| 弱信号下软件GPS接收机全比特捕获算法 |
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| 引用本文： | 姜冰心,张中兆,孟维晓.弱信号下软件GPS接收机全比特捕获算法[J].电子技术应用,2008,34(9). |
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| 作者姓名： | 姜冰心 张中兆 孟维晓 |
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| 作者单位： | 哈尔滨工业大学,通信技术研究所,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 针对弱信号分析了 GPS 捕获阶段采用的相干、非相干、差分相干累积算法,提出了全比特捕获算法,并给出完整的捕获实现方案。通过算法仿真实验验证了算法的有效性。结果表明此方案能有效改善捕获性能,提高捕获效率。
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| 关 键 词： | GPS 接收机 捕获方法 全比特算法 弱信号 均衡相关 |
Whole bit acquisition algorithm in software GPS receiver in weak signal environment |
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| JIANG Bing Xin,ZHANG Zhong Zhao,MENG Wei Xiao.Whole bit acquisition algorithm in software GPS receiver in weak signal environment[J].Application of Electronic Technique,2008,34(9). |
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| Authors: | JIANG Bing Xin ZHANG Zhong Zhao MENG Wei Xiao |
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| Abstract: | The coherent cumulative algorithm,non-coherent cumulative algorithm and differential coherent cumulative algorithm in weak GPS signal acquisition phase are analyzed,and gives an integral acquisition scheme based on whole bit acquisition algo- rithm.The effectiveness of the algorithm has been proved by software simulation experiments.The results show that this scheme is able to improve acquisition performance effectively which enhances the acquisition efficiency. |
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| Keywords: | GPS receiver acquisition method whole bit algorithm weak signal averaging correlation |
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