초록 ▼

The dual synthetic aperture array system processes returns from the receiving arrays. The two identical receiving arrays employing displaced phase center antenna techniques subtract the corresponding spectrally processed data to cancel clutter. It is further processed that a moving target is detecte

The dual synthetic aperture array system processes returns from the receiving arrays. The two identical receiving arrays employing displaced phase center antenna techniques subtract the corresponding spectrally processed data to cancel clutter. It is further processed that a moving target is detected and its velocity, angular position and range is measured, in or out of the presence of clutter. There are many techniques presented in the disclosure. These techniques are basically independent but are related based on common set of fundamental set of mathematical equations, understanding of radar principles and the implementations involved. These many techniques may be employed singly and/or in combination depending on the application and accuracy required. They are supported by a system that includes, optimization of the number of apertures, pulse repetition frequencies, DPCA techniques to cancel clutter, adaptive techniques to cancel clutter, motion compensation, weighting function for clutter and target, and controlling the system in most optimum fashion to attain the objective of the disclosure.

대표청구항 ▼

The dual synthetic aperture array system processes returns from the receiving arrays. The two identical receiving arrays employing displaced phase center antenna techniques subtract the corresponding spectrally processed data to cancel clutter. It is further processed that a moving target is detecte

The dual synthetic aperture array system processes returns from the receiving arrays. The two identical receiving arrays employing displaced phase center antenna techniques subtract the corresponding spectrally processed data to cancel clutter. It is further processed that a moving target is detected and its velocity, angular position and range is measured, in or out of the presence of clutter. There are many techniques presented in the disclosure. These techniques are basically independent but are related based on common set of fundamental set of mathematical equations, understanding of radar principles and the implementations involved. These many techniques may be employed singly and/or in combination depending on the application and accuracy required. They are supported by a system that includes, optimization of the number of apertures, pulse repetition frequencies, DPCA techniques to cancel clutter, adaptive techniques to cancel clutter, motion compensation, weighting function for clutter and target, and controlling the system in most optimum fashion to attain the objective of the disclosure. es a predetermined inputted reference voltage to an nth power; a comparison voltage operating unit that is connected to at least one output terminal of said reference voltage generating unit to select a reference voltage; and a comparator connected to an output terminal of the comparison voltage operating unit for receiving the selected reference voltage and to an input terminal for a voltage to be converted. 2. The logarithmic A/D converter of claim 1, wherein the comparison voltage operating unit includes a second multiplier connected to a base voltage input terminal that receives a predetermined base voltage. 3. The logarithmic A/D converter of claim 2, further comprising: a reference voltage input terminal for receiving the inputted reference voltage as a lowest reference voltage that can be externally set, wherein the reference voltage generating unit includes a plurality of first multipliers that sequentially raise the inputted reference voltage to the nth power, starting from the lowest reference voltage. 4. The logarithmic A/D converter of claim 3, wherein n in the nth power is two. 5. The logarithmic A/D converter of claim 2, further comprising: a reference voltage sequentially selecting unit that sequentially selects said reference voltage to be inputted to the second multiplier; and a sequentially outputting unit that sequentially outputs a value which has been outputted by the comparator. 6. The logarithmic A/D converter of claim 2, further comprising: an output voltage sequentially selecting unit that sequentially selects a voltage outputted by the second multiplier. 7. The logarithmic A/D converter of any of claims 1 and 2, making comparisons in parallel. 8. A logarithmic A/D conversion method, comprising: generating a plurality of reference voltages, wherein values of the reference voltages have a relation of a progression made by raising the reference voltages to an nth power from an inputted reference voltage; generating a plurality of comparison voltages based on at least one of the plurality of reference voltages; and determining an output digital value based on the plurality of comparison voltages, the output digital data corresponding to a voltage to be converted. 9. The logarithmic A/D conversion method of claim 8, generating each comparison voltage by multiplying at least one of the reference voltages and a predetermined base voltage. 10. The logarithmic A/D conversion method of any of claims 8 and 9, comprising: setting the inputted reference voltage as a lowest reference voltage; and generating higher reference voltages by sequentially raising reference voltages to the nth power, starting from the lowest reference voltage. 11. The logarithmic A/D conversion method of any of claims 8 and 9, comprising: generating each reference voltage sequentially; and generating the output digital value sequentially. 12. The logarithmic A/D conversion method of any of claims 8 and 9, comprising: generating each comparison voltage sequentially; and determining the output digital value by sequentially comparing each comparison voltage with the voltage to be converted. 13. The logarithmic A/D conversion method of any of claims 8 and 9, comprising: generating the plurality of comparison voltages in parallel in accordance with bit sequences, and making comparisons in parallel. 