一种综合发射波束的超分辨处理方法

A study of super-resolution processing of targets within a synthetic transmitting beam

针对发射采用阵列天线,接收只能采用单根天线的雷达,为了提高目标的角分辨能力,应用MUSIC算法对综合发射波束进行超分辨处理.由于单根天线接收信号经分离处理后得到的数据模型与常规非均匀阵列接收的数据模型等效,因此超分辨处理可以实现,仿真结果证实了这一点.这种在接收端对发射波束进行超分辨处理,提高了雷达对目标的角分辨能力和测角精度,并且拓展了超分辨处理的应用领域.

For a radar system with only one receiving antenna and the transmitting anterna arrays,in order to improve the target angular resolution,the MUSIC algorithm is applied to process the super-resolution of targets within the transmitting beam.As the signal model of the separated and processed data after being received by a single antenna is equivalent to that of the general reoeive antenna arrays in a nonuniform way,the super-resolution can be realized,which is proved by simulation results.The super-resolution processing of the synthetic trangmitting beam in the receiving terminal surely improves the distinction ability of the radar and the accuracy of the angular measurement.