理论上研究一种双光束扫描、双光束接收的方法,使两束激光对同一空域的上半部、下半部同时扫描,在接收端再把它们分开。当成像距离一定时,像元素与帧频数的乘积可提高一倍；而当像元素与帧频数的乘积一定时, 非模糊的成像距离则提高一倍。因此采用二元接收方式可以提髙成像激光雷达的性能。实验上研究了两束方向垂直的偏振激光经过目标反射后的回波信号接收。

In this paper, a method of scanning and receiving two beams is theoretically studied. Two laser beams scanning respectively in the top half and the bottom half of the same frame, then separated at the two receivers. With the same imaging distance, the product of pixel and frame frequency can increase by two times; With the same product of pixel and frame frequency, the imaging distance without iuzziness can increase by two times. Therefore detecting two laser beams can increase the imaging performance for laser radar. Receiving the echo signal of two vertical polarized laser beams from the target is experimentally studied.