| 周晓飞,冯海泓,黄敏燕,宋君才.一种均匀线阵互耦校正算法[J].声学技术,2016,35(3):270~275 |
| 一种均匀线阵互耦校正算法 |
| A mutual coupling calibration algorithm for uniform linear array |
| 投稿时间：2015-08-16 修订日期：2015-10-25 |
| DOI：10.16300/j.cnki.1000-3630.2016.03.017 |
| 中文关键词: 旋转不变子空间 均匀线阵 互耦 |
| 英文关键词: Estimating Signal Parameters via Rotational Invariance Techniques(ESPRIT) uniform linear array mutual coupling |
| 基金项目: |
|
| 摘要点击次数: 1141 |
| 全文下载次数: 1541 |
| 中文摘要: |
| 旋转不变子空间(Estimating Signal Parameters via Rotational Invariance Techniques,ESPRIT)算法是空间谱估计中的典型算法,但是阵列互耦会严重影响ESPRIT算法的测向性能。将均匀线阵划分为冗余阵元和有效中心阵元,对有效中心阵元利用ESPRIT算法估计出校正源方位角,结合冗余阵元信息估计出互耦系数阵。计算机仿真显示该算法在互耦自由度为2或3时均有效,算法还从仿真角度研究了幅度和相位误差对算法性能的影响。该算法校正时只需单个未知方位校正源,是一种操作简单的均匀线阵互耦校正算法。 |
| 英文摘要: |
| Estimating signal parameters via rotational invariance techniques (ESPRIT) is a typical spatial spectrum estimation algorithm, but an array of mutual coupling can seriously affect the the performance of direction finding of ESPRIT algorithm. The mutual coupling matrix of uniform linear arrays is modeled with a symmetric Toeplitz matrix. According to the freedom of mutual coupling matrix, part of the array elements at the two sides is neglected. DOA is estimated by using ESPRIT algorithm with the remained ones. The algorithm calculates the mutual coupling coefficient matrix with estimated DOA and redundant array elements. A single calibration source is needed in the algorithm. In the end, computer simulations demonstrate the effectiveness of the proposed method and study the performance of algorithm under both amplitude error and phase error existing. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
