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强信号下GNSS接收机前端处理引起的相关损耗

潘虹臣 寇艳红

潘虹臣, 寇艳红. 强信号下GNSS接收机前端处理引起的相关损耗[J]. 北京航空航天大学学报, 2016, 42(8): 1724-1730. doi: 10.13700/j.bh.1001-5965.2015.0518
引用本文: 潘虹臣, 寇艳红. 强信号下GNSS接收机前端处理引起的相关损耗[J]. 北京航空航天大学学报, 2016, 42(8): 1724-1730. doi: 10.13700/j.bh.1001-5965.2015.0518
PAN Hongchen, KOU Yanhong. Correlation loss caused by GNSS receiver front-end processing for strong signals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(8): 1724-1730. doi: 10.13700/j.bh.1001-5965.2015.0518(in Chinese)
Citation: PAN Hongchen, KOU Yanhong. Correlation loss caused by GNSS receiver front-end processing for strong signals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(8): 1724-1730. doi: 10.13700/j.bh.1001-5965.2015.0518(in Chinese)

强信号下GNSS接收机前端处理引起的相关损耗

doi: 10.13700/j.bh.1001-5965.2015.0518
基金项目: 国家自然科学基金(61271197)
详细信息
    作者简介:

    潘虹臣,男,硕士研究生。主要研究方向:卫星导航。E-mail:hongchenpan@163.com;寇艳红,女,博士,副教授。主要研究方向:卫星导航、无线通信和数字信号处理技术。Tel.:010-82317237。E-mail:kouy@buaa.edu.cn

    通讯作者:

    寇艳红,Tel.:010-82317237,E-mail:kouy@buaa.edu.cn

  • 中图分类号: TN967.1

Correlation loss caused by GNSS receiver front-end processing for strong signals

  • 摘要: 在全球导航卫星系统(GNSS)信号质量监测及GNSS射频(RF)信号模拟器测试等应用中,有用信号功率往往远高于噪声功率。针对二进制相位移位键控(BPSK)和二进制偏移载波(BOC)调制信号,首次研究了这种强信号条件下接收机带限滤波、采样和量化(BSQ)引起的相关损耗。首先分析了不考虑量化作用时由滤波和采样引起的损耗;然后分析了不考虑前端滤波时由量化和采样引起的损耗,推导了相关损耗的解析表达式并得到了量化器的最佳量化间隔;最后,对于滤波、采样、量化共同作用引起的损耗,采用蒙特卡罗方法仿真分析了GPS L1 C/A信号在不同滤波带宽和量化比特数下的归一化相关功率,探讨了根据仿真结果拟合相关损耗解析表达式的方法以简化分析。

     

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出版历程
  • 收稿日期:  2015-08-10
  • 刊出日期:  2016-08-20

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