According to the imaging process of laser active imaging system,the signal-noise ratio model of laser active imaging system is established by analyzing the reflection characters of target and background,atmosphere backscattering character,range gating character and the performance of laser and receiver.
根据主动成像系统的成像过程,通过分析目标与背景的辐射特性、大气的后向散射特性、距离选通特性以及激光发射器和接收器的性能,建立了激光主动成像系统的信噪比模型。
532 μm operation wavelength,Basler 201b camera,sync control range gating plat.
532μm的固体激光器,Basler 201b相机,以及基于CPLD技术设计的距离选通同步控制板,进行了主动成像实验,并对系统最大距离方程进行了仿真与验证。
Range gating is a kind of effective method that can eliminate backscattered light and increase the SNR of the range gated laser imaging system.
距离选通技术是克服大气后向散射,提高主动成像系统信噪比的有效方法。