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Research on Error of Accuracy Ranging between Formation Flying Small Satellites

Author: GuoJunYan
Tutor: LuZhengWu；LiHaiBin
School: Yanshan University
Course: Control Theory and Control Engineering
Keywords: Formation of small satellites Relative Ranging Sources of error Error compensation Accuracy
CLC: P228.4
Type: Master's thesis
Year: 2010
Downloads: 97
Quote: 0
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Abstract


With tiny satellite application technology continues to evolve, even by many pieces of 10 a few tiny satellite formation flying small satellite constellation widespread attention, play an increasingly important role in the fields of communications, remote sensing, navigation and electronic reconnaissance. Satellite Relative ranging and the establishment of information exchange link cooperative control of the completion of the formation flying small satellite constellation independent survival and the key to self-management capabilities to improve the formation of small satellites. Therefore, the formation of small satellite precision ranging error research has important scientific significance and application value. The basis of the existing literature, did some research on the impact Star precise range of error sources and corresponding compensation measures. This paper studies the basic principles of accurate ranging between the formation of small satellites. Theoretical analysis and ranging analysis of the various sources of error system, satellite clock error system error, temperature error, and relativistic error, how random error path error, sampling error and tracking error. Then, the study of a variety of the nature of the error and its impact on the positioning accuracy, as well as measures to weaken or eliminate the impact of these errors, in order to achieve the precise range of the formation of small satellites cooperative control, navigation system, autonomous existence, self-management requirements. After research ranging theory to determine the source of error, then the system impact study of the various sources of error is a major problem, some error such as pseudo code phase error and carrier loop tracking error after analysis calculated specific values, with maximum fuzzy compared to the distance, there is no such error is allowed, not enough to affect the correct value of the pseudo-code ranging solution carrier phase ambiguity. So that you do not have to be corrected. The accurate analysis error compensation premise, but also to choose a suitable compensation package premise. After studies the the measurement accuracy influential sources of error, and compensation measures proposed the temperature error coefficient determination methods and inter-satellite relative time comparison methods ranging. Temperature error coefficient measurement method to get it each other between the two satellites, directly computing the coefficient of temperature error of the satellite transmitting equipment and receiving equipment, and at the same time overcome the satellite observations such as the impact of the error on the estimation results between; time comparison method is based on TWSTT and spontaneous self-closing theory contrast, in the case of error unknown device, and the existence of a bell, to achieve relatively ranging between Star, at the same time eliminates the satellite clock error, the transmitter and the receiver time delay, more path error, observation error error.

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Geodesy > Satellite geodesy and space geodesy > Global Positioning System (GPS)
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