Interference suppression in GPS receiver using space-time subspace projection techniques

GUO Yi1; ZHANG Er-yang1; SHEN Rong-jun2

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Interference suppression in GPS receiver using space-time subspace projection techniques

更新时间：2024-10-14

- Interference suppression in GPS receiver using space-time subspace projection techniques
- Issue 5, Pages: 62-66(2007)
- 作者机构：
  
  1. 国防科学技术大学电子科学与工程学院
  2. 解放军总装备部科学技术委员会
- 作者简介：
- 基金信息：
- DOI：
  CLC： P228.4
- Published：2007
- 稿件说明：
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GUO Yi1, ZHANG Er-yang1, SHEN Rong-jun2. Interference suppression in GPS receiver using space-time subspace projection techniques[J]. 2007, (5): 62-66.
DOI：

GUO Yi1, ZHANG Er-yang1, SHEN Rong-jun2. Interference suppression in GPS receiver using space-time subspace projection techniques[J]. 2007, (5): 62-66. DOI：

摘要

根据GPS接收机接收信号、噪声和干扰的特点

将子空间投影方法与空时信号处理相结合

利用基于数据域相关相减结构多级维纳滤波器(CSA-MWF)的前向递推多级分解特性构造出空时二维干扰子空间

进一步求出空时抗干扰最佳权。与传统的特征值分解方法相比

该方法避免了估计接收数据协方差矩阵及其特征分解运算

计算量大幅下降

同时抗干扰性能不受影响

适合多变环境和小数据样本情况。该方法结构简单

具有较高的可行性和实用性。仿真结果验证了该方法对窄带和宽带干扰均有效。

Abstract

A new approach was proposed for interference suppression in GPS receiver.It combines subspace projection with space-time processing based on the characters of GPS signal

noise and jammers.Space-time interference subspace is constructed using the multistage decomposition structure of the MWF based on the correlation subtractive architecture.Then the optimal filter is educed.Comparing with conventional eigenvalue decomposition technique

the method proposed avoids the estimation of receive data covariance matrix and its eigenvalue decomposition

reduces the computation while the anti-jammer performance is not affected.The performance in numerical simulation demonstrates that it is effective and efficient to both narrowband and wideband interference.

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Related Author

Ji-song YANG

Hao LIU

Chen SUN

DI Min-min

ZHANG Er-yang

GUO Yi1

ZHANG Er-yang1

SHEN Rong-jun2

Related Institution

National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China

College of Electronic Science and Engineering, National Univ. of Defense Technology

国防科技大学电子科学与工程学院

School of Electronic Science and Engineering,N.U.D..,Changsha

College of Communications Engineering,Jilin University

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