14. The logarithmic A/D conversion method of claim 8, wherein n in the nth power is two. 15. A physical quantity measuring system, comprising a logarithmic A/D converter that includes: a reference voltage generating unit that contains at least one first multiplier that raises a predetermined inputted reference voltage to an nth power; a comparison voltage generating unit that is connected to an output terminal of the reference voltage generating unit; and a comparator connected to an output terminal of the comparison voltage generating unit and to an input terminal for a voltage to be conve rted; wherein a voltage inputted to the physical quantity measuring system is connected to a base voltage input terminal of the converter, and a voltage outputted from the quantity measuring system is connected to the input terminal for a voltage to be converted. ansmitting functions and a second telephone having audio and image receiving functions; an image sensor assembly for sensing images within a predetermined image area operatively connected to the first telephone and providing a first output signal upon detection of a predetermined amount of image change in the image area; a target setting unit for setting a predetermined sub-area of the predetermined image area as the area monitored for a predetermined amount of image change in the image area; an infrared detecting unit for detecting infrared rays from the monitored area and separately identifying the presence of a human body and a flame in the monitored area, and providing respective second and third output signals; an auto-dialing instruction originating section operatively connected to the first telephone for calling the second telephone automatically based on the first output signal whereby the second telephone is automatically sent an image of the image area upon the occurrence of the predetermined change in the image area; and a first judging unit for determining when the second and third output signals of the infrared detecting unit indicate an occurrence whereby the auto-dialing instruction originating section is activated to call pre-set telephones. 2. The surveillance system of claim 1 wherein the image sensor assembly is mounted on the first telephone. 3. The surveillance system of claim 1 wherein the first telephone has a chargeable battery and further including a holder for mounting the first telephone for charging the chargeable battery. 4. The surveillance system of claim 3 wherein the holder further includes an infrared sensor for mounting a second predetermined area and for providing an output signal to activate the auto-dialing instruction originating section. 5. The surveillance system of claim 4 wherein the infrared sensor is one of a pyroelectric sensor and a thermopile sensor. 6. The surveillance system of claim 4 wherein the infrared sensor senses infrared rays of at least 10 μm in wavelength to detect a human body. 7. The surveillance system of claim 1 wherein a third portable telephone having audio and image transmitting functions is set to provide a second predetermined image area whereby a network of surveillance portable telephones is provided. 8. The surveillance system of claim 7 wherein the target settling unit defines at least a straight line of pixels within the image area. 9. The surveillance system of claim 1 wherein the image sensor is mounted on a daughter device that is separate from and operatively connected to the first telephone. 10. The surveillance system of claim 1 further including a holder assembly for mounting the first telephone to provide a rotational adjustment of the telephone to define the predetermined image area. 11. The surveillance system of claim 1 wherein the image sensor is pivotally mounted on the first telephone to enable the user to subjectively define the predetermined image area. 12. The surveillance system of claim 11 further including an adjustable holder for mounting the first telephone at different positions relative to a supporting surface. 13. The surveillance system of claim 12 wherein the adjustable holder includes a support base, a pivotal holder body that is movably connected to the support base and a support link that can adjustably fix the pivotal holder body above the support base wherein the pivotal holder body can mount the first telephone. 14. The surveillance system of claim 1 wherein the image sensor assembly includes a second judging unit for determining the occurrence of the predetermined change in the image area. 15. A method of providing remote surveillance to a security object space, comprising: providing a plurality of portable telephones including a first telephone having audio and image transmitting functions and a second telephone having audio and image receiving functions, the first telephone having an image sensor for sensing images within a predetermined area operatively connected to the first telephone, an image target setting unit for defining less than the entire pixels defining the predetermined area as a target image area, a judging unit for determining when the image changes within the target image area, and an auto dialing instruction originating section for calling the second telephone automatically based on an output signal from the judging unit; positioning the portable first telephone to define a security area covered by the predetermined area of the image sensor by adjusting the position of the image sensor; setting the target image area to define a threshold of image change, within the target area, necessary to require surveillance; carrying the second telephone to a remote location; automatically dialing the second telephone when the threshold of image change is judged; and providing the image of the predetermined area directly to the second portable telephone at the remote location. 16. The method of claim 15 further including providing and positioning a third portable telephone to provide a network of surveillance portable telephones each capable of automatically calling and providing images to the second telephone. 17. A communication device for monitoring an area, comprising: a portable telephone having audio and image transmitting functions; a support holder for positioning the portable telephone; an infrared detecting unit for detecting infrared rays from the monitored area, and separately identifying the presence of a human body and a flame in the monitored area, and providing respective output signals; an auto-dialing instruction originating section connected to the portable telephone for calling a pre-set telephone having an image display function; and a judging unit for determining when output signals of the infrared detecting unit indicates an occurrence whereby the auto-dialing instruction originating section is activated to call the pre-set telephones. 