移动台OTA暗室的纹波测试及其仿真分析  

Ripple Test Analysis and Simulation for Anechoic Chamber Used in Mobile Stations OTA Performance Measurement

作　　者：沈远茂[1] 陶洪波 李吉 石丹[1] 高攸纲[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876 [2]国家无线电监测中心检测中心,北京100037

出　　处：《微波学报》2013年第2期25-29,共5页Journal of Microwaves

基　　金：国家自然科学基金(60901049);中央高校基本科研业务费专项资金(BUPT 2009RC0309)

摘　　要：作为全面评价移动台空间射频性能的一种新方法,OTA测试的不确定度会受到暗室纹波的影响。通过对OTA暗室纹波测试过程、计算方法及模型特点的介绍和分析,首先确定了基于几何光学法(GO)的仿真研究方法,然后建立了与实物对应的仿真模型、编写了相关的MATLAB程序,最后成功实现了对OTA暗室纹波测试过程的仿真计算。仿真与实测结果的基本吻合证明了上述方法能够有效实现对暗室纹波特性的预测和评估。同时,研究结果也为将来提高预测精度、展开更为细致的影响因素分析提供了必要的基础和参考。As a method to evaluate the overall radio frequency performance of a mobile station, the OTA test would be affected by the ripple in OTA anechoic chamber. After introduction to the ripple test procedures, data processing methods and simulation models, research method based on GO theory was selected to fulfill the subsequent simulations firstly. And then the model corresponding to a real OTA anechoic chamber was set up, and the relevant MATLAB programs were wrote out. Finally, a typical ripple test was simulated successfully. Simulation coincides with measurement results basically, therefore the simulation technique above was proven to be a valid tool to estimate the ripple quality of a OTA anechoic chamber. On the other hand, research works here could also provide some necessary reference and foundation to future investigation upon the influence factors.

关 键 词：空间测试 纹波测试 几何光学法(GO) 不确定度 移动台 

分 类 号：TN015[电子电信—物理电子学]