GPS attitude determination system and method using optimal search space identification for integer cycle ambiguity resolution
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United States of America Patent
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Jul 3, 2001
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N/A
app pub date -
Sep 16, 1998
filing date -
Sep 16, 1998
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Abstract
Disclosed are an integer cycle ambiguity resolution method, and attitude determining systems and apparatus using the same. In the method of determining a solution to an integer cycle ambiguity, four primary satellites out of a GPS satellite constellation are selected such that a number of false solutions for the integer cycle ambiguity is optimized. Next, a search space is defined such that the probability of rejecting a correct solution for the integer cycle ambiguity is guaranteed-to be below a predetermined value. Next, intervals in the defined search space are searched to determine a solution to the integer cycle ambiguity. Then, attitude is determined as a function of the determined solution to the integer cycle ambiguity.
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