无线多媒体通信新技术  

New Techology of Wireless Multimedia Communications

作　　者：张煦 

出　　处：《电信快报》1999年第8期3-5,共3页Telecommunications Information

摘　　要：指出移动通信的明确方向是由个人便携终端实现无线多媒体通信。依次简述语音、图视和远程书写、图形等的信源编码技术，统计复用多址方式，多层正交调幅方式，信道编码利用格状编码和 Ｔｕｒｂｏ 码等技术的发展可能性。最后提到智能收发信机的软件无线电技术和智能天线与自适应形成束射技术的发展可能性。The paper indicates that wireless multimedia communication is the main trends of personal mobile communication.Then,it briefly describes the possibilities of developing source coding for speech,video,telewriting and graphics,statistical multiplexing for multiple access, multi level quadrature amplitude modulation,arthogonal frequency division multiplex,Trellis coding and Turbo code for channel coding.Finally,it points out the prospects of technologies such as software radio used by intelligent transceiver,smart antennas and adaptive beam forming.

关 键 词：无线通信 移动通信 个人通信 多媒体通信 

分 类 号：TN919[电子电信—通信与信息系统] TN92[电子电信—信息与通信工程]