一、前言通信系统的最佳设计方案是与信道特性密切相关的。因此,对信道模型的研究是进行通信系统设计和模拟的依据。对流层散射信道是一种随机时变信道。虽然随机时变信道的一般模型早已由Kailath和Bello提出,但真正能对散射信道模型进行定量描述还在资料之后。资料对Bello模型进行了推广,使之适用于更广泛的信道条件。本文先论述对流层散射信道模型,给出了部分计算结果,然后说明在通信系统设计和试 I. INTRODUCTION The best design of a communication system is closely related to the channel characteristics. Therefore, the study of channel model is the basis for the design and simulation of communication system. The troposcatter channel is a random time-varying channel. Although the general model for stochastic time-varying channels has long been proposed by Kailath and Bello, the quantitative description of the scattering channel model is still behind the data. The data extends Bello’s model to a wider range of channel conditions. This paper first discusses the tropospheric scattering channel model, given some of the results, and then illustrate the communication system design and testing