论文部分内容阅读
为了完善多像素光子计数器(MPPC)在激光测距和激光雷达等方面应用的理论基础,对MPPC作为激光测距或激光雷达光探测器的探测率与虚警率进行了系统研究,运用泊松理论提出了基于MPPC的探测率与虚警率模型,推导了相应的解析表达式,并进行了数值分析,发现了一些传统探测器不存在的有趣特性。数值结果显示,利用多像素光子计数器作为激光测距的光接收器时,即使不使用门控(选通)技术,仅仅依靠等效光电子数探测阈值调节技术就可以达到实际应用中激光测距的系统要求。其灵敏度可达到光子量级,并能进行光子数分辨。该模型和结果对于促进MPPC在激光测距和激光雷达方面的应用,实现高灵敏度快速探测有一定的理论和实用价值。
In order to improve the theoretical basis of multi-pixel photon counter (MPPC) application in laser ranging and lidar, the detection rate and false alarm rate of MPPC as a laser ranging or lidar photodetector are studied systematically. The theory proposed the detection rate and false alarm rate model based on MPPC, deduced the corresponding analytical expressions, and carried out numerical analysis, and found that some of the traditional detectors do not exist the interesting features. Numerical results show that the use of multi-pixel photon counter as a laser ranging optical receiver, even without the use of gating (gating) technology, only rely on the equivalent photon detection threshold adjustment technology can be achieved in practical applications of laser ranging System Requirements. Its sensitivity can reach the photon level, and the number of photons can be resolved. The model and result have certain theoretical and practical value to promote the application of MPPC in laser ranging and lidar and achieve high sensitivity and rapid detection.