摘要
介绍了短波无线信道的传播特性,重点介绍了短波信道的损耗特性,给出了短波在天波传输和地波传输两种方式下的损耗特性的估算方法,分析了短波小尺度衰落时采用的Clarke和Jakes仿真模型。采用MATLAB软件仿真了短波在天波传输方式下的大尺度衰落特性、小尺度衰落特性和误码率特性,得到了短波通信时的中值衰落波形、总衰落波形和误码率仿真结果,可以为外场试验提供参考数据,为联合仿真提供短波信道物理层特性。
IN this paper,introducing the propagation characteristics of high frequency wave wireless channel,focus on introducing the loss characteristics of high frequency wave channel,the estimation method of two ways loss characteristics of high frequency wave in the sky wave transmission and ground wave transmission is given,the analysis of Clarke and Jakes simulation model in high frequency wave small scale decline is given. Simulating large scale fading characteristics,small scale fading characteristics and BER features of high frequency wave under the sky wave transmission method in using the MATLAB software,got the value decline waveform,the general decline in waveforms and BER simulation results of high frequency wave communication,providing reference data for field test,providing physical characteristics of high frequency wave channel for joint simulation.
出处
《火力与指挥控制》
CSCD
北大核心
2014年第S1期55-58,共4页
Fire Control & Command Control
