摘要

Integration of US global positioning system with other existing global navigation satellite system such as recently-augmented Russian Global Navigation Satellite System (GLONASS) suffers calculation time cost in software platforms. Acquisition stage as the first part of a software receiver is a challenging part for increasing the speed. In this paper, a rapid GLONASS acquisition algorithm is proposed using multi-satellite search strategy. The proposed algorithm divides satellites in multi-groups and generates a local replica for them. Analyzing of the received signal and this replica correlation will show whether this group has in-view satellites or not. Simulations on real data base created using an AAA GLONASS receiver prove the positive effect of this algorithm in speeding up the receiver acquisition to about 2.32 with least misdetection probability.

  • 出版日期2015-10

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