Cooperative acquisition algorithms for new GNSS signals

Shuai Han; Qing Wan; Wen-jing Wang; Wei-xiao Meng; Yi Zhang

doi:10.1117/12.855408

2 April 2010 Cooperative acquisition algorithms for new GNSS signals

Shuai Han, Qing Wan, Wen-jing Wang, Wei-xiao Meng, Yi Zhang

Proceedings Volume 7651, International Conference on Space Information Technology 2009; 76512C (2010) https://doi.org/10.1117/12.855408
Event: International Conference on Space Information Technology 2009, 2009, Beijing, China

Abstract

New signal patterns and modulations are adopted in the modern GNSS and exhibit some innovative characteristics. Especially, the presence of two components - data and pilot in one composite signal is a significant feature and has provided breakthrough to improve the performance of the acquisition block. In this paper, two cooperative acquisition algorithms, namely non-coherent and coherent cooperation method, are improved and implemented in frequency domain, although the basic principle is from the literature. For each acquisition scheme, the detection probability and false alarm probability, which is known as the Receiver Operating Characteristic, are analyzed and compared based on the maximum search strategy from a statistical view. And then, theoretical results are demonstrated by Monte Carlo simulations with simplified Galileo E1 signals. The simulation results indicate the feasibility of algorithms and suggest that the coherent cooperation algorithm outperforms the non-coherent cooperation method in the effectiveness.

Citation Download Citation

Shuai Han, Qing Wan, Wen-jing Wang, Wei-xiao Meng, and Yi Zhang "Cooperative acquisition algorithms for new GNSS signals", Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76512C (2 April 2010); https://doi.org/10.1117/12.855408

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