基于宽带数字波束形成的多通道均衡校正技术

摘要

宽带数字波束形成技术是实现多目标测控的一种较为理想的系统方案.首先介绍多目标测控系统的总体架构,然后给出一种基于频域均衡的宽带 DBF 通道校正算法,采用具有线性相位结构的 FIR 滤波器进行信道均衡.仿真及实测数据表明,算法能够准确补偿由于通道间差异引起的信号幅相误差,完成测控系统多通道校准.%The wideband digital beamforming technology is an ideal solution to achieve multi-target telemetry, tracking and command (TT&C). Firstly the overall architecture of multi-target TT&C system is introduced. Then a wideband DBF channel correction algorithm based on frequency domain equalization is given. In this paper the FIR filter with a linear phase structure is adopted for the channel equalization. The simulation and test results show that the algorithm can accurately compensate for the signal amplitude and phase error caused by the difference between the channels and it can complete the multi-channel calibration for the multi-target TT&C system.