Signal to Noise Ratio Calculation Model in Radar Detection System
نویسنده
چکیده
To solve noises affecting the performance of laser communication system problems, this paper studies mathematical model in atmospheric attenuation condition, sets up atmospheric attenuation coefficient of the primary factor aerosol (haze) according to the absorbing and scattering characteristics of the atmosphere, gives output SNR(Signal to Noise Ratio) models under atmosphere attenuation based on photoelectric conversion of laser communication system, analyses the relation between atmospheric attenuation coefficient and radius of haze under different visibility. Through calculation and analysis, the results show that size distribution of haze is the main factor which influences the performance of system. The models can effectively assess the performance of laser communication system under atmospheric attenuation, and provide a reference for relevant researches.
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