Long cavity laser sensor for large FOV auto-tracking
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01S-007/48
H01S-003/13
G01S-017/58
H01S-003/139
G01S-017/42
G01S-007/481
G01S-007/491
G01S-007/51
출원번호
US-0194639
(2011-07-29)
등록번호
US-8923359
(2014-12-30)
발명자
/ 주소
Perryman, Gary Paul
Browder, Mark K.
Wood, James Richard
출원인 / 주소
Lockheed Martin Corporation
대리인 / 주소
Withrow & Terranova, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
38
초록▼
The presently disclosed technique presents laser-based method and apparatus for use in remote sensing. In general, objects within a field of view are lased by a long cavity laser apparatus. Returns are detected, captured, and processed to identify actual objects of interest. These can then be commun
The presently disclosed technique presents laser-based method and apparatus for use in remote sensing. In general, objects within a field of view are lased by a long cavity laser apparatus. Returns are detected, captured, and processed to identify actual objects of interest. These can then be communicated to a user. Over time, the actual objects of interest can be auto-tracked.
대표청구항▼
1. A laser-based, remote sensing apparatus, comprising: a long cavity laser comprising: a gain medium; anda segmented mirror configured to return electro-magnetic radiation (EMR) emitted from the gain medium to the gain medium;wherein the long cavity laser is configured to establish a laser beam of
1. A laser-based, remote sensing apparatus, comprising: a long cavity laser comprising: a gain medium; anda segmented mirror configured to return electro-magnetic radiation (EMR) emitted from the gain medium to the gain medium;wherein the long cavity laser is configured to establish a laser beam of the EMR between the long cavity laser and a first object in a field of view (FOV) in response to a reflection of the EMR from the first object;a detector configured to: receive EMR from the FOV, the EMR including a reflected portion of the laser beam; anddetect the laser beam based on the reflected portion; anda controller coupled to the segmented mirror and the detector, and configured to signal the segmented mirror to alter a reflectivity of a portion of the segmented mirror to thereby change an energy level of the laser beam between the long cavity laser and the first object. 2. The laser-based, remote sensing apparatus of claim 1, wherein the controller is further configured to: determine a first object modulation signature of the first object based on the reflected portion; andidentify the first object based on a comparison of the first object modulation signature to a plurality of modulation signatures. 3. The laser-based, remote sensing apparatus of claim 2, wherein the first object modulation signature is determined by a time series analysis of the reflected portion. 4. The laser-based, remote sensing apparatus of claim 1, wherein the detector comprises a focal plane array. 5. The laser-based, remote sensing apparatus of claim 1, wherein the detector comprises a two-dimensional array of pixels. 6. The laser-based, remote sensing apparatus of claim 1, wherein the controller is further configured to: determine, based on the reflected portion, a location of the first object within the FOV; andoverlay the location of the first object on a display of the FOV. 7. The laser-based, remote sensing apparatus of claim 1, wherein the controller is configured to aurally communicate a bearing from the apparatus to the first object. 8. A method comprising: establishing, by a long cavity laser comprising a gain medium and a segmented mirror that is configured to return electro-magnetic radiation (EMR) emitted from the gain medium to the gain medium, a laser beam of the EMR between the long cavity and a first object in a field of view (FOV) in response to a reflection of the EMR from the first object;receiving EMR from the FOV, the EMR including a reflected portion of the laser beam;detecting the laser beam based on the reflected portion; andsignaling the segmented mirror to alter a reflectivity of a portion of the segmented mirror to thereby change an energy level of the laser beam between the long cavity laser and the first object. 9. The method of claim 8, further comprising: determining a first object modulation signature of the first object based on the reflected portion; andidentifying the first object based on a comparison of the first object modulation signature to a plurality of modulation signatures. 10. The method of claim 9, wherein determining the first object modulation signature comprises determining the first object modulation signature by a time series analysis of the reflected portion. 11. The method of claim 8, further comprising: determining, based on the reflected portion, a location of the first object within the FOV; andoverlaying the location of the first object on a display of the FOV. 12. The method of claim 8, further comprising aurally communicating a bearing from the the long cavity laser to the first object. 13. The laser-based, remote sensing apparatus of claim 1, wherein the long cavity laser is further configured to establish an additional laser beam of the EMR between the long cavity laser and a second object in the FOV in response to a reflection of the EMR from the second object. 14. The laser-based, remote sensing apparatus of claim 13, wherein the detector is further configured to detect the additional laser beam based on a reflected portion of the additional laser beam. 15. The laser-based, remote sensing apparatus of claim 1, wherein the detector is further configured to: determine, based on the reflected portion, a first location of the first object within the FOV at a first time; anddetermine, based on the reflected portion, a second location of the first object within the FOV at a second time, wherein the second location differs from the first location. 16. The laser-based, remote sensing apparatus of claim 1, wherein the detector comprises an array of pixels, and wherein the detector is further configured to: determine, based on the reflected portion, a first location of the first object within the FOV at a first time based on a location of the reflected portion on the array of pixels; andtrack a change of location of the first object from the first location to a second location based on a change of location of the reflected portion on the array of pixels. 17. A laser-based detection system, comprising: a long cavity laser comprising: a gain medium; anda segmented mirror configured to return electro-magnetic radiation (EMR) emitted from the gain medium to the gain medium;wherein the long cavity laser is configured to establish a laser beam of the EMR between the long cavity laser and an object in a field of view (FOV) in response to a reflection of the EMR from the object;a detector comprising an array of pixels, and configured to: receive EMR from the FOV, the EMR including a reflected portion of the laser beam; anddetect the laser beam based on the reflected portion; anda controller coupled to the detector and configured to determine a location of the object in the FOV based on a location of the reflected portion on the array of pixels.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (38)
O\Meara Thomas R. (Malibu CA), Adaptive imaging telescope with linear sensing and movable mirror phase shifting.
Sprangle, Phillip A; Penano, Joseph R; Hafizi, Bahman; Ting, Antonio C; Fischer, Richard P., Apparatus for incoherent combining of high power lasers for long-range directed-energy applications.
King, William B.; Chen, Chungte W.; Byren, Robert W.; McKearn, Chaunchy F., Beam director and control system for a high energy laser within a conformal window.
Johnson William M. (Sudbury MA) Andrews Lewis R. (Beverly MA) Bernardon Edward (Cambridge MA), Combination laser designator and boresighter system for a high-energy laser.
Henderson Sammy W. (7770 Durham Way Boulder CO 80301) Hale Charley P. (123 Mineola Boulder CO 80303) Huffaker R. Milton (229 Mountain Meadows Rd. Boulder CO 80302) Magee James R. (1821 22nd St. ; #10, Eyesafe coherent laser radar for velocity and position measurements.
Hopwood,Francis W.; Glezen,John H.; Fitelson,Michael M.; Gray,George R.; Patrick,Christopher M., Generation of wideband high power coherent optical radar signals.
Biswas, Abhijit; Sanji, Babak; Wright, Malcolm W.; Page, Norman Alan, Method and apparatus for a multibeam beacon laser assembly for optical communications.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.