高功率微波大气传输中的非线性衰减

Non-Linear Attenuation of High Power Microwave Propagation in Atmosphere

高功率微波大气传输过程中的衰减分为两个部分,一是和中小功率微波相同的气体吸收衰减、干涉衍射衰减和雨衰减,另一是由于高功率微波作用导致大气电离或击穿带来的非线性衰减。本文主要讨论非线性引起的衰减,并通过数值计算比较了两种计算非线性衰减的算法。

Attenuation of high power microwave propagation in atmosphere contains two parts: one is atmospheric absorption attenuation, interference diffraction attenuation and rain attenuation that simulate with medium and small sized power microwave; another is non-linear attenuation due to air ionization or breakdown coming from high power microwave heating atmosphere.This paper focuses on non-linear attenuation and compares two kinds of arithmetics by numerical computation.