GPS欺骗式干扰环境下MVDR算法的性能分析

计算机工程与科学

GPS欺骗式干扰环境下MVDR算法的性能分析

董惠，郝鹏飞，王纯，张鹭

（西安建筑科技大学信息与控制工程学院,陕西西安 710055）

收稿日期:2015-05-14 修回日期:2015-10-29 出版日期:2016-11-25 发布日期:2016-11-25
基金资助:
陕西省自然科学基金（2013JQ8003）

Performance analysis of MVDR algorithm in

GPS deception jamming environment

DONG Hui，HAO Pengfei，WANG Chun，ZHANG Lu

（School of Information and Control Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China）

Received:2015-05-14 Revised:2015-10-29 Online:2016-11-25 Published:2016-11-25

摘要/Abstract

摘要：

经典MVDR算法在GPS压制式干扰环境下的表现出色，为分析MVDR算法在欺骗式干扰环境下的性能，根据该环境下信号、干扰的功率都淹没于噪声功率之下的特点，推导出阵列天线采用MVDR算法后的方向图增益和输出信干噪比的近似表达式。通过仿真实验，分析验证了MVDR算法在欺骗式干扰环境下失去了抑制干扰能力的原因，并讨论了影响阵列输出信干噪比变化的因素及其随各因素变化的规律。

关键词: 欺骗式干扰, 特征分解, 最小方差无失真响应算法, 全球定位系统

Abstract:

The classical minimum variance distortionless response (MVDR) algorithm has an excellent performance in the GPS blanket jamming environment. To analyze the performance of the classical MVDR algorithm in deception jamming environment, we derive an approximate expression of the array gain and output signaltointerferenceplusnoise ratio according to the fact that desired signal power and interference power are far below noise power. Combined with the simulation results, we figure out the reason why the MVDR algorithm loses the ability of interference suppression in the deception jamming environment. In addition, we also discuss the factors that impact the output signaltointerferenceplusnoise ratio and the way they work.

Key words: deceptive jamming, eigendecomposition, minimum variance distortionless response algorithm, global position system

董惠，郝鹏飞，王纯，张鹭. GPS欺骗式干扰环境下MVDR算法的性能分析[J]. 计算机工程与科学.

DONG Hui，HAO Pengfei，WANG Chun，ZHANG Lu.

Performance analysis of MVDR algorithm in

GPS deception jamming environment

[J]. Computer Engineering & Science.

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