摘要
激光测距的关键在于光电微弱信号的检测,如何调和可靠性和灵敏度之间的矛盾是弱检问题的关键。激光测距系统包括主控电路、发射电路、接收电路、计时电路以及其他一些功能电路,其中与虚警的产生和抑制密切相关的部分主要是接收电路和主控电路。从硬件设计和主控电路软件算法两方面,对测距机虚警抑制方法进行了分析,其虚警抑制方法对其他激光测距系统具有普遍意义。
The key of laser range finding is the detection of weak photoelectric signal. To make harmony between reliability and sensitivity, false alarm rejection must be considered. The system of laser range finding includes control circuit, transmit circuit, receive circuit, timing circuit and other function circuits. In these circuits, the generation and rejection of false alarm are closely correlated to the main control circuit and receive circuit. Given an example of vehicular anti-collision lidar, the measures of false alarm rejection are analyzed both in software algorithm and hardware design. These measures are available to other laser range finding systems.
出处
《光学与光电技术》
2005年第1期26-28,共3页
Optics & Optoelectronic Technology
关键词
激光测距
微弱信号检测
虚警抑制
laser range finding
weak signal detection
false alarm rejection
