摘要
微弱激光回波信号探测是远距离激光主动探测的难点问题。本文提出了一种应用四象限探测器进行激光回波信号相关检测的新方法。经仿真计算表明,将四象限探测器接收到的4路回波信号送入相关处理器进行相关处理,可以检测出信噪比为-21．07dB的信号,其信号检测能力比二元相关检测要高出5．68dB。在4个象限中信号分布越均匀,信号检测能力越强。
Weak returnedlaser detection is bottleneck in remote active laser detection. A novel method of returnedlaser detection using four-quadrant detector was presented. The simulation results show that when signal was sent to the correlation processor. Signal-to-Noise is-21. 07dB,and its detection capabilityis superior to duality correlation detection, which is 5. 68dB higher than duality correlation. At the same time, the signal in four-quadrant is more equal, the signal detection capability is better.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第z2期1710-1712,共3页
Chinese Journal of Scientific Instrument
关键词
四象限探测器
二元相关检测
激光主动探测
four-quadrant detector duality correlation detection active laser detection
