최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0166191 (2016-05-26) |
등록번호 | US-10228460 (2019-03-12) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 396 |
A weather radar system can be used as an enhanced vision sensor for providing an image on an electronic display during aircraft surface operations. The weather radar sensed image is representative of the external surroundings of the airport surface environment associated with radar returns received
A weather radar system can be used as an enhanced vision sensor for providing an image on an electronic display during aircraft surface operations. The weather radar sensed image is representative of the external surroundings of the airport surface environment associated with radar returns received by the weather radar system. The radar returns are processed as a collection of radar measurements to determine a high resolution angle and range to a target, using beam sharpening techniques. When the radar image is combined with an image generated from an airport surface database, the combination or comparison of the two independently created images can be used to confirm the integrity of the positioning and attitude source along with the accuracy of the airport surface database.
1. A weather radar system for an aircraft engaged in surface operations, the aircraft comprising aircraft sensors, the weather radar system comprising: an antenna; anda control circuit coupled with the antenna and configured to:provide radar beams via the antenna toward external surroundings associa
1. A weather radar system for an aircraft engaged in surface operations, the aircraft comprising aircraft sensors, the weather radar system comprising: an antenna; anda control circuit coupled with the antenna and configured to:provide radar beams via the antenna toward external surroundings associated with the surface operations;receive radar returns;process data associated with the radar returns to determine location associated with each of the radar returns, wherein the location is determined using an angle and a range, wherein the angle is determined using at least the following parameters: relative change in attitude, a beam sharpening angle, and an antenna scan angle; andprocess the radar returns with their associated location to provide radar image data for provision of a radar image. 2. The weather radar system of claim 1, wherein the control circuit is configured to: determine the relative change in attitude using the aircraft sensors. 3. The weather radar system of claim 2, wherein the radar image is provided using only relative attitude and positioning data sources from the aircraft sensors. 4. The weather radar system of claim 3, wherein the position and attitude of the antenna is changing during the collection of radar return data, the changes of the position and attitude of the antenna are determined using aircraft sensors and radar system sensors, and any position and attitude changes of the antenna are determined relative to the position and attitude of the antenna at a certain point in time. 5. The weather radar system of claim 2, wherein the beam sharpening angle is a radar sensed direction of a radar return with respect to an attitude of the antenna. 6. The weather radar system of claim 5, wherein the beam sharpening angle is generated using a monopulse technique, a sub-aperture radar technique, deconvolution of a beam point spread function, or any combination thereof. 7. The weather radar system of claim 2, wherein the range is the radar sensed distance between the location of the antenna and a location associated with a radar return. 8. The weather radar system of claim 2, wherein the control circuit is configured to provide combined data, the combined data being comprised of surface map data and the data derived from the radar returns for provision of the radar image, the combined data representing a combined image. 9. A method of providing a radar image on an electronic display during surface operations, the method comprising: determining an antenna position,determining an antenna attitude;receiving radar returns from an X-band or C-band aircraft weather radar system;determining a location in an environment of the surface operations associated with each of a plurality of radar returns using the antenna position, the antenna attitude, a beam sharpening angle, and a range;determining an intensity associated with each of a plurality of radar returns; andproviding a radar image on the electronic display, the radar image being derived from the intensity and the location associated with each of the radar returns. 10. The method of claim 9, wherein the X-band or C-band aircraft weather radar system comprises a switched aperture, sequential lobing or monopulse weather radar system, and wherein the radar image is a three dimensional or two dimensional real time image. 11. The method of claim 9, wherein the beam sharpening angle is generated using a monopulse technique, a sub-aperture radar technique, deconvolution of a beam point spread function, or any combination thereof. 12. The method of claim 11, wherein the radar image is combined with a surface map image associated with a surface map database. 13. The method of claim 12, wherein the surface map database is an airport surface map database. 14. The method of claim 9, further comprising: comparing data associated with the radar image to data associated with the surface map image to confirm alignment and colocation of the radar image and the surface map image in order to confirm the integrity of the positioning and attitude sources along with the integrity of features of the surface map database. 15. An enhanced vision system for an aircraft engaged in surface operations, comprising: a weather radar system configured to:generate image data representative of a surface environment associated with the surface operations using radar returns received by the weather radar system, the radar returns being in an X-band or a C-band,process radar returns, wherein each of the radar returns is associated with a location determined using an antenna position, an antenna attitude, a beam sharpening angle, and a range;process intensity and the location associated with the radar returns to provide radar image data, wherein the direction is determined using at least the antenna position and the beam sharpening angle; anda display in communication with the weather radar system and configured to display an image associated with the radar image data. 16. The enhanced vision system of claim 15, wherein the radar image data is combined with surface map image data associated with a surface map database. 17. The enhanced vision system of claim 16, wherein the image data derived from surface map data and the radar image data are compared to determine a mismatch error. 18. The enhanced vision system, of claim 15, wherein the beam sharpening angle is a radar sensed direction of a radar return with respect to the attitude of an antenna. 19. The enhanced vision system of claim 15, wherein the beam sharpening angle is generated using a monopulse technique, a sub-aperture radar technique, deconvolution of a beam point spread function, or any combination thereof. 20. The enhanced vision system of claim 15, wherein the radar image data is compared to surface map image data to check integrity of aircraft location and orientation or integrity of the surface map data.
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