基于动态频谱接入的短波数据传输协议的设计与实现

Design and Realization of HF Data Transmission Protocol Based on Dynamic Spectrum Access

针对短波信道质量变化大的实际,提出了将动态频率预选、自适应变帧长及基于动态信道接入的数传技术应用于短波数据通信,实现在复杂的短波信道条件下数据高效、可靠传输的新思路。设计了可根据信道质量的变化自适应调整参数的数据传输协议,阐述了协议的具体实现方式,给出了动态频率预选、自适应变帧长及基于动态信道接入的数据传输等技术的软件实现流程和计算机仿真结论。

In view of the instability of HF channel,a reliable and efficient protocol used for HF data transmission is designed and realized in the paper. The protocol functions and its application to improve the efficiency and reliability of data transmission on complex HF channel are discussed. The method to realize dynamic frequency preelection is explained, changing frame length adaptively and transmitting data based on dynamic channel access, the program design processes and computer simulations are given in the end.