数字摄影测量技术在连续波雷达天线指向精度测量中的应用

Application of Digital Photogrammetry Technology in Measurement of Antenna Pointing Precision of Continuous Wave Radar

连续波雷达的天馈分系统通常采用收发分置天线,因此在该类雷达天线装配过程中保持天线的指向精度对保证该类雷达性能尤为重要。传统的非接触式测量技术难以同时测量多个天线反射体的指向精度,而数字摄影测量技术能够同时对多个天线反射体在不同姿态下的指向精度进行测量,并提供测量结果及修正数据,指导连续波雷达天线装配过程中的姿态调整。

The antenna feeder subsystem of continuous wave radar usually adopts bistatic antenna.Therefore,it is particularly important for the radar performance to maintain antenna pointing precision during the antenna assembly process.Traditional non-contact measurement technology is difficult to measure pointing precision of multi-antenna reflectors at the same time.While digital photogrammetry technology can measure simultaneously pointing precision of multi-antenna reflectors in different positions,at the same time,provide measurement results and correction data,which are used to guide the antenna position adjustment in the process of continuous wave radar antenna assembly.