为了实现基于CW CO₂激光的运动目标横向速度测量，使用双光束方式在室内进行了实验，得到了较清晰的多普勒频移信号，并对信号数据进行了滤波处理，以提高信噪比。计算出了运动目标速度并与实际速度进行了比较。结果表明，测得速度值与实际值相当接近。

An experiment set-up is constructed to measure the transverse velocity of a moving target by using dual beam mode of CW CO₂ laser in the laboratory. The experiment is conducted in the laboratory using dual-beam mode and clear Doppler frequency signals are recorded,and signal data filtering is performed leading to an enhanced SNR. The calculated velocity of the moving target is compared with the actual velocity. The result shows that the measured velocity corresponds with the actual velocity very well.