Apparatus and method for determination of a direction to an object
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01S-013/00
G01S-013/08
출원번호
UP-0666832
(2005-09-08)
등록번호
US-7764221
(2010-08-13)
우선권정보
DE-10 2004 052 518(2004-10-29)
국제출원번호
PCT/EP2005/054458
(2005-09-08)
§371/§102 date
20071002
(20071002)
국제공개번호
WO06/045668
(2006-05-04)
발명자
/ 주소
Voigtlaender, Klaus
Irion, Hans
Steinhauer, Matthias
Menzel, Wolfgang
출원인 / 주소
Robert Bosch GmbH
대리인 / 주소
Kenyon & Kenyon LLP
인용정보
피인용 횟수 :
3인용 특허 :
17
초록▼
An apparatus includes a plurality of sensor modules that are disposed at spacings with respect to one another, each sensor module having a local oscillator device. The oscillator device generates an oscillator signal that is passed on to a transmit/receive device, and the oscillator signal is radiat
An apparatus includes a plurality of sensor modules that are disposed at spacings with respect to one another, each sensor module having a local oscillator device. The oscillator device generates an oscillator signal that is passed on to a transmit/receive device, and the oscillator signal is radiated. The transmit/receive device is set up such that it can receive signals reflected from the object. A phase detection device is coupled at one input to the oscillator device and at a second input to the transmit/receive device. Based on the oscillator signal and the received reflected signals, the phase detection device determines a phase signal. A control and signal-processing device determines, based on the spacings of the sensor modules with respect to one another and the phase signals, a direction of the object with respect to the sensor module.
대표청구항▼
What is claimed is: 1. An apparatus for determination of a direction to an object (K), comprising: a control and signal-processing device; and a plurality of sensor modules, each sensor module including: a local oscillator device configured to generate a first oscillator signal, a transmit/receive
What is claimed is: 1. An apparatus for determination of a direction to an object (K), comprising: a control and signal-processing device; and a plurality of sensor modules, each sensor module including: a local oscillator device configured to generate a first oscillator signal, a transmit/receive device configured to transmit a respective oscillator signal and to receive signals reflected by the object, and a phase detection device including at least one mixer and a second local oscillator device configured to generate a second oscillator signal to be mixed into the first oscillator signal and into the received reflected signal by said at least one mixer, wherein the phase detection device is: coupled at one input to the oscillator device and at a second input to the transmit/receive device, configured to determine a phase difference between the first oscillator signal and the received reflected signal, and connected at one output to the control and signal-processing device; the sensor modules disposed with respect to one another at spacings in a range of half a wavelength to five times a wavelength of the oscillator signal; wherein the control and signal-processing device is configured to determine, based on the spacings and differences of the phase differences, a direction of the object with respect to the sensor modules. 2. The apparatus according to claim 1, further comprising a collimation device including at least one of a lens and (b) a dielectric polyrod disposed in a radiation direction of at least one of the sensor modules: 3. The apparatus according to claim 1, further comprising a quasi-optical filter disposed in a radiation direction of at least one of the sensor modules. 4. The apparatus according to claim 1, wherein the phase detection device includes a mixer configured to demix the received reflected signal. 5. The apparatus according to claim 1, wherein the phase detection device is arranged such that the phase difference is determinable by direct sampling of the received reflected signal. 6. The apparatus according to claim 1, wherein the oscillator devices of at least two sensor modules are not synchronized with one another. 7. The apparatus according to claim 1, further comprising a synchronization device configured to synchronize the oscillator devices. 8. The apparatus according to claim 7, wherein the oscillator devices include a phase-lock loop. 9. The apparatus according to claim 1, wherein the sensor modules are disposed at least one of (a) along a line and (b) in planar fashion. 10. A method for a determination of a direction to an object, comprising: transmitting a first oscillator signal from at least one of transmit/receive module of sensor modules; receiving by the transmit/receive modules, from a direction, signals reflected at the object; determining a phase difference between the oscillator signal and the received reflected signal for at least two of the sensor modules by a phase detection device including at least one mixer and a local oscillator device configured to generate a second oscillator signal to be mixed into the first oscillator signal and into the received reflected signal by said at least one mixer, determining, by a control and signal-processing device, the direction, based on spacings of the sensor modules with respect to one another and the ascertained phase differences. 11. The method according to claim 10, wherein a filter characteristic of a filter device of a phase detection device is adjusted by at least one of the sensor modules such that the phase detection device only determines phase signals that are based on signals transmitted by the sensor module. 12. The method according to claim 10, wherein the method is performed according to the device recited in claim 1. 13. An apparatus for determination of a direction to an object (K), comprising: a control and signal-processing device; a first sensor module including a local oscillator device configured to generate a first oscillator signal, a transmit device configured to transmit the oscillator signal; and a plurality of additional sensor modules; wherein each of the sensor modules includes: a receive device configured to receive signals reflected by the object, and a phase detection device including at least one mixer and a second local oscillator device configured to generate a second oscillator signal to be mixed into the first oscillator signal and into the received reflected signal by said at least one mixed wherein the phase detection device is: coupled at one input to the first oscillator device and at a second input to the receive device, configured to determine a phase difference between the first oscillator signal and the received reflected signal, and coupled at one output to the control and signal-processing device the sensor modules disposed with respect to one another at spacings in a range of half a wavelength to five times a wavelength of the oscillator signal, and wherein the control and signal-processing device is configured to determine, based on the spacings and differences of the phase differences, a direction of the object with respect to the sensor modules. 14. The apparatus of claim 13, further comprising: a second sensor module including a local oscillator device configured to generate a second oscillator signal, different from the oscillator signal of the first sensor; and a transmit device configured to transmit the second oscillator signal.
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