一种新的短波实时信道估值方法

A Novel Method of Real Time Channel Evaluation on HF Communication

针对目前短波独立信道探测设备投入高,而自适应通信设备探测功能弱的现状,提出了一种新的短波实时信道估值方法,通过短波电台发射和接收探测信号,以较低投入实现了整个短波频段的信道估值。并重点对探测方案进行了优化,首先使用VOACAP的预测结果缩小探测范围,并且通过对短波相邻信道相关性的分析,在原有等间隔探测的基础上提出了两级探测方式。仿真结果表明,该探测方案在探测速度和精度方面进行了有效平衡,性能优于等间隔探测。

Traditional independent HF frequency sounding devices cost too much, while HF adaptive communi- cation devices only have little detection function. In order to solve this problem, a novel HF channel evaluation sys- tem was designed, by emitting sounding signal from radio, the whole HF spectrum sounding could be executed at a relatively low investment. And sounding scheme optimization was focused on. The result of VOACAP was used to reduce sounding scale, and by analyzing the correlation of adjacent channel, the two level sounding scheme was proposed based on equal intervals sounding. The simulation results shown that this scheme balanced sounding speed and accuracy, and performed better than equal intervals sounding.