CAJ | 학술논문

蒸发波导能够部分陷获电磁波的传播,从而改变电磁波的传播特征,形成超视距传播,但是粗糙海面对电波传播的影响会削弱这种传播特性。基于抛物方程（PE）模型,采用包含粗糙海面阴影效应的反射系数来计算电波传播损耗,仿真结果略大于采用Miller-Brown模型做海面粗糙度修正的传播损耗值。表明当波长与浪高可比拟甚至远小于浪高时,粗糙海面的阴影效应对电波传播的影响不可忽略。
증발파도능구부분함획전자파적전파,종이개변전자파적전파특정,형성초시거전파,단시조조해면대전파전파적영향회삭약저충전파특성。기우포물방정（PE）모형,채용포함조조해면음영효응적반사계수래계산전파전파손모,방진결과략대우채용Miller-Brown모형주해면조조도수정적전파손모치。표명당파장여랑고가비의심지원소우랑고시,조조해면적음영효응대전파전파적영향불가홀략。
The evaporation duct can partly trap electromagnetic waves,change propagation characteristics of radio wave,and eventually resulting in microwave propagation over-the-horizon above the sea,however,the roughness of the sea surface can weaken this effect.This paper considers the reflection factor that includes the shadow effect on the rough sea surface,then use PE model to simulate propagation loss,which is bigger than that simulated by Miller-Brown model.It shows that when wave length is shorter or near to the wave height,the shadowing effect on the sea surface cannot be neglected for the radio wave propagation.