摘要
针对应用中存在的阵列幅相误差扰动问题,结合MUSIC(Multiple Signal Classification)算法,以均匀Y型阵列为基础,提出了一种针对幅相误差的校正及DOA(Direction Of Arrival)估计算法。先利用传统的MUSIC算法初步估计出信源的波达方向角,并计算出幅相误差的初始值,再通过迭代的方法计算得到更精确的幅相误差和DOA估计值。仿真实验验证了自校正算法具有良好的幅相误差校正效果,能够准确地估计出信源的波达方向和阵元的幅相误差值。
Aimed at the disturbance problem of amplitude and phase errors in practical application, combined with the MUSIC （Multiple Signal Classification） algorithm based on uniform Y-shaped array, amplitude and phase errors correction and DOA （Direction Of Arrival） estimation algorithm is proposed. Firstly, the source DOA is estimated by traditional MUSIC algorithm, and the initial value of the amplitude and phase errors is calculated.Then,more accurate amplitude and phase errors and DOA is calculated by the iterative method. The simulation results manifest that the algorithm, assumes good error correction effects and is able to accurately estimate the azimuth and the amplitude and phase error value.
出处
《通信对抗》
2012年第4期9-12,23,共5页
Communication Countermeasures
基金
国家自然科学基金(No.61071140)
关键词
Y型阵列
幅相误差
多重信号分类法
波达方向估计
阵列信号处理
Y-shaped array
amplitude and phase errors
MUSIC（Multiple Signal Classification）
DOA estimation
array signal processing
