| 色噪声背景下的阵列幅相误差自校正算法 |
| |
| 引用本文： | 刘成城,赵拥军,杨静.色噪声背景下的阵列幅相误差自校正算法[J].电子信息对抗技术,2011,26(4):9-13,36. |
| |
| 作者姓名： | 刘成城 赵拥军 杨静 |
| |
| 作者单位： | 解放军信息工程大学,郑州,450002 |
| |
| 基金项目： | 国家863项目(2009AA7034530) |
| |
| 摘 要： | 针对色噪声环境下的阵列幅相误差自校正问题,提出一种适合任意阵列的幅相误差自校正算法。该算法首先在每次迭代开始前利用H∞滤波方法得到稳健的DOA估计值,然后给出一种幅相误差最优初始值的估计方法求解出幅相误差的次优解,最后基于交替加权最小二乘算法,分别对幅相误差和噪声功率进行估计。理论和仿真实验均表明该算法不仅迭代次数少,且具有较好的参数估计性能。
|
| 关 键 词： | 波达方向 色噪声 幅相误差 自校正 |
Array Gain and Phase Self-Calibration Algorithm in the Presence of Colored Noise |
| |
| Authors: | LIU Cheng-cheng ZHAO Yong-jun YANG Jing |
| |
| Affiliation: | LIU Cheng-cheng,ZHAO Yong-jun,YANG Jing(Information Engineering University,Zhengzhou 450002,China) |
| |
| Abstract: | A novel algorithm that can calibrate array gain and phase error in the colored noise fields for arbitrary array is proposed.Based on weighted alternating least squares algorithm,this algorithm solves for gain and phase error and colored noise powers.Then by H∞ filtering technique and weighted subspace fitting,it achieves the estimation of DOA.A new method that can give an optimal initial value of gain and phase is also presented,which reduces the number of iterations.Simulation results demonstrate the validity of this new algorithm. |
| |
| Keywords: | DOA colored noise gain and phase error self-calibration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
