分佈式天線在室內無線通訊之應用效能實測分析

Abstract

本文旨在研究如何在室內環境下獲得較好之無線通訊品質，特別是利用實 測的方法取得分佈式天線系統在一般大樓內的信號傳輸品質，包含時間延 遲分佈（Time Delay Spread） 及通道內之信號衰減（Path Attenuation ） 特性，以作為系統設計的參考。為此而設計的系統雛形，其硬體規劃 與製作也因應實際的空間特徵調整，以獲得良好的信號品質。 The purpose of this research is to improve the quality of indoor wireless communication channel, especialy by means of distributed antenna systems. We evaluate the performance of distributed antenna system by comparing it's channel parameter such as time delay spread and path attenuation with traditional central antenna system's. A detailed description of the measurement system is also given in this thesis.