摘要
研究了用雪崩二极管 (SiAPD)检测激光脉冲回波信号的统计特性 ,分析了激光测距系统的探测概率、虚警概率和漏探测概率与系统参数及检测电路所设阈值的关系。阈值的选取对系统的探测性能有很大影响 ,对实际系统的计算表明 ,回波产生的初级光电子数和SiAPD的平均增益决定了阈值的选取区间。
Statistical properties of pulse laser signal detection using SiAPD as a detector has been theoretically studied, and the relation between the preset threshold and detection performance has been analyzed. Theoretical studies indicate that the threshold applied to the discriminator has the decisive influence on the detection performance. Analysis shows that primary photoelectrons and average gain of SiAPD determine the threshold scope within which it can guarantee the laser ranging systems detection probability and false alarm probability.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2002年第6期541-544,共4页
Chinese Journal of Lasers
基金
国家 8 6 3计划 30 8主题项目 (项目号 :86 3 30 8 12 0 1(1)
