摘要
基于雪崩光电二极管APD阵列的三维成像激光雷达采用激光单脉冲直接获取三维图像。为了仿真评估系统的性能,主要分析了APD阵列增益对系统信噪比和探测概率的影响,APD阵列的阈值电压对系统探测概率的影响。仿真结果表明,当选取合适的APD阵列增益时,系统的信噪比和探测概率可以达到最大值;APD阵列阈值电压的增大会降低系统的探测概率,并且对系统的探测概率影响很大。
3D imaging LADAR based on APD arrays captures 3D image with single laser pulse. In order to emulate and evaluate the system performance, the signal-to-noise （SNR） and probability of detection （Pd） vs. the gain and threshold voltage of APD arrays were discussed in this paper. And tl he simulation results indicate that selecting an appropriate gain of APD arrays, the SNR and Pd can achieve the maximum ; as threshold voltage of detector arrays increasing,it will reduce the probability of detection with a great influence.
出处
《激光与红外》
CAS
CSCD
北大核心
2010年第2期132-135,共4页
Laser & Infrared
基金
航空科学基金项目(No.20070151002)
预研基金项目(No.9140A01010108HK0128)资助
关键词
激光雷达
APD阵列
信噪比
探测概率
ladar
APD arrays
signal-to-noise
probability of detection
