[특허]Map-aided navigation system employing TERCOM-SITAN signal processing

[미국특허] Map-aided navigation system employing TERCOM-SITAN signal processing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/50
출원번호	US-0864843 (1986-05-20)
발명자 / 주소	Baird Charles A. (Melbourne Beach FL)
출원인 / 주소	Harris Corp. (Melbourne FL 02)
인용정보	피인용 횟수 : 26 인용 특허 : 2

초록 ▼

A navigation system contains a modified Kalman filter processor which continuously receives both TERCOM and SITAN control information so that the operation of the SITAN processing is effectively continuously optimized. The system employs an over flight terrain data storage map to which position and altitude signals are coupled for extracting both elevation and slope information from the stored map. The extracted elevation and slope data are coupled, together with the outputs of baromatic and radar altimeter sensors and estimated altitude and position data outputs from the navigation unit, to a correlation/modified Kalman filter processor. Elevation profile data accessed from the map is correlated with elevation profile signals derived from aircraft on-board sensors, in order to find that flight path on the stored map, parallel to, but displaced from the flight path indicated by the navigation unit, for which successive elevation data values correspond most closely to the elevations measured by the altimeter sensors. In this correlation processing operation the “most likely”path is selected by defining a performance index associated with each path and selecting that path with the best performance index. The result of the correlation processing provides a position fix to be combined with the position estimates in the modified Kalman filter.

대표청구항 ▼

For use with a vehicle guidance system in which data representative of an estimate of the location of said vehicle relative to terrain over which said vehicle is travelling is produced by a navigation system, an arrangement for enhancing the accuracy of said estimate comprising: first means, responsive to said location estimate representative data, for deriving from a terrain map data base first signals representative of the slope of the terrain at the estimated location of said vehicle and producing, in response thereto, second signals representative of said location estimate; second means, responsive to said location estimate representative data, for deriving from said terrain map data base third signals representative of the elevation profile of the terrain for successively estimated locations of said vehicle and processing said third signals to produce fourth signals representative of the geographic position of said vehicle with respect to said terrain and an estimate of the error in said fourth signals; and third means for coupling said fourth signals to said first means on an effectively continuous basis and causing said first means to produce said second signals in response to said first and fourth signals.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

Chan Luen C. (Indian Harbor Beach FL) Snyder Franklin B. (Palm Bay FL), System for correlation and recognition of terrain elevation.
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Webber William F. (Dallas TX), Vehicle guidance system.
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이 특허를 인용한 특허 (26) 인용/피인용 타임라인 분석

Greenfeld, Israel; Yavin, Zvi; Uhl, Bernd, Airborne reconnaissance system.
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Morici Martin M., Aircraft position validation using radar and digital terrain elevation database.
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Frederick Philip R., Automatic horizontal and vertical scanning radar with terrain display.
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Frederick Philip R., Automatic horizontal and vertical scanning radar with terrain display.
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Watt John D. ; McMillen Richard E. ; Salzman Gerald E. ; Orsborn Jesse H. ; Faivre Stephen M. ; Morrow James G. ; Vogel Peter J., Control of vehicular systems in response to anticipated conditions predicted using predetermined geo-referenced maps.
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Naimer, Hubert L.; Krohn, Patrick G.; Glaze, Patrick K., Flight plan intent alert system and method.
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Kumar Rajendra, Kalman filter ionospheric delay estimator.
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Sabatino, Anthony E.; Romero, Leroy G.; Pyne, Michael D.; Martinez, Steven D.; Cox, Paul A., Method and system for terrain aided navigation.
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Louis, Christian; Reynaud, Sébastien, Method for calculating a navigation phase in a navigation system involving terrain correlation.
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Casino, Roy; Herbst, James; Herbst, Michele, Method for collecting altitude-related data along roads.
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Hager,James R.; Almsted,Larry D., Methods and systems for enhancing accuracy of terrain aided navigation systems.
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Umansky, Samuil R.; Sheinerman, Kira S.; Tsivinsky, Vladimir, Methods of using miRNA from bodily fluids for early detection and monitoring of mild cognitive impairment (MCI) and Alzheimer's disease (AD).
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Louis, Christian; Reynaud, Sébastien, Navigation filter for a navigation system using terrain correlation.
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Doerry, Armin W.; Marquette, Brandeis, Navigator alignment using radar scan.
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McBride Kenneth W., Optimization of survey coordinate transformations.
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Soehren, Wayne A., Personal navigation device for use with portable device.
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Soehren,Wayne A.; Bye,Charles T.; Hawkinson,Wesley J., Personal navigation using terrain-correlation and/or signal-of-opportunity information.
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Vincent, Robert S., Spatial referenced photographic system with navigation arrangement.
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Yamamoto,Hiromichi; Homma,Kohzo; Kitagata,Satoru, System and method of presenting altitude visibility information provision system utilizing satellite image, and system and method of recognizing flight obstacle.
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Hager, James R.; Almsted, Larry D.; Jicha, Thomas, Systems and methods for target location.
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Soehren, Wayne A., Telephone or other portable device with inertial sensor.
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Woollard, Bruce R.; Owens, Mark A., Terrain aided navigation using multi-channel monopulse radar imaging.
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Baird Charles A. (Melbourne Beach FL) Collins Noel (Melbourne Beach FL), Terrain aided passive range estimation.
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McGuffin John T. (Albuquerque NM), Terrain referenced navigation electromagnetic-gravitational correlation.
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McBurney Paul ; Braisted Paul, Use of an altitude sensor to augment availability of GPS location fixes.
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Isert, Carsten; Tava, Marcello; Gerstberger, Christian, User device and system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Map-aided navigation system employing TERCOM-SITAN signal processing 원문보기