基于Simulink的干涉式微波辐射计系统仿真研究  

Simulation of Microwave Interferometric Radiometer System based on Simulink

作　　者：陈思[1,2] 刘浩[1] 吴季[1] 牛立杰[1] 

机构地区：[1]中国科学院微波遥感技术重点实验室中国科学院空间科学与应用研究中心,北京100190 [2]中国科学院大学,北京100049

出　　处：《遥感技术与应用》2015年第4期757-766,共10页Remote Sensing Technology and Application

摘　　要：介绍了通过Matlab/Simulink建立干涉式微波辐射计系统仿真模型的方法。针对干涉式微波辐射计的基本构成单元——二元干涉仪,搭建了仿真模型,通过对辐射计随机噪声测量过程的模拟,实现了单通道全功率测量仿真及双通道干涉测量仿真,在时域范围内实现了对系统测量精度、灵敏度指标的定量化分析。A method using Simulink to build the simulation model of the microwave interferometric radiome- ter （MIR） system is introduced in this paper. Two-element interferometer is the basic unit of the MIR sys- tem. By the Simulink platform, a simulation model of the two-element interferometer was built and the measurement process of the random noise was simulated. Through the simulation of the full power meas- urement achieved interference measurement of single channel and two channels. Quantitative analysis of the radiometric accuracy and radiometric sensitivity were achieved in the time domain.

关 键 词：干涉式微波辐射计 可见度函数 仿真模型 SIMULINK 

分 类 号：TP732.1[自动化与计算机技术—检测技术与自动化装置]