direction finding and ranging

同义词释义

1)direction finding and ranging,定向和测距2)DDR,定向和测距装置3)Optical direction and ranging,光学定向和测距4)determination of direction and range,定向和测距装置定向与测距系统5)radar (radio detecting and ranging),雷达(无线电定向和测距)6)optical directional and ranging(OPDAR),光学定向和测距，光雷达