18. The communication device of claim 17 wherein the infrared detecting unit is mounted on the support holder. 19. The communication device of claim 17 wherein the infrared detecting unit is remote from the portable telephone and the support holder. 20. A communication device, which is equipped with a telephone conversation function used on commercial electromagnetic waves, comprising: an image sensor; transmitting means for transmitting an image shot using the image sensor to a recipient; detecting means for detecting infrared rays to particularly identify the presence of either a human body or a flame; and dialing setting means for calling a preset telephone with an image display function of the recipient, wherein a predetermined output signal from the infrared detecting means is entered into the dialing setting means, so that the preset telephone with an image display function of the recipient is automatically called. 21. A communication device according to claim 20 wherein an infrared sensor mounted to the detecting means for detecting infrared rays is a pyroelectric type or a thermopile type, and at least one of a sensor sensing infrared rays of 10 μm in wavelength radiated from a human body and a sensor sensing infrared rays in the vicinity of 4.3 μm in wavelength radiated from a flame equipped. 22. An auxiliary device for communication comprising: detecting means for detecting infrared rays and particularly identifying at least one of a human body and a fire equipped to a vessel connected to an external connecting terminal of a portable telephone provided with a speech and image transmitting function using commercial electromagnetic waves; and an auto-dialing instruction originating section for calling a specified telephone of the recipient based on a predetermined output signal from the detecting means automatically depending on whether a human body is identified or a flame is identified while specifying the telephone equipped with an image display function for the recipient is equipped to one of a portable telephone, a holder for the portable telephone and the vessel connected to the holder. 23. An auxiliary device for communication according to claim 22 wherein a sensor as a human body detecting means comprises at least one of a pyroelectricity type or a thermopile type infrared detector detecting infrared rays in the vicinity of 10 μm in wavelength, an ultrasonic wave type detector and a near infrared detector detecting near infrared rays in the vicinity of 1 μm in wavelength. 24. An auxiliary device for communication according to claim 23 wherein the detecting means includes a fire sensor comprising at least one of a pyroelectricity type or a thermopile type infrared flame detector detecting infrared rays in the vicinity of 4.3 μm in wavelength, a thermal detector, a smoke detector and an ultraviolet detector. 25. An auxiliary device for communication according to claim 22 further including an image means for providing shot image information from a sender side to a specified telephone is operatively connected to the portable telephones. 26. A method of providing remote surveillance to a security object space, comprising: providing a portable telephone having a human body detecting sensor for sensing infrared rays radiated by a human body, a fire detecting sensor for sensing infrared rays radiated by a flame, a judging unit for judging whether a human body or a flame has been detected, and an auto dialing instruction originating section for calling a predetermined location automatically based on an output signal from the judging unit; positioning the portable telephone to define a security area covered by the human body detecting and fire detecting sensors; detecting the presence of at least one of a human body and a flame in the security area; and automatically dialing a respective predetermined location based on whether a human body or a flame is detected in the security area. 27. The method of claim 26 wherein said portable phone further includes an image sensor for sensing image information within said security area, the method further comprising: sensing image information of said security area upon the detection of either a human body or a flame in said security area; transmitting said sensed image information of said security area to the respectively dialed predetermined location. 28. A surveillance system comprising: a plurality of portable telephones, at least a first telephone having audio and image transmitting functions and a second telephone having audio and image receiving functions; an image sensor assembly for sensing images within a predetermined image area operatively connected to the first telephone; a target setting unit for setting a first predetermined sub-area of the predetermined image area as the area monitored for a predetermined amount of image change in the image area and providing a first output signal upon detection of a predetermined amount of image change in the first predetermined sub-area image area of the predetermined image area; an infrared sensor unit for monitoring a second predetermined area including a first infrared detector with a first filter for providing a pass through of radiation of approximately 10 mm in wavelength to receive radiation from a human body and a second infrared detector with a second filter for providing a pass through of radiation of approximately 4.3 mm in wavelength to receive radiation from a flame; a judging unit connected to the infrared sensor unit for receiving an input from the first infrared detector and determining when a human body is within the second predetermined area and providing a second output signal, and for receiving an input from the second infrared detector and determining when a flame is within the second predetermined area and providing a third output segment; and an auto-dialing instruction originating section operatively connected to the f irst telephone for calling the second telephone automatically based on the receipt of one of the first output signal, second output signal and third output signal. 29. The surveillance system according to claim 28 wherein the first telephone has a chargeable battery and further including a holder assembly for removably mounting the first telephone for charging the chargeable battery, the infrared sensor unit and judging unit is mounted on the holder assembly and operatively connected to the auto-dialing instruction originating section. 