基于去卷积的目标角度超分辨方法

A Method of Angular Super-resolution Based on Deconvolution

介绍了一种提高雷达角度分辨率的方法。为分辨同一波束内多个目标,通过同时接收多波束覆盖发射波束,再对接收回波进行去卷积滤波,实现了单脉冲角度超分辨。还分析了角度分辨能力与信噪比的关系,仿真表明,角度分辨力的提高与信噪比紧密相关,在信噪比为20dB时,角度分辨力提高系数为3。

A method is introduced to improve the angular resolution of radar.To distinguish targets within the same beam,multiple simultaneously receiving beams are used to cover the transmitting beam,and angular super-resolution in single pulse is attained after the received echoes are filtered by deconvolution.The relationship between angle resolution and SNR is also analyzed.Simulation results show that the improved angular resolution and SNR are closely related.An improved coefficient 3is obtained when SNR is 20 dB.