微波暗室内静区的功率比计算模型

基于模拟目标运动原理和数学建模方法,通过控制相邻两天线的辐射强度成比例的变化,运用等价重心原理,模拟了视在目标点的相对连续运动,应用光学镜像原理,分析了微波从"发射点→墙面反射区→静区"的传播过程,建立了静区从诸墙面得到的反射信号的功率之和与从信号源直接得到的微波功率之比的数学模型.运用MATLAB软件,实现了计算的程序化过程,数值计算结果可为判断微波暗室能否满足仿真技术要求提供理论依据.

Calculation Model of Power Ratio in Dead Zone of Microwave Darkroom

The mathematical model of the ratio between the total power of the reflected signal from each wall of dead zone and the microwave power which directly received from signal source is set up, based on the simulated target movement principle and mathematical modeling methods, by controlling the change which is proportional to the radiation intensity of the adjacent two antennas and applying the equivalence principle of the gravity center, to simulate the relatively continuous movement of installed target, by applying the optical mirror principle to analyze the communication process of microwave from the launch point to metope reflection area to dead zone. The routinization of calculation can be realized by using Matlab. The numerical results which can be use to provide a theoretical basis whether the microwave darkroom can meet the requirement of emulation technique.