30. The surveillance system of claim 29 wherein the image sensor assembly is mounted on a daughter device that is separate from and operatively connected to the first telephone. 31. The surveillance system of claim 29 wherein the holder assembly for mounting the first telephone provides a rotational adjustment of the first telephone to define the predetermined image area. ications system in accordance with claim 10, wherein said piping structure comprises at least a portion of a well casing. 15. A communications system in accordance with claim 10, wherein said piping structure comprises at least a portion of a liner for a lateral branch of said well. 16. A communications system in accordance with claim 1, wherein said induction choke is located along said first location. 17. A communications system in accordance with claim 1, including a plurality of devices electrically connected to said electrically conductive portion of said piping structure, wherein said devices are operable to communicate with each other. 18. A communications system in accordance with claim 1, including a plurality of devices electrically connected to said electrically conductive portion of said piping structure, wherein a number of said devices are individually addressable. 19. A communications system in accordance with claim 1, further comprising: an electrical current transformer adapted to transform current flowing within said piping structure to an induced secondary current. 20. A system for providing communications among a plurality of devices in a well, comprising: a piping structure within said well, said piping structure having an electrically conductive portion; a master communication device electrically connected to said electrically conductive portion of said piping structure, said master communication device being adapted to send and receive communication signals via time-varying current; a plurality of slave communication devices electrically connected to said electrically conductive portion of said piping structure, said slave communication devices being adapted to send and receive communication signals via time-varying current; and an induction choke located about a portion of said piping structure, said induction choke being adapted to route time-varying current within said piping structure, and such that said master communication device can communicate with said slave communication devices via said piping structure. 21. A system in accordance with claim 20, wherein at least two of said slave communication devices can communicate with each other via said piping structure. 22. A system in accordance with claim 20, wherein at least two of said slave communications devices are individually addressable. 23. A communications system comprising: a piping structure comprising a first location, a second location, and an electrically conductive portion extending between said first and second locations, wherein said first and second locations are distally spaced along said piping structure; a first communication device electrically connected to said electrically conductive portion of said piping structure along said first location, said first communication device being adapted to send and receive communication signals via time-varying current; an induction choke located about an electrically choked portion of said electrically conductive portion of said piping structure, said induction choke being adapted to route time-varying current within said piping structure between said electrical connection location for said first communication device and an electrical return; an electrical current transformer located about part of said electrically conductive portion of said piping structure along said second location, said transformer being located along said piping structure between said electrical connection location for said first communication device and said induction choke, and said transformer being adapted to transform current flowing within said piping structure to an induced secondary current in said transformer; and a second communication device electrically connected to said transformer, such that said second communication device can communicate with said first communication device via said transformer and said piping structure. 24. A communication system for a petroleum well, comprising: a piping structure comprising a first location, a second location, and an electrically conductive portion extending between said first and second locations, wherein said first and second locations are distally spaced along said piping structure, and wherein said piping structure is part of a petroleum production system for said petroleum well; a computer system electrically connected to said electrically conductive portion of said piping structure along said first location, said computer system comprising a source of time-varying current and a first communication device, wherein said first communication device is adapted to send and receive spread spectrum communication signals along said electrically conductive portion of said piping structure via time-varying current waveforms; a downhole device electrically connected to said electrically conductive portion of said piping structure along said second location, said downhole device comprising a second communication device, wherein said second communication device is adapted to send and receive spread spectrum communication signals along said electrically conductive portion of said piping structure via time-varying current waveforms; and an unpowered ferromagnetic induction choke located about an electrically choked portion of said electrically conductive portion of said piping structure, said choke being adapted to route time-varying current flowing within said electrically conductive portion of said piping structure between said computer system and said downhole device, and such that said first communication device can communicate with said second communication device via said electrically conductive portion of said piping structure. 25. A communications system in accordance with claim 24, wherein said downhole device comprises a sensor, said sensor being adapted to take measurements and generate sensor data, said computer system being adapted to process said sensor data received from said first communication device via said second communication device. 