摘要
为了使数据链达到更高效的通信和射频隐身能力,构建了一种波形参数优化的数学模型.首先研究了信道编码码长、调制方式、信道编码码率等波形参数对数据链的通信速率以及截获概率的影响;其次以数据链的通信速率和截获概率为优化目标构建了参数优化的数学模型,并对模型进行了简化、验证以及数学求解;最后基于该模型在FPGA(现场可编程门阵列)平台上提出了自适应调制模块方案.仿真结果表明:与固定参数数据链和Link16数据链相比,该模型获得了不同程度的优势提升.实测结果表明:该自适应调制模块能够配合优化模型在FPGA平台上生成最优的通信波形.
A mathematical model of waveform parameters optimization was constructed in order to achieve more efficient communication and radio frequency stealth capability.Firstly,the influence of wave parameters such as channel coding length,modulation mode,channel coding rate and others on the communication rate and acquisition probability of data link was studied.Secondly,the optimiza-tion model with the target to optimize the communication rate and intercept probability was construc-ted,simplified,verified and solved.Thirdly,based on the model,an adaptive modulation module scheme was proposed on the FPGA platform.Simulation results show that compared with the fixed parameters data link and the link1 6 data chain,the advantages of different degrees of improvement are obtained in the model.Experimental results show that a best communication waveform with the opti-mal model can be generated by the adaptive modulation module on the FPGA platform.
作者
白迪
田茂
陈小莉
BaiDi Tian Mao Chen Xiaoli(School of Electronic Information, Wuhan University, Wuhan 430079, Chin)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第9期11-15,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(61261010)
关键词
自适应
数据链
调制
射频隐身
通信波形
adaptive
datalink
modulation
radio freqency （RF）stealth
communication waveform
