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PN码相位精确测量的累加最小二乘法

张波 郭英 齐子森 张东伟 张坤峰

张波, 郭英, 齐子森, 等 . PN码相位精确测量的累加最小二乘法[J]. 北京航空航天大学学报, 2016, 42(10): 2265-2270. doi: 10.13700/j.bh.1001-5965.2015.0620
引用本文: 张波, 郭英, 齐子森, 等 . PN码相位精确测量的累加最小二乘法[J]. 北京航空航天大学学报, 2016, 42(10): 2265-2270. doi: 10.13700/j.bh.1001-5965.2015.0620
ZHANG Bo, GUO Ying, QI Zisen, et al. Precise measurement of PN code phase by accumulative least square method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(10): 2265-2270. doi: 10.13700/j.bh.1001-5965.2015.0620(in Chinese)
Citation: ZHANG Bo, GUO Ying, QI Zisen, et al. Precise measurement of PN code phase by accumulative least square method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(10): 2265-2270. doi: 10.13700/j.bh.1001-5965.2015.0620(in Chinese)

PN码相位精确测量的累加最小二乘法

doi: 10.13700/j.bh.1001-5965.2015.0620
基金项目: 航空科学基金(20112096016);通信网信息传输与分发技术重点实验室开放课题(ITD-U12003/K1260009)
详细信息
    作者简介:

    张波,男,博士研究生,助教。主要研究方向:软件无线电、同步技术。Tel.:0431-86958347,E-mail:bo_zhang0106@126.com;郭英,女,博士,教授,博士生导师。主要研究方向:通信信号处理、语音信号处理。Tel.:029-84791773,E-mail:guoying_dsp@sina.com

    通讯作者:

    郭英,Tel.:029-84791773,E-mail:guoying_dsp@sina.com

  • 中图分类号: TN914.42

Precise measurement of PN code phase by accumulative least square method

Funds: Aeronautical Science Foundation of China (20112096016); Foundation of the Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory (ITD-U12003/K1260009)
  • 摘要: 利用最小二乘(LS)法可以实现PN码相位的精确测量,但该方法对粗同步要求高,难以满足实际工程需求。给出了一种新的累加LS法的实现结构,在该结构下根据鉴相曲线的波形变化特征,利用累加后的离散鉴相曲线的最大值和最小值点作为特征基准点,取最值之间的数据进行LS线性拟合,实现粗同步于半个码元宽度以内的伪码相位精确测量。理论分析表明,该方法的鉴相特性呈线性特征,可以有效使用累加LS线性拟合方法。仿真结果表明,该方法相比于其他方法使用范围更广,测量精度更高。

     

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出版历程
  • 收稿日期:  2015-09-22
  • 网络出版日期:  2016-10-20

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