窄带干扰抑制对码相位测量零值的影响分析

doi:10.3969/j.issn.1000-1093.2016.02.015

兵工学报 ›› 2016, Vol. 37 ›› Issue (2): 293-298.doi: 10.3969/j.issn.1000-1093.2016.02.015

窄带干扰抑制对码相位测量零值的影响分析

刘泳庆¹，蒋硕²，于栋¹，邵晓田¹

(1.北京理工大学信息与电子学院, 北京 100081; 2.中国空间技术研究院通信卫星事业部, 北京 100094)

收稿日期:2015-07-07 修回日期:2015-07-07 上线日期:2016-04-22
作者简介:刘泳庆(1987—)男博士研究生
基金资助:
国家自然科学基金项目（61271258）

Effect of Narrowband Interference Suppression on Pseudorandom Code Zero Value

LIU Yong-qing¹， JIANG Shuo²， YU Dong¹， SHAO Xiao-tian¹

(1.School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China;2.Institute of Telecommunication Satellite, China Academy of Space Technology, Beijing 100094, China)

Received:2015-07-07 Revised:2015-07-07 Online:2016-04-22

摘要/Abstract

摘要： 研究伪码测距中窄带干扰抑制算法对码相位测量零值的影响，构建窄带干扰抑制下的码相位零值偏差分析模型，确定窄带干扰抑制的等效滤波器特性与码相位零值偏差的关系，并给出窄带干扰抑制等效滤波器权值与码相位零值偏差关系的简化分析表达式。数值分析和蒙特卡洛仿真结果表明：等效滤波器呈现线性相位特性的窄带干扰抑制算法不会造成码相位测量零值的偏差；等效滤波器呈现非线性相位特性的窄带干扰抑制算法对码相位测量零值的影响取决于滤波器权值与伪码自相关函数相关的结果。

关键词: 信息处理技术, 伪码测距, 窄带干扰抑制, 码相位测量零值, 相频特性

Abstract: Effect of narrowband interference suppression (NBI) on pseudorandom code zero value in PN code ranging system is presented. The equivalent filter model for classic NBI suppression algorithm is used to establish a model of analyzing the effect of NBI suppression on code phase bias. The relationship between the code phase zero value bias and equivalent filter characteristic is determined, and a simplified analytical model is proposed. Both theoretical analysis and simulations illustrate that the linear phase filter has no effect on code phase zero value; nonlinear phase filter has an effect on carrier phase zero value, which is directly related to the convolution results of the weights of filter and pseudo-code autocorrelation function.

Key words: information processing technology, pseudo-code ranging, narrowband interference suppression, code phase zero value, phase-frequency characteristic

中图分类号:

TN96

刘泳庆，蒋硕，于栋，邵晓田. 窄带干扰抑制对码相位测量零值的影响分析[J]. 兵工学报, 2016, 37(2): 293-298.

LIU Yong-qing， JIANG Shuo， YU Dong， SHAO Xiao-tian. Effect of Narrowband Interference Suppression on Pseudorandom Code Zero Value[J]. Acta Armamentarii, 2016, 37(2): 293-298.

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窄带干扰抑制对码相位测量零值的影响分析

Effect of Narrowband Interference Suppression on Pseudorandom Code Zero Value

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