System and method for a terrain database and/or position validation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01S-013/08
G01S-013/93
출원번호
UP-0900002
(2007-09-06)
등록번호
US-7859449
(2011-02-24)
발명자
/ 주소
Woodell, Daniel L.
Jinkins, Richard D.
Meyer, Nathanael A.
Rademaker, Richard M.
Dickerson, Charles J.
출원인 / 주소
Rockwell Collins, Inc.
대리인 / 주소
Evans, Matthew J.
인용정보
피인용 횟수 :
29인용 특허 :
100
초록▼
An aircraft weather radar system can be used with a terrain avoidance system. The aircraft weather radar system is coupled to an antenna. A processor receives radar returns received by the antenna. The processor determines terrain elevation estimates for use with the terrain avoidance system from th
An aircraft weather radar system can be used with a terrain avoidance system. The aircraft weather radar system is coupled to an antenna. A processor receives radar returns received by the antenna. The processor determines terrain elevation estimates for use with the terrain avoidance system from the radar returns. The terrain elevation estimates are compared to stored terrain elevation data used with the terrain avoidance system to verify position or to check the integrity of the stored elevation data. The processor can be part of a terrain avoidance system, a weather radar system, a navigation system, or can be a standalone system.
대표청구항▼
What is claimed is: 1. A method of using a terrain avoidance system on an aircraft including a weather radar system, the method comprising: generating estimates representing terrain elevation using the weather radar system; receiving data from a terrain elevation database; and providing a warning i
What is claimed is: 1. A method of using a terrain avoidance system on an aircraft including a weather radar system, the method comprising: generating estimates representing terrain elevation using the weather radar system; receiving data from a terrain elevation database; and providing a warning if the estimates and the data indicate a position error or an error in the estimates or the data. 2. The method of claim 1, wherein the estimates are determined using multiple scan techniques. 3. The method of claim 1, wherein the power ratio associated with weather radar returns is used to determine the estimates. 4. The method of claim 3, wherein the weather radar returns are from multiple beams swept in azimuth and with different beam elevations. 5. The method of claim 1 wherein the phase difference of two or more beams is used to determine the estimates. 6. The method of claim 1, wherein the warning indicates a position error. 7. A method of using a terrain avoidance system on an aircraft including a weather radar system, the method comprising: generating estimates representing terrain elevation using the weather radar system; receiving data from a terrain elevation database; and providing a warning if the estimates and the data indicate a position error or an error in the estimates or the data, wherein the warning is provided in response to an algorithm for comparing radar shadows associated with the estimates to the data. 8. The method of claim 1, wherein the warning is provided in response to a hill climbing algorithm. 9. An aircraft weather radar system for use with a terrain avoidance system, the weather radar system being coupled to an antenna, the weather radar system comprising: a processor for receiving radar returns received by the antenna, the processor determining terrain elevation data for use with the terrain avoidance system from the radar returns, the terrain elevation data being compared to stored data used with the terrain avoidance system to verify position or to check the integrity of the stored data. 10. The system of claim 9, wherein the position is derived from global positioning system (GPS) signals, or other position determining means and the position is compared to a position determined from the terrain data. 11. The system of claim 9, wherein the returns include weather radar returns, wherein the processor receives the weather radar returns associated with weather, wherein the processor removes the weather radar returns before determining the terrain elevation data. 12. The system of claim 9, wherein the weather radar system is a multi-scan system. 13. The system of claim 9, wherein a warning is provided when the terrain elevation data does not match the stored data. 14. An aircraft weather radar system for use with a terrain avoidance system, the weather radar system being coupled to an antenna, the weather radar system comprising: a processor for receiving radar returns received by the antenna, the processor determining terrain elevation data for use with the terrain avoidance system from the radar returns, the terrain elevation data being compared to stored data used with the terrain avoidance system to verify position or to check the integrity of the stored data, wherein the terrain elevation data is related to radar shadows. 15. The system of claim 9, wherein the processor matches the terrain elevation data to the stored data using a fourth order algorithm, the fourth order algorithm being executed by the processor. 16. The system of claim 15, wherein the fourth order algorithm matches the stored data and the terrain elevation data with respect to a left, right orientation, an up and a down orientation, a rotationally clockwise, rotationally counterclockwise orientation, wherein the processor matches the terrain elevation data to the stored data. 17. The system of claim 14, wherein the processor executes a hill climbing algorithm to match the terrain elevator data to the stored data. 18. An apparatus for an aircraft terrain avoidance system, the apparatus comprising: a first input for receiving terrain estimates derived from a weather radar system; a second input for receiving terrain data stored onboard the aircraft; and a means for comparing the terrain elevation estimates derived from a weather radar system and the terrain elevation data. 19. The apparatus of claim 18, wherein the first input is within an onboard weather radar system. 20. The apparatus of claim 18, wherein a fourth order hill climbing algorithm is used by the means for comparing.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (100)
Sternowski,Robert H., Adaptive interference cancellation receiving system using synthesizer phase accumulation.
