随着当今信息技术和OA(办公室自动化)技术的发展,建筑物内的各种计算机终端数目越来越多。为了使各种终端易于移动、安装及避免室内复杂、昂贵的布线,近几年随之出现了建筑物内(室内)无线通信的概念。而建筑物内的无线通信信道很恶劣,难于预测。本文首先介绍了研究室内通信的原因及现存的室内通信系统,最后介绍了对付这种信道所常用的一些方法。 With the development of information technology and OA (office automation) technology today, the number of various computer terminals in a building is increasing. In order to make various terminals easy to move, install and avoid complicated and expensive indoor wiring, the concept of in-building (indoor) wireless communication has emerged in recent years. The wireless communication channel in the building is very poor, difficult to predict. This article first introduces the reasons for the study of indoor communications and the existing indoor communications system, and finally introduces some of the methods commonly used to deal with this channel.