The author addresses the problem of selecting an optimum n-satellite subset from m visible satellites (m>n). The optimality criteria is minimum geometric dilution of precision (GDOP) subject to the integrity constraint. To solve this problem an efficient algorithm is developed using a revolving door method and matrix inversion lemma. The revolving door method generates each n-subset from its immediate predecessor by deleting some single element and adjoining some other single element. Then using the matrix inversion lemma, the GDOP for each new n-subset is recursively calculated from the incoming and outgoing elements. The matrix inversion lemma is also used to check the satisfaction of the integrity constraint.
Recursive method for optimum GPS satellite selection
IEEE Transactions on Aerospace and Electronic Systems ; 37 , 2 ; 751-754
01.04.2001
112964 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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