26. A communications system in accordance with claim 25, wherein said sensor is adapted to measure fluid temperature. 27. A communications system in accordance with claim 25, wherein said sensor is adapted to measure fluid flow rate. 28. A communications system in accordance with claim 25, wherein said sensor is adapted to measure pressure. 29. A communications system in accordance with claim 25, wherein said sensor is adapted to acoustically measure pool depth. 30. A communications system in accordance with claim 25, wherein said sensor is adapted to measure a valve position. 31. A communications system in accordance with claim 25, wherein said sensor is adapted to detect a chemical property of a fluid. 32. A communications system in accordance with claim 24, wherein said downhole device comprises an electrically controllable valve. 33. A communications system in accordance with claim 32, wherein said valve comprises a low current electric motor. 34. A communications system in accordance with claim 24, wherein said downhole device comprises a electrical current transformer. 35. A communications system in accordance with claim 24, wherein said downhole device comprises multiple components electrically connected together. 36. A communications system in accordance with claim 24, wherein said downhole device comprises a battery. 37. A petroleum well for producing petroleum products, comprising: a piping structure comprising a first location, a second location, and an electrically conductive portion extending between said first and second locations, wherein said first and second locations are distally spaced along said piping structure; a first communication device electrically connected to said electrically conductive portion of said piping structure along said first location, said first communication device being adapted to send and receive communication signals via time-varying current; a second communication device electrically connected to said electrically conductive portion of said piping structure along said second location, said second communication device being adapted to send and receive communication signals via time-varying current; and an induction choke located about an electrically choked portion of said electrically conductive portion of said piping structure, said induction choke being adapted to route time-varying current within said piping structure between said electrical connection location for said first communication device and said electrical connection location for said second communication device, and such that said first communication device can communicate with said second communication device via said piping structure. 38. A petroleum well in accordance with claim 37, wherein said induction choke comprises a ferromagnetic material. 39. A petroleum well in accordance with claim 37, wherein said induction choke is unpowered. 40. A petroleum well in accordance with claim 37, further comprising: a controllable valve, said controllable valve being electrically connected to said second communication device such that said valve can be remotely controlled via said second communication device. 41. A method of communicating with a remote device, comprising the steps of: providing an induction choke about a portion of a piping structure; generating a communication signal with a first communication device; transmitting said signal via a time-varying current along said piping structure using said first communication device; routing said time-varying current within said piping structure using said induction choke; and receiving said signal in said remote device via said time-varying current traveling within said piping structure. 42. A method in accordance with claim 41, wherein said communication signal is a spread spectrum signal. 43. A method of communicating with a downhole communication device in a well, comprising the steps of: providing an induction choke about a portion of a piping structure in said well; generating a spread spectrum signal with a surface communication device; transmitting said signal via a time-varying current along said piping structure using said surface communication device; routing said time-varying current within said piping structure using said induction choke; and receiving said signal in said downhole communication device via said time-varying current traveling within said piping structure. 44. A method in accordance with claim 43, further comprising the steps of: receiving said signal with a relay communication device located along said piping structure between said surface communication device and said downhole communication device; amplifying said signal with said relay communication device; and transmitting said signal along said piping structure using said relay communication device. 45. A method in accordance with claim 43, further comprising the steps of: generating another spread spectrum signal with said downhole communication device; transmitting said another signal via another time-varying current along said piping structure using said downhole communication device; routing said another time-varying current within said piping structure using said induction choke; and receiving said signal in said surface communication device via said piping structure. 46. In a petroleum well having a piping structure embedded in an elongated borehole extending into the earth, a communication system comprising: an induction choke configured for enveloping a portion of said piping structure and operable for developing a voltage potential on the piping structure to define an electrically conductive segment of said piping structure when a time-varying signal is applied to the electrically conductive segment of said piping structure; and a plurality of individually addressable communication devices coupled to the electrically conductive segment. 47. The com munications system of claim 46, including a plurality of induction chokes with a communication device associated with a number of said induction chokes, the associated communication devices including a router whereby the time-varying signal may be routed to selectively bypass an associated choke. ding through said holes for providing a tactile surface for each conductive dome in said continuous conductive element. 