Laser Detection System Using Method of Automatic Gain Control

In this paper, the two main reasons are analyzed, the major impact on laser range finding precision due to echo signal great varying range, and the error causing by the time delay triggering the continuation of system. For them, the methods are provided that the AGC technology in the receiving circuit is adopt to stabilize the echo signal of the detection system. Then the problems of great varying range of echo signals caused by different detection targets and triggering accuracy the continuation actuators are resolved efficiently.