BAE Systems Information and Electronic Systems Integration Inc.
대리인 / 주소
Davis & Bujold, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
The system and method for a digital light processing (DLP) guidance system having a digital light processing (DLP) mirror array at the laser source. A receiver tracks location of the air-borne object using a retro reflector on a pulse-to-pulse basis. The DLP mirror array tracks the air-borne object
The system and method for a digital light processing (DLP) guidance system having a digital light processing (DLP) mirror array at the laser source. A receiver tracks location of the air-borne object using a retro reflector on a pulse-to-pulse basis. The DLP mirror array tracks the air-borne object with a non-scanning beam and immediately provides a correction update to the controller using a pulse repetition interval (PRI) varying code. The system can be packaged in a small format, at a lower cost, and with a higher reliability.
대표청구항▼
1. A guidance system comprising: a laser source configured to generate a plurality of pulsed signals comprising pulse repetition interval information, wherein the plurality of pulsed signals are transmitted in a pattern;an air-borne device comprising a retroreflector and a laser range finder, the la
1. A guidance system comprising: a laser source configured to generate a plurality of pulsed signals comprising pulse repetition interval information, wherein the plurality of pulsed signals are transmitted in a pattern;an air-borne device comprising a retroreflector and a laser range finder, the laser range finder comprising a first PIN detector and a second PIN detector, where the first PIN detector is polarized and the second PIN detector is non-polarized, wherein the air-borne device receives the plurality of pulsed signals and the retroreflector generates a plurality of reflected pulsed signals;a control receiver comprising: a digital light processing mirror array configured to detect the plurality of reflected pulsed signals returned by the retroreflector; andan air-borne controller configured to guide the air-borne device using the plurality of pulsed signals comprising the pulse repetition interval information. 2. The guidance system of claim 1, wherein the laser source is a 1.57 μm micro laser. 3. The guidance system of claim 1, wherein a portion of the plurality of pulsed signals indicate elevation and azimuth information for the air-borne device. 4. The guidance system of claim 3, wherein the azimuth and elevation information are coded separately. 5. The guidance system of claim 1, wherein the laser range finder comprises two or more avalanche photodiodes. 6. The guidance system of claim 5, wherein the two or more avalanche photodiodes are InGaAs avalanche photodiodes. 7. A digital light processing method of guiding an air-borne device, comprising: generating, with a laser source, a plurality of pulsed signals comprising pulse repetition interval information, wherein the pulse repetition interval information is transmitted in a pattern;guiding the air-borne device, with a controller on the air-borne device using the pulse repetition interval information in the plurality of pulsed signals and vertical reference information from a laser range finder located on the air-borne device;detecting, with a control receiver comprising a digital light processing mirror array, the plurality of pulsed signals returned by a retroreflector located on the munition using a plurality of frames, wherein the plurality of pulsed signals returned by a retroreflector comprises azimuth and elevation information of the air-borne device; andupdating the pattern of the plurality of pulsed signals to include the azimuth and elevation information of the air-borne device, thereby guiding the air-borne device. 8. The digital light processing method of claim 7, wherein the laser source is a 1.57 μm micro laser. 9. The digital light processing method of claim 7, wherein the azimuth and elevation information are coded separately. 10. The digital light processing method of claim 7, wherein the laser range finder comprises two or more avalanche photodiodes. 11. The guidance system of claim 1, wherein the system has a resolution of about ±6 degrees. 12. The guidance system of claim 1, wherein the system has an accuracy of less than 10 m. 13. The digital light processing method of claim 10, wherein the laser range one of the two or more avalanche photodiodes is polarized and another of the two or more photodiodes is non-polarized to establish a vertical reference. 14. The digital light processing method of claim 7, wherein the plurality of frames is at least four frames and results in a resolution of about ±6 degrees. 15. The digital light processing method of claim 7, wherein the detection of the air-borne device by the receiver has an accuracy of less than 10 m. 16. An air-borne device guidance system comprising: a laser source configured to generate a plurality of pulsed signals using pulse repetition interval information comprising azimuth and elevation information for the air-borne device;a control receiver comprising: a digital light processing mirror array configured to detect a plurality of reflected pulsed signals returned by a retroreflector located on the air-borne device; anda processor for processing the azimuth and elevation information detected by the control receiver;a common housing for the control receiver and the laser source;a laser range finder located on the air-borne device comprising a first PIN detector and a second PIN detector, where the first PIN detector is polarized and the second PIN detector is non-polarized to establish a vertical reference for the air-borne device; andan air-borne controller configured to guide the air-borne device using the azimuth, elevation, and vertical reference information. 17. The air-borne device guidance system of claim 16, wherein the processing of the azimuth and elevation information for the air-borne device detected by the digital light processing mirror array utilizes a plurality of frames. 18. The air-borne device guidance system of claim 17, wherein the plurality of frames is at least four frames and results in a resolution of about ±6 degrees. 19. The air-borne device guidance system of claim 16, wherein the detection of the air-borne device by the receiver has an accuracy of less than 10 m.
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이 특허에 인용된 특허 (5)
Romer Rudolf (Kaarst DEX) Wollmann Gerd (Oberhausen DEX) Misoph Helmut (Lauf a.d. Pegnitz DEX), Apparatus for flight path correction of flying bodies.
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