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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.
In order to make the data link more efficient for communication and RF stealth, a mathematical model of waveform parameter optimization is constructed.Firstly, the communication speed of data parameters such as channel coding code length, modulation method, channel coding rate and so on, Secondly, the mathematical model of parameter optimization is established based on the communication rate and probability of interception of the data link. The model is simplified, verified and solved. Finally, based on the model, the FPGA (Field Programmable Gate Array ), An adaptive modulation scheme is proposed. The simulation results show that the proposed model has some advantages over the fixed data chain and the Link16 data chain. The measured results show that the adaptive modulation module can adapt to the optimization model Generate optimal communication waveform on FPGA platform.