| 幅相误差对修正MUSIC算法测向性能的影响与分析 |
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| 引用本文： | 张志军,张浩,朱国军.幅相误差对修正MUSIC算法测向性能的影响与分析[J].现代电子技术,2007,30(5):48-50. |
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| 作者姓名： | 张志军 张浩 朱国军 |
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| 作者单位： | 西安电子科技大学,雷达信号处理国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 首先阐述了阵列信号处理中广泛采用的修正MUSIC算法原理，并推导了天线阵元幅相误差条件下的修正MUSIC算法，重点分析了阵元幅相误差对修正MUSIC算法测向性能的影响。最后以均匀线阵为例进行了仿真，计算机仿真结果表明，阵元幅相误差严重影响着修正MUSIC算法的测向性能，因此在应用修正MUSIC算法进行来渡方向估计的时候，必须考虑阵元幅相误差的影响。
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| 关 键 词： | 信号DOA估计 幅相误差 修正MUSIC算法 阵列 |
| 文章编号： | 1004-373X（2007）05-048-03 |
| 收稿时间： | 2006-07-26 |
| 修稿时间： | 2006年7月26日 |
Effect and Analysis of Amplitude and Phase Errors in Modified MUSIC Algorithm Direction-finding |
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| ZHANG Zhijun,ZHANG Hao,ZHU Guojun.Effect and Analysis of Amplitude and Phase Errors in Modified MUSIC Algorithm Direction-finding[J].Modern Electronic Technique,2007,30(5):48-50. |
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| Authors: | ZHANG Zhijun ZHANG Hao ZHU Guojun |
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| Affiliation: | ZHANG Zhijun,ZHANG Hao,ZHU Guojun (National Key Lab of Radar Signal Processing,Xidian University,Xi＇an,710071,China) |
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| Abstract: | Principles of modified MUSIC algorithm,which is widely applied in array signal processing,have been detailed introduced at the beginning.Then deduces the modified MUSIC algorithm under sensor amplitude and phase errors,and discusses the sensor amplitude and phase errors in direction-finding.The paper simulates it with linear array.Computer simulation results show that the sensor amplitude and phase errors have seriously effect on the capability of modified MUSIC algorithm,thus have to consider the sensor amplitude and phase errors during the DOA. |
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| Keywords: | signal DOA estimation amplitude and phase errors modified MUSIC algorithm array |
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