基于块累加和频率补偿的GPS快速捕获算法

Fast GPS acquisition algorithm based on the block accumulation and frequency compensation

本文采用了一种新的基于FFT的GPS弱信号快速捕获算法,研究了该算法的理论性能,利用实测GPS采集数据对算法的实际捕获性能进行了仿真验证,对比分析了新的算法相对传统循环相关算法的性能优势。

A new fast FFT-based GPS weak signal acquisition algorithm aimed to improve the weak signal acquisition performance is proposed in this paper. Both the theoretical analysis of the performance of the algorithm and the simulation of measured GPS acquisition data prove the actual capture performance of the algorithm. The performance advantage of the new algorithm over the traditional circular correlation algorithm is also analysed.