摘要
研究了激光雷达中的雪崩光电二极管恒虚警率控制技术,提出了一种基于FPGA的恒虚警率控制电路,通过噪声检测能够有效地根据背景辐射进行自适应调整,保持恒定的虚警率,并使雪崩二极管处于最佳工作偏压.实验结果表明其良好地实现了恒虚警率控制.
The constant false alarm rate （CFAR） controlling technique of avalanche photo diode （ APD ） applied in Lidar was studied, and a CFAR controlling circuit based on FPGA was described. Our results show that it is capable of self-adjusting according to the background radiation by means of noise detection, and it can also maintain constant FAR and make the APD in the optimum state of bias voltage. Experimental results indicate that this circuit can well realize CFAR controlling.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第1期50-53,共4页
Journal of Infrared and Millimeter Waves
基金
中国科学院知识创新工程青年人才领域前沿项目资助-三维成像激光雷达总体技术(A8)
关键词
遥感技术
激光雷达
恒虚警率
噪声检测
remote-sensing technology
LIDAR
constant false alarm rate（CFAR）
noise detection
