摘要
简要介绍了近年来国外大容量散射通信的发展水平和主要技术特点,并根据我国现有的技术基础和对大容量散射通信的需求背景等因素对我国的16Mbps大容量散射调制解调器和编解码器的设计方案进行了探讨。最后分别给出了16Mbps大容量散射通信系统在白高斯噪声信道、信道模拟器及实际野外信道上的测试结果,从而证实了大容量散射调制解调器在采用自适应判决反馈均衡及Turbo乘积码的技术体制下,具备了可靠传输16Mb/s的数字信号的能力。
The recent development and main technical characteristics of high-speed troposcatter communication in the world is summarized in the paper, and the scheme of high-speed troposcatter modem ＆ decoder is also discussed based on our technique ability and requirements. Finally, the test results of 16Mbps troposcatter modem on AWGN channel, wireless channel emulator and realistic channel are given. It proves that the modem is capable of transmitting 16Mbps digital signal reliably which adopts DFE and Turbo product code.
出处
《无线电通信技术》
2008年第3期16-18,共3页
Radio Communications Technology
关键词
大容量散射
自适应判决反馈均衡
TURBO乘积码
信道模拟器
high-speed troposcatter communication
adaptive decision-feedback equalizer
Turbo product code
wireless channel emulator
