无线视频通信中信道特性的研究

Research on the channel characteristics in wireless video communication

在无线视频通信中,无线信道环境的好坏将直接影响到通信质量,信号传输中的带宽波动、高误码率和接收的异种性为视频通信系统的设计带来了极大的困难。讨论了无线信道电波传播的特性,给出了无线时变衰落信道的模型并分析了视频传输的信道失真,为复杂无线环境下的视频通信系统的设计提供了理论依据。

in wireless video communication, environment of wireless channel affected directly the communication quality. The bandwidth fluctuation, high BER and heterogeneity of receiving brought the great difficulties to designing video communication system. This paper discussed the characteristic of electric wave transmission in wireless channel, gave the model of wireless time - variant fading channel, analyzed channel distortion of video transmission. It offered theoretical basis to design video communtmication system in complex wireless environment.