一种基于软件的GPS信号频域并行采集算法

2010 International Conference on Anti-Counterfeiting, Security and Identification Pub Date : 2010-07-18 DOI:10.1109/ICASID.2010.5551340

Yuying Zheng

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引用次数: 13

摘要

信号搜索与采集是GPS软件接收机的重要组成部分，直接影响到GPS软件接收机的工作性能。本文讨论了一种频域并行采集算法。首先对其理论模型进行了分析，然后在Matlab中进行了实现，成功地计算出了GPS信号中的载波频率和码相。讨论了传统的时域串行搜索与频域并行获取方法的比较。实验结果表明，该方法在计算量和精度上都有较好的性能。

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A software-based frequency domain parallel acquisition algorithm for GPS signal

Signal search and acquisition is an important part of GPS software receiver and makes an influence on the working performance of it. This paper discusses a frequency domain parallel acquisition algorithm. Its theoretic model is first analyzed and then implemented in Matlab, in which the carrier frequencies and code phases in GPS signal can be successfully calculated. Comparison between the conventional time domain serial search and proposed frequency domain parallel acquisition method is discussed. It is verified that the proposed method has better performance both in computation and accuracy.

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来源期刊

2010 International Conference on Anti-Counterfeiting, Security and Identification

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