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PMF-FFT

于 2017-01-12 发布文件大小:4898KB

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一些PMF-FFT GPS信号捕获的有关论文(Some PMF-FFT signal acquisition related papers)

文件列表：

PMF_FFT的PN码捕获方法分析及仿真_齐华 (1).pdf,639362,2017-01-09
北斗系统B1频点信号可靠捕获方法研究_张冲.pdf,613659,2016-12-29
基于PMF_FFT改进的捕获方法_徐宁波.pdf,1178755,2016-12-28
基于PMF_FFT的高动态长伪码捕获实现_孙大元.pdf,1355654,2016-12-28
基于PMF_FFT的高精度伪码捕获算法_边超磊.pdf,405795,2016-12-28
基于PMF与FFT的扩频伪码快速捕获方法_许大华.pdf,574999,2017-01-09
基于部分匹配滤波器和FFT的信号捕获方案的设计与实现_英文_何露.pdf,449849,2017-01-09
部分匹配滤波器在高动态卫导信号快捕的应用_皮世杰.pdf,743535,2017-01-09

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研究了一种数字中频 GPS 信号生成方法。给出了数字中频信号数学模型，模型考虑了各种因素对信号的影响。通过导航电文分析，提出信号传播时延、多普勒频移以及信号入射方向的估计方法。给出了中频信号产生的流程，对其中时延的设置，信号的上变频、信号幅度设置以及方向信息的导入进行了阐述。对所生成的信号模型进行了仿真分析，给出了信号产生各个阶段的频谱，对所生成的信号进行了相关捕获。仿真结果表明频谱特征符合理论分析，能够被捕获并找出信号时延从而实现定位。证明该信号模型能作为信号源应用于 GPS接收机研制中。(】The paper discusses a digital IF GPS signal generation method, gives the mathematic model of digital IF signal. This mathematic model takes into account the influence of various factors. Based on analysis of the navigation data, the method to estimate signal propagation time, Doppler frequency shift and the coming angle of signal is proposed. The flow to generate IF signal is given, in which the setting of time delay, the up-frequency conversion, the setting of signal magnitude and the introduction of direction information are expounded. The signal generation model is simulated and analyzed, the spectrum of signal in each stage given, and the correlation capture of the generated signal also done. Simulation indicates that the spectrum is in accord with theoretical analysis the signal could be captured, thus find the time delay, accomplish the orientation. The signal model is proved applicable in the research and development of GPS receiver.)

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