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。
Range-gated circuit was implemented by CPLD chip,which decreased the volume and reduced the cost of power and improve system s real-time.
为消除水下环境中后向散射光的影响,接收系统采用距离选通接收技术,选通电路采用CPLD芯片来实现,不仅减小了系统的体积、降低了功耗,而且提高了系统的实时性。
Non-scanning 3-D range-gated imaging lidar can improve the detection capability,image quality and distance accuracy of the system by suppressing back scattering and removing fuzzy distance.
无扫描3-D距离选通成像激光雷达能有效抑制后向散射,消除距离模糊,提高系统的探测能力、成像质量和距离精确性。
In this paper, Based on the analysis of a typical 3D imaging laser radar system, range-gated technology which can be effectively curbed the back scattering light was applied to the 3D imaging laser radar, proposed range-gated array detect 3D i.
本文在对典型3D成像激光雷达系统分析的基础上,将用于抑制后向散射的距离选通技术应用到了阵列探测3D成像激光雷达上,搭建了距离选通阵列探测3D成像激光雷达系统。
This article brings up the method on the checking consistency for filtering nonsynchronous radar signal,which is used on the condition of the anti-radiation missile(ARM) system cannot producing the select gate for tracing target.
为使反辐射导弹(ARM)系统在无法给出跟踪目标的选通波门下仍能完成异步脉冲滤除,文中提出了一种基于一致性校验的滤除异步雷达信号方法,通过MATLAB对该方法进行了仿真与分析,并利用仿真结果验证了在这种情况下此异步信号滤除方法的有效性。