近红外全向激光成像探测系统建模与仿真

Modeling and simulation of near-infrared omnidirectional laser imaging detection system

考虑激光发射系统、激光的大气传输、光学接收系统、探测器和电路以及信号处理系统的影响,对近红外全向激光成像探测系统进行数学建模,基于Visual C++6.0开发了系统仿真软件,并进行仿真实验,实验参数的设置以自主研制的1.06μm全向激光成像探测系统为依据。外场试验采用85式手持激光测距机作为激光发射源,在系统满足探测概率95%,虚警概率1%的前提下,实际测出的最大可探测距离与仿真实验结果相对误差为1.8%。结果表明:该仿真软件能较客观、全面地反映出近红外全向激光成像探测系统在不同环境、不同系统条件下的探测结果,为系统结构论证、参数优化设计以及性能验证提供了依据。

Considering the influence of laser emission system, atmospheric transmission, optical receiver system,detector,circuit and signal processing system, the mathematic model of near-infrared omnidirectional laser imaging detection system was built. Based on Visual C ＋＋6.0, the system simulational software was developed and the simulation experiment was done. The parameters were input according to the self-made omnidirectional laser imaging detection system with 1.06 μm wavelength . The 85-portable laser range finder was taken as laser source to conduct the outfield experiment. When the detection probability was 95%, and the false-alarm ratio was 1%, the relative error between the result of maximal detectable distance of simulation experiment and outfield experiment was 1.8% .The result indicates that this simulation software can objectively reflect the detection results in different environments and systems,while the detection result can be the evidence of configuration demonstration, parameters optimization and performance certification.