基于子空间的Root-MUSIC方位超分辨估计

Azimuth Super-resolution Evaluation Based on Sub-space Root-MUSIC Method

在现代脉冲雷达中 ,加性噪声不一定是高斯噪声 ,如果利用二阶统计量进行估计 ,将会带来较大误差。从阵列信号处理的角度出发 ,采用Root-MUSIC方法 ,提出一种新估计量以获得多个独立目标的方位角。通过对等幅调相信号的仿真 ,验证了该新估计量有较好的性能。

Adopting to the Root-MUSIC algorithm, a new evaluation measure based on array signal processing for acquiring azimuth of many independent target is presented. In the modern pulse radar, addition noise is not always Gauss noise, if a two rank evaluation is estimated, the error will be relatively larger. Simulated the signal of equal amplitude phase modulation, the better performance of the new evaluation is showed.