雷达系统标校是采取措施减小或消除系统误差,平面多输入多输出阵列成像系统为了能够重建得到高质量的全息图像,需要对各个通道对的响应不一致性以及测量的相位进行校准。文中分析了系统误差来源及主要影响,通过仿真给出了参考反射物(平板)倾斜、放置误差及馈线长度误差等对系统标校方法的影响,仿真分析结果可供工程技术人员参考。

The radar system calibration is to take measures to reduce or eliminate system errors. In order to reconstruct high-quality holographic images, the planar MIMO array imaging system needs to calibrate the inconsistencies and measured phases of the every transmission and receive channel pair. The source and main influence of system error are analyzed. The influence of reference reflector (metal plate) tilt, placement error and antenna feed line length error on the calibration method is given through simulation.Meanwhile, the simulation results can be used for reference by engineers and technicians.

TN957. 52