中文摘要：

自适应角度-多普勒补偿（Adaptive Angle Doppler Compensation，A^2DC）算法可在惯导参数未知的情况下解决非正侧视阵列中由杂波距离相关性引起的非均匀问题，但该算法运算量大、工程实现困难。本文首先对A^2DC算法的基本工作原理进行了深入的分析，在此基础上，针对算法运算量大的缺点，将分块处理和近似投影子空间跟踪（Projection Approximation Subspace Tracking，PAST）技术引入到A^2DC算法中，提出一种快速自适应角度一多普勒补偿（Fast Adaptive Angle Doppler Compensation，FA^2DC）算法。与常规的A^2DC算法相比，二者补偿性能相当，但FA^2DC算法的运算量显著降低。系统仿真验证了此算法的有效性。

英文摘要：

The adaptive angle Doppler compensation （A2DO） method can be applied to compensate for the clutter range dependence for non-sidelooking arrays without requiring any navigation data. However, this method suffers from a serious drawback of high computational complexity which limits its real-time application. In this paper, the principle of the A2DO method is first investigated. Then, to address the computational burden, a block processing and projection approximation subspace tracking （PAST） technique is inserted into the A2 DO method and a fast A2DO （FA2DO） method is proposed. Simulation results are presented to show that these two compensation methods demonstrate approximately the same performance, but the proposed method reduces the computational complexity significantly.