Method and apparatus for surgical high speed follower jamming based on selectable target direction
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-001/69
H04K-003/00
출원번호
US-0201413
(2005-08-10)
발명자
/ 주소
Karlsson,Lars
출원인 / 주소
Networkfab Corporation
대리인 / 주소
Steins &
인용정보
피인용 횟수 :
9인용 특허 :
2
초록▼
A Method and Apparatus for Surgical High-speed Follower Jamming Based on Selectable Target Direction is disclosed. The system and method of the present invention automatically detects and jams sudden, short duration communications signals in near real time, in a compass direction selected by the use
A Method and Apparatus for Surgical High-speed Follower Jamming Based on Selectable Target Direction is disclosed. The system and method of the present invention automatically detects and jams sudden, short duration communications signals in near real time, in a compass direction selected by the user on the battlefield. Such a system is unique in the number and type of input parameters it uses to allow the operator to tailor its jamming results. The system solves the efficiency, fratricide, and latency issues of prior art systems and greatly enhances the operational capabilities of the modern military unit by allowing the unit to kill all enemy transmitters in any specified sector of the battlefield. The system embodies the addition of real time direction-finding methods to the invention of application Ser. No. 10/912,976. The system has all the abilities of the system described in the '976 application, but is further able to automatically detect the direction of the incoming signals (relative to the user), and thereafter to add that information to the jamming decision logic. Finally, the preferred system provides a user interface that enables operators to set up the system to jam on enemy signals based upon the direction to those enemy signals.
대표청구항▼
What is claimed is: 1. A directional electronic signal jamming system, comprising: a wideband signal collection front end, comprising: a wideband receiver for receiving RF signals transmitted by an RF signal transmitter across a broad spectrum said receiver comprising first, second and third antenn
What is claimed is: 1. A directional electronic signal jamming system, comprising: a wideband signal collection front end, comprising: a wideband receiver for receiving RF signals transmitted by an RF signal transmitter across a broad spectrum said receiver comprising first, second and third antennae means for receiving RF signals simultaneously, said antennae means in geographically spaced relation; a digitizer for creating an individual continuous stream of digitized data representing each said antennae means' received RF signals; a digital data conversion means for converting said individual digitized data stream into FFT frequency bins by individual stream; direction determination means for determining a direction from said antennae means to said RF transmitter; directional lockout means responsive to said direction determination means for selectively enabling jamming signal transmissions against said RF transmitter only if said direction to said RF transmitter from said antennae means is within a bearing sector of interest; a signal evaluation logic module, comprising: a comparing means for comparing each said frequency bin to configurable preset lockout frequency bins; a peak detection means for evaluating and calculating the amplitude value for each bin by using a configurable number of data point samples for each of those bins; a windowing means for evaluating and calculating the amplitude value for each bin by using a configurable number of data point samples for each of those bins; and a priority selection means for evaluating the prioritization of jammer signal targets based upon configurable settings; an internal transmitter also responsive to said comparing, peak detection, windowing, and priority logic for transmitting a jamming signal on said frequency of interest; and an internal cycle generator timing circuit for the proper high-speed automatic triggering of all modules of the directional electronic signal jamming system. 2. The system of claim 1, wherein said directional lockout means further consolidates said individual frequency bins representing said individual digitized data streams into a single frequency bin. 3. The system of claim 2, wherein said digital data conversion means comprises means for converting said digitized data from a time domain to a frequency domain. 4. The system of claim 3, wherein said digital data conversion means comprises means for converting said frequency domain converted data from separate real and imaginary components to normalized amplitude data. 5. The system of claim 4, wherein said normalized amplitude data is categorized by frequency bins. 6. The system of claim 5, wherein said comparing means comprises comparing data in said frequency bins to frequency lockouts. 7. The system of claim 6, further comprising peak detection means for evaluating the amplitude of said frequency bins. 8. The system of claim 7, wherein said windowing means for evaluating each bin to be within configurable amplitude bound limits. 9. The system of claim 8, further comprising means for comparing said amplitude-evaluated signal to a pre-established signal priority list. 10. The system of claim 9, wherein said signal priority logic means further compares said amplitude-evaluated signal to a real-time priority request. 11. A method for jamming RF signal transmissions, comprising the steps of: detecting an analog RF signal transmission emanating from a signal transmitter, said detected RF signal transmission first having been received by first, second and third antennae means located in geographically spaced relation to one another; digitizing said detected RF signal transmission into first, second and third digitized signals; converting said digitized signals into first, second and third frequency bins; analyzing phase characteristics of each said digitized signal determining a relative bearing between said antennae means and said signal transmitter responsive to said analyzing; comparing said frequency bins to configurable lockout frequency bins; evaluating and calculating the amplitude value for each said bin by using a configurable number of data point samples for each of those bins; evaluating the prioritization of jammer signal targets based upon configurable settings; triggering said start of the conversion of said digitized signals into said frequency bins; triggering the end of the conversion of said digitized signals into said frequency bins; triggering the release of frequency bin information at the correct time; triggering of the external power amplifier at the correct time to prepare for jammer signals; automatic programming of a digital signal generator to generate a jamming signal, said signal generator triggering responsive to said comparing. 12. The method of claim 11, further comprising a bearing transmission lockout step comprising ceasing said jamming method responsive to said analyzing and said determining steps. 13. The method of claim 12, wherein said bearing transmission lockout step ceases said jamming method when said relative bearing is in a locked out bearing sector. 14. The method of claim 13, further comprising an attenuator switching step, responsive to said digital signal generator, wherein an attenuator switch means for shielding the RF receiver system performing said receiving step is actuated. 15. The method of claim 14, further comprising the proper triggering of all internal and external elements of the electronic jamming system. 16. The method of claim 15, further comprising a lockout step prior to said comparing step, said lockout step comprising comparing said converted digitized signals to a dynamic list of lockout frequency bins. 17. The method of claim 16, further comprising a signal threshold-comparing step prior to said comparing step, comprising comparing said frequency bins to signal threshold settings. 18. The method of claim 17, wherein said digital transmitter triggering step is responsive to said signal threshold-comparing step.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (2)
Wagstaff Ronald A., Advanced signal processing filter.
Coleman, Timothy W; Gabriel, Dondon B; Kogan, Boris, Systems and methods for radio frequency hopping communications jamming utilizing software defined radio platforms.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.