一种新的旋转不变方法实现起伏目标的高分辨方向－多普勒频率盲估计

本文研究阵列雷达对起伏目标的方向－多普勒频率二维估计问题，由于阵列天线各阵元特性不一致，阵列流形不可精确已知。本文基于高阶统计量提出了利用旋转不变技术实现未精确已知阵列流形（Ａｒｒａｙｍａｎｉｆｏｌｄ）条件下，方向－多普勒频率盲估计的新方法，当发生目标多普勒频率一维兼并时，用此方法仍能分辨目标的方向，并估计出多普勒频率。计算机仿真结果验证了此方法的有效性。

Blind Estimates of Angle-Doppler Frequency for Fluctuating Targets Signals via New Rotational Invariance Techniques

We address the problem of for phased array pulses Doppler radars estimating directions of arrival (DOA) and Doppler frequences of fluctuating targets signals. Based on new rotational invariance techniques,a blind estimates of DOA and Doppler frequence with unknown array manifold due to array elements uncertainties is proposed in the paper. The new method can resolve the angles of multiple narrowband signals even with the same Doppler frequence each other. The efficiency of the proposed method with uncertainties array is confirmed by computer simulations.