10. An exchangeable cover according to claim 7, comprising mechanical coupling means for providing a repeatedly disconnectable snap-on coupling between it and the mobile telecommunication device. 11. A set of exchangeable covers for a mobile telecommunication device, comprising: a first cover and a second cover, within each of said first and second covers means for mechanically attaching the cover to the same mobile telecommunication device, within each of said first and second covers a keypad that comprises activatable keys, within each of said first and second covers first capacitive coupling means for capacitively obtaining an electric input signal to the keypad from an external input signal source, within each of said first and second covers second capacitive coupling means for capacitively providing an output signal from the keypad to an external signal detector, within each of said first and second covers signal conversion means for responding to a key activation by selectively converting an electric input signal into an electric output signal the value of which depends on the activated key; and wherein the first cover has the keys of the keypad at different locations than the second cover. 12. An electronic device, comprising: a keypad that comprises activatable keys, an outer cover part, a printed circuit board, input signal generating means for generating an input signal to the keypad, signal conversion means for responding to a key activation by selectively converting the input signal into an output signal the value of which depends on the activated key, and output signal detection means for detecting the value of the output signal; wherein: the input signal generating means and the output signal detection means are located within the printed circuit board, the signal conversion means are attached to the outer cover part, and the electronic device comprises a first capacitive coupling between the input signal generating means and the signal conversion means, and a second capacitive coupling between the signal conversion means and the output signal detection means. 13. An electronic device according to claim 12, comprising: within the printed circuit board an AC voltage generator for generating an AC voltage signal as an input signal to the keypad, within the printed circuit board a first set of capacitive electrodes as a part of said first capacitive coupling means, said first set of capacitive electrodes being coupled to said AC voltage generator, within the signal conversion means a second set of capacitive electrodes as a part of said first capacitive coupling means, within the signal conversion means and coupled to said second set of capacitive electrodes a resistive strip having a first end and a second end comprising a multitude of coupling points at different positions between said first end and said second end, within the signal conversion means a third set of capacitive electrodes as a part of said second capacitive coupling means, within the signal conversion means and coupled to said third set of capacitive electrodes means for selectively coupling, as a response to a key activation, one of said coupling points at a time to said third set of capacitive electrodes, within the printed circuit board a fourth set of capacitive electrodes as a part of said second capacitive coupling means, within the printed circuit board and coupled to said fourth set of capacitive electrodes a peak detector for detecting an extreme value of an output AC voltage signal; and wherein the number of capacitive electrodes in each set of capacitive electrodes is at least one. 14. An electronic device according to claim 13, further comprising, between said AC voltage generator and said first set of capacitive electrodes, switching means for selectively coupling the AC volt age signal generated by said AC voltage generator to said first set of capacitive electrodes with different polarities. 15. An electronic device according to claim 14, further comprising, coupled to said peak detector, means for selectively storing at least two detected extreme values in synchronism with the operation of said switching means so that said two detected extreme values correspond to different polarities of the AC voltage signal generated by said AC voltage generator. 16. An electronic device according to claim 12, wherein the output signal detection means comprise a mean value storage and comparator for storing detected values associated with previous key activations and for comparing a detected output signal value against the stored values. e vehicle and furnishing a second wheel electronics, wherein the second wheel electronics is furnished in a second mounting position on the second wheel,; mounting a receiving antenna on a vehicle body; connecting an electronic receiving and analysis system to the receiving antenna by a wire; monitoring not only the first tire pressure of the first wheel, but in addition a first acceleration value derived from a first moving condition of the first wheel; monitoring not only the second tire pressure of the second wheel, but in addition a second acceleration value derived from a second moving condition of the second wheel; transmitting a first signal derived from the first tire pressure of the first wheel and the first acceleration value by means of the first transmitter to the receiving antenna; transmitting a second signal derived from the second tire pressure of the second wheel and the second acceleration value by means of the second transmitter to the receiving antenna; picking up the first signal containing a first identifier by the receiving antenna; picking up the second signal containing a second identifier by the receiving antenna; transmitting the first signal and the second signal to the electronic receiving and analysis system and analyzing the first signal and the second signal in the electronic receiving and analysis system with respect to the first identifier and to the second identifier; analyzing first information, contained in the first signal; analyzing second information, contained in the second signal, determining a first sign of a first tangential acceleration (b1) occurring in the first wheel electronics for the first wheel and determining a second sign of a second tangential acceleration (b2) occurring in the second wheel electronics for the second wheel; additionally determining a third sign of the variation of a first c