[특허]All DOP GPS optimization

[미국특허] All DOP GPS optimization 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/00
출원번호	US-0009093 (1993-01-26)
발명자 / 주소	Maki Stanley C. (4966 - A Waring Rd. San Diego CA 92120-2734)
인용정보	피인용 횟수 : 60 인용 특허 : 0

초록 ▼

The all DOP GPS optimization utilizes special dilution of precision (DOP) minimization measures to select the constellation of four (and fewer, with constraints) GPS satellites to form the navigation solution with optimized accuracy in the desired orthogonal component(s) of position and velocity, and the desired component of time. Furthermore, the all DOP GPS optimization utilizes multiple navigation solutions of the top ranked satellite constellations of four (and fewer) GPS satellites selected by special DOP(s) (and standard DOP(s)) minimization(s), by weighting these multiple navigation solution estimates for a component(s) of interest with the inverse of the associated DOP, and then solving for the least squares solution of these multiple navigation solution estimates. Implementation of all DOP GPS optimization is accomplished with addition of microprocessor(s), RAM memory, and ROM memory to the general processing section of a GPS receiver to implement the special DOP (and standard DOP) algorithms, the multiple parallel running navigation solutions, and the least squares solution of the the multiple navigation solution estimates by increased processing thruput, and added data, constants, and instructions storage.

대표청구항 ▼

An improved method of navigating an object using GPS (Global Positioning System) comprising: determining the number of GPS satellites from which the object may receive radio signals; selecting a first constellation of four GPS satellites from such number on the basis of minimizing the dilution of precision for a standard navigation solution; using the radio signals received from such constellation to compute a standard navigation solution that minimizes the dilution of precision and which includes height, latitude, longitude, time and velocity components; selecting at least a second constellation of four GPS satellites on the basis of minimizing the dilution of precision for a special navigation solution that includes height, latitude, longitude, time and velocity components, and using the radio signals selected from the second constellation in which the dilution of precision is minimized for one such component to compute a special navigation solution which includes height, latitude, longitude, time and velocity components.

이 특허를 인용한 특허 (60) 인용/피인용 타임라인 분석

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Holland,Bryan; Brisson,Timothy A., Locator system for processing commercial 911 requests.
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Krasner Norman F., Method and apparatus for adaptively processing GPS signals in a GPS receiver.
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Awata,Hideki, Method and apparatus for computing position and velocity of receiver using independently-derived sets of satellites.
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Krasner Norman F., Method and apparatus for determining the location of an object which may have an obstructed view of the sky.
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Sheynblat, Leonid; Krasner, Norman F., Method and apparatus for providing location-based information via a computer network.
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Normark, Per-Ludvig; Mitelman, Alexander Michael, Method and spread spectrum software receiver for satellite navigation.
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Sheynblat Leonid, Method and system for using altitude information in a satellite positioning system.
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Sheynblat Leonid, Method and system for using altitude information in a satellite positioning system.
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Mark I. Zhodzishsky RU; Peter P. Zagnetov RU; Javad Ashjaee, Methods and apparatuses for reducing errors in the measurement of the coordinates and time offset in satellite positioning system receivers.
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Sheynblat, Leonid, Methods and apparatuses for using assistance data relating to satellite position systems.
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Osborn, William R.; Bloebaum, Leland S., Methods, systems and computer program products for providing location determination information to an assisted location service.
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Cisneros Joseph S. ; Kelley David C. ; Kiang Michael ; Greenbaum Louis A., Navigation and positioning system and method using uncoordinated beacon signals in conjunction with an absolute position.
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Riley, Wyatt Thomas; Moeglein, Mark Leo; Biacs, Zoltan F., Selecting a position fix to determine the location of a wireless communication device.
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Jung, Mun Ho; Yi, Dong Hoon, Self-tuning apparatus of vehicle speed pulse coefficient and method thereof.
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Heinrich, Richard E., System and mehtod for providing space-based precision position correlations for promoting improved availability, accuracy and integrity.
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Heinrich, Richard E., System and method for providing space-based precision position correlations for promoting improved availability, accuracy and integrity.
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Schipper John F., Utilization of exact solutions of the pseudorange equations.
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Holland, Bryan, Wireless remote location system and method.
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Holland,Bryan, Wireless remote location system and method.
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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] All DOP GPS optimization 원문보기