摘要
针对对流层散射信道的衰落特点,提出了一种基于自适应选频的散射调制解调器设计方法。分析了自适应选频技术的理论性能,给出了仿真计算结果,在此基础上提出了一种自适应选频调制解调器硬件设计方案,并给出调制解调器在瑞利衰落信道条件下的测试结果,从而证实了散射调制解调器采用自适应选频技术能够取得较好的性能,为单天线散射设备的开发奠定了基础。
Based on the characteristics of troposcatter channel,a kind of frequency adaptive troposcatter modem design scheme is presented.Firstly,the performance of frequency adaptive technology is analyzed in theory,and the simulation result is presented.Then,based on this,a kind of frequency adaptive troposcatter modem hardware scheme is proposed.Finally,the test result of this modem under the condition of Rayleigh fading channel is presented,which proves that the better performance is obtained by using the frequency adaptive technology,and provides reference for the development of scattering equipment using one antenna.
出处
《无线电工程》
2013年第8期33-35,共3页
Radio Engineering
关键词
散射通信
频率分集
选择式合并
自适应选频
troposcatter communication
frequency diversity
selective combination
adaptive frequency selection
