| 基于LCMV的两种干扰抑制算法对比分析 |
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| 引用本文： | 黄 涛,常 青,徐 勇.基于LCMV的两种干扰抑制算法对比分析[J].太赫兹科学与电子信息学报,2016,14(6):891-896. |
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| 作者姓名： | 黄 涛 常 青 徐 勇 |
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| 作者单位： | School of Electronic and Information Engineering，Beihang University，Beijing 100191，China,School of Electronic and Information Engineering，Beihang University，Beijing 100191，China and School of Electronic and Information Engineering，Beihang University，Beijing 100191，China |
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| 摘 要： | 为了对比分析线性约束最小方差(LCMV)准则下的功率倒置(PI)算法和最小方差无失真响应(MVDR)算法的综合抗干扰性能，建立天线阵列接收信号模型。理论分析了LCMV准则以及PI和MVDR算法原理和特点。从对扩频信号捕获和信号载波相位的影响2个方面对比分析了2种抗干扰算法的性能，并利用Matlab对分析结果进行验证及进一步分析，得出MVDR算法抗干扰性能优于PI算法，对卫星导航领域的抗干扰的工程实践有一定的指导和借鉴意义。
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| 关 键 词： | 线性约束最小方差 功率倒置 最小方差无失真响应 抗干扰算法 |
| 收稿时间： | 9/6/2015 12:00:00 AM |
| 修稿时间： | 2015/11/11 0:00:00 |
Comparative analysis of two kinds of anti-jamming algorithms based on LCMV |
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| HUANG Tao,CHANG Qing and XU Yong.Comparative analysis of two kinds of anti-jamming algorithms based on LCMV[J].Journal of Terahertz Science and Electronic Information Technology,2016,14(6):891-896. |
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| Authors: | HUANG Tao CHANG Qing and XU Yong |
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| Abstract: | An antenna array receiving signal model is set up in order to compare and analyze the anti-jamming comprehensive performance of the two kinds of algorithm including Power Inversion(PI) algorithm and Minimum Variance Distortionless Response(MVDR), which are based on Linear Constrained Minimum Variance(LCMV) criterion. Based on the module, theoretical analysis of the principle and characteristics of PI and MVDR are carried out. The comparison and analysis of the influence between spread spectrum signal capture and carrier phase are implemented. Besides, Matlab is adopted to validate the analysis results and perform future analysis. The final conclusion is that MVDR is better than PI. This work shows important guiding significance for engineering practice in the field of satellite navigation anti-jamming. |
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