信号处理对红外搜索系统作用距离的影响  

THE EFFECT OF SIGNAL PROCESSING ON DETECTION DISTANCE OF IR SEARCHING SYSTEM

作　　者：陈汝钧[1] 刘贤德[1] 石定河[1] 何兆湘[1] 

机构地区：[1]华中理工大学光电子系,湖北武汉430074

出　　处：《红外与毫米波学报》1993年第3期207-212,共6页Journal of Infrared and Millimeter Waves

摘　　要：将红外搜索系统的信号处理单元视为脉冲接收系统,在考虑其带宽对输出信噪比的影响下,推导了红外搜索系统的作用距离方程。根据脉冲接收系统输出最大信噪比的条件,确定了红外搜索系统信号处理单元的频带宽度与探测器驻留时间的关系,并得到了相应的作用距离方程,为红外搜索系统的设计和系统性能的评估提供了依据。Taking the signal processing unit of an IR searching system as a pulse receiver, and considering the effect of bandwidth of the pulse receiver on the output signal-to-noise ratio, the range equation of IR searching system is derived. According to the condition in which the pulse receiver will give the optimum output signal-to-noise ratio, the dependence of bandwidth of the Signal processing unit on the dwell time of the detector is determined, and the corresponding range equation is obtained, thus providing the guidelines for designing and evaluating the performances of the IR searching system.

关 键 词：红外搜索系统 作用距离 信息处理 

分 类 号：TN215[电子电信—物理电子学]