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  • PMF-FFT 算法的多普勒频偏估计精度研究
    针对 pmf-fft 伪码捕获算法在高动态环境下出现的扇贝损失和多普勒频偏估计精度不足的问题,通过对pmf-fft捕获算法的分析,提出pmf-fft和sinc函数内插相结合的捕获算法。通过sinc函数插值对fft后的功率谱最大值进行校正,提高最大幅值,得到了更为精确的多普勒频偏。
  • Table II from Analysis and optimization of PMF-FFT acquisition . . .
    DOI: 10 1109 ICCIS 2011 6070325 Corpus ID: 15044140; Analysis and optimization of PMF-FFT acquisition algorithm for high-dynamic GPS signal @article{Chang2011AnalysisAO, title={Analysis and optimization of PMF-FFT acquisition algorithm for high-dynamic GPS signal}, author={Liu Chang and Zhang Jun and Yanbo Zhu and Pan Qingge}, journal={2011 IEEE 5th International Conference on Cybernetics and
  • 一种改进的PMF-FFT算法及其验证-【维普期刊官网】- 中文期刊服务平台
    摘要 针对硬件资源有限、低信噪比情况下提高pmf-fft算法多普勒频率捕获精度的问题,提出了一种两轮搜索算法。 文中分析了pmf-fft算法的两种固有衰减,对其进行加窗处理以提高捕获增益。通过第一轮捕获得到码相位与粗频率,用同样
  • Practical and Theoretical Tradeoffs of Active Parallel Correlator and . . .
    These implementations apply to acquisition of the GPS precision (P)-code and the course acquisition (C A) code signals [1], as well as the new modernized GPS signals [1,3,4,7] While many receiver search schemes employ an active parallel search implementation, there has been recent interest in PMF search implementations due to their
  • Joint Code Acquisition and Doppler Frequency Shift Estimation for GPS . . .
    some code acquisition algorithms based on the combination of partial match filter (PMF) and FFT have been proposed to further decrease the acquisition time [5] Those methods used the PMF block for code phase search and the FFT was used for Doppler estimation at the same time Therefore, the two-dimensional search problem was converted into one-
  • 在MATLAB环境下，如何应用PMF-FFT方法实现GPS信号的高效捕获与跟踪，并通过零门限策略提升灵敏度？
    文章浏览阅读76次。为了在MATLAB环境下有效地实现GPS信号的捕获与跟踪，推荐阅读《MATLAB实现PMF-FFT的GPS信号捕获跟踪技术》。该文档详细介绍了结合脉冲匹配滤波器（PMF）与快速傅里叶变换（FFT）技术的GPS信号处理方法。具体步骤如下： 参考资源链接：[MATLAB实现PMF-FFT的GPS信号捕获跟踪技术](https
  • 时频域并行捕获算法 - buaa. edu. cn
    Liu Chang,Zhang Jun Analysis and optimization of PMF-FFT acquisition algorithm for high-dynamic GPS signal[C] 2011 IEEE 5th International Conference on Cybernetics and Intelligent Systems Qingdao:IEEE,2011:185-189 Qi Hua,Shi Xiaoqian,Ji Le PMF-FFT algorithm for PN code acquisition[J] Journal of Xi'an Technological University,2010,30(1):57
  • A New Rapid and Accurate Synchronization Scheme Based on PMF-FFT for . . .
    In this letter, a new rapid and accurate synchronization scheme based on PMF-FFT for high dynamic GPS receiver is proposed, with a fine Doppler frequency estimation inserted between the
  • Fast PN code acquisition technology research in high dynamic Doppler . . .
    In order to solve the problem of fast acquisition for GPS signal under high dynamic, the paper add window in traditional Partial Matched Filter (PMF) plus Fast Fourier Transform (FFT) for fast
  • 概率矩阵分解（PMF）在MovieLens上的Python代码-iteye
    重点对GPS信号的半匹配滤波与FFT变换(PMF-FFT)进行捕获方法进行了非常详细的描述，值得学习 PMF py的注意事项 该代码基于Sapphire1211（ ）的版本。 非常感谢！ 这段代码是使用python 2 7 8版本开发的 此代码适合于RMSE和Top-K的测量。Top-K的测量正在开发中。 数据取自
  • Comparison of IAADFC and NCI when the SNR decrease by 25 dB
    A new acquisition algorithm called PMF-FC-BA-FFT method is proposed to acquire the carrier frequency accurately with lower computational load in a weak signal environment
  • Dynamic Analysis of High Dynamic GNSS Signal Based on PMF -FFT
    Fig 2 1 Basic principle of signal acquisition based on PMF-FFT As examples shown in Fig 2 1, the main idea of PMF-FFT is: a Gained M (M = L X, L represents the length of the code) results during the
  • gnss 并行码捕获-matlab_导航捕获代码-CSDN博客
    文章浏览阅读8 5k次，点赞32次，收藏118次。1 gps捕获原理-简要首先是正交混频，剥离载波，注意本地nco（不懂的话可以查查dds）生成的相位步进以及相位累加器的溢出处理，没处理好会导致无法出现相关峰值，ca码不做介绍（这个看谢钢那本gps原理和接收机设计这本书就可以了），这个没什么技术





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