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不需辅助信息的室内GPS信号捕获算法 被引量:4

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摘要 弱GPS信号的捕获要花费大量的时间。减小捕获时间能改善GPS接收机冷热启性能,同时保证送给跟踪程序的捕获结果是准确、可靠、及时的。差分相干的联合检测算法可以不需要辅助数据,在200ms内捕获到-177dBW的GPS信号,且避免了FFT操作。提出一种基于差分相干的自适应门限捕获算法,其接收门限能根据接收卫星信号功率进行自适应调整,且满足系统设定的误捕率。
出处 《电子技术应用》 北大核心 2006年第9期130-132,共3页 Application of Electronic Technique
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参考文献8

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同被引文献30

  • 1许诺,陈培,王云,李健,巴晓辉,陈杰.匹配滤波器组与FFT结合的伪码快速捕获方案研究[J].微电子学与计算机,2009,26(2):84-88. 被引量:7
  • 2李铁,孙贵新.“伽利略”卫星导航系统综述[J].国外电子测量技术,2005,24(11):5-8. 被引量:9
  • 3刘晓莉,李云荣.一种基于FFT的高动态GPS信号快速捕获方法[J].系统仿真学报,2007,19(10):2151-2155. 被引量:16
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