海上短波通信频率优选技术现状与分析

Status and Analysis of Optimum Frequency Selection for Maritime HF Communications

短波信道因受电离层变化影响而不能及时实现频率的优选,制约了短波远程通信效果的提升。在分析了频率预测技术和频率探测技术优缺点的基础上,分别从预测和探测相分离与相结合两方面对当前海上短波远程通信频率优选技术的应用现状进行了分析。针对频率优选技术在海上远距离通信中的应用需求,提出了一种预测与探测组合应用的新模式,梳理了应用模式的实施流程,对海上短波通信频率优选的实现具有一定的参考价值。

Duo to the variation of ionosphere, it is difficult to select the optimum frequency of HF communication, thus restricting the performance improvement of HF telecommunication. Based on advantage and disadvantage analysis of frequency prediction and frequency sounding technology, the application status of optimum frequency selection technology is summarized systematically from separation and combination of prediction and sounding. Aiming at the demand of optimum frequency selection technology in long-distance marine communication, a novel integrated mode of frequency prediction and frequency sounding is proposed, the implementation process of application mode is combed up, thus providing certain reference for optimum frequency selection of maritime HF communication.