The speed of moving-target was measured based on the principle of PD frequency shift, and the range of moving-target on the pulse-echo principle.
利用多普勒频移原理实现了运动目标速度测量，利用脉冲回波测距原理实现运动目标距离测量。
In terms of speed, accuracy and reliability for medium range measurement, phase shift laser rangefinder is superior to other methods.
对于中程距离的测量，从测量速度、精度和可靠性的折衷方面来讲，相位式激光测距法优于其它的测距法。
In terms of speed, accuracy and reliability for medium range measurement, phase shift laser rangefinder is superior to other methods.
对于中程距离的测量，从测量速度、精度和可靠性的折衷方面来讲，相位式激光测距法优于其它的测距法。
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