Barney George M. (Dallas TX) Stickel Bryan A. (Garland TX), Apparatus and method for adjusting set clearance altitude in a terrain following radar system.
Mather, John C.; Conway, Christina M.; West, James B.; Lehtola, Gary E; Wichgers, Joel M., Construction approach for an EMXT-based phased array antenna.
Kronfeld, Kevin M.; Lapis, Mary Beth; Walling, Karen L.; Chackalackal, Mathew S., Method and apparatus for identification of hazards along an intended travel route.
Daniel L. Woodell ; Roy E. Robertson ; Ying C. Lai, Method and system for detecting turbulence with reduced errors resulting from vertical shear components.
Anderson A. Jackson ; Shaver Dennis L. ; Simon Lawrence J. ; Sunlin Richard C., Method for partitioning an integrated ground air traffic management communications system.
West, James B.; Mather, John C.; Landt, Don L., One-dimensional and two-dimensional electronically scanned slotted waveguide antennas using tunable band gap surfaces.
McCusker, Patrick Dennis; Rademaker, Richard Marcel; Jinkins, Richard D.; Wichgers, Joel Michael; Woodell, Daniel L., System and method for displaying radar-estimated terrain.
Wichgers, Joel M.; Jinkins, Richard D.; McCusker, Patrick D.; Rademaker, Richard M.; Woodell, Daniel L., Terrain awareness system with false alert suppression.
Wallace E. Kelly ; Timothy W. Rand ; Serdar Uckun ; Corinne C. Ruokangas, Weather radar system integrating ground-based weather radar with on-board aircraft weather radar.
McCusker, Patrick D.; Jinkins, Richard D.; Rademaker, Richard M., Enhanced flight vision system and method with radar sensing and pilot monitoring display.
Bourret, Thierry; Ahualle Horimoto, Kenji, Method and device for determining a linear terrain profile along a lateral approach trajectory of an airport.
Bourret, Thierry; Ahualle Horimoto, Kenji, Method and device for vertically guiding an aircraft during an approach of a runway along a lateral approach trajectory.
Woodell, Daniel L.; Jinkins, Richard D.; Rademaker, Richard M.; McCusker, Patrick D., System and method for aircraft altitude measurement using radar and known runway position.
Jinkins, Richard D.; Gavrilets, Vladislav; Rademaker, Richard M.; Woodell, Daniel L.; Jourdan, Damien B.; Doty, James H., System and method for doppler aided navigation using weather radar.
Wood, Robert B.; Tiana, Carlo L.; Kowash, Nathaniel S.; Jinkins, Richard D.; Rademaker, Richard M., System for and method of radar data processing for low visibility landing applications.
Jinkins, Richard D.; Rademaker, Richard M.; Woodell, Daniel L.; Doty, James H.; Kerley, Keith L.; Young, Jr., James Alva; Young, Shih-Yih, Voting system and method using doppler aided navigation.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.