泛Kriging法在海上短波通信频率预测中的应用

频率预测是保障短波通信的关键技术。针对现有短波频率预测方法中数据处理过程复杂、输入参数条件苛刻、工程实现难度较大等问题，提出了一种基于泛克里格(Universal Kriging)空间重构法的海上短波通信频率预测方法。利用海军频率管理系统中大量的实用通信频率数据，基于球状模型、指数模型、高斯模型三种典型变异函数理论模型，研究了通信频率的空间相关性，建立了反映沿纬度方向通信频率变化剧烈程度的漂移表达式，通过交叉重构法对海上短波通信频率进行预测。实验结果表明，泛克里格法在海上短波通信频率预测中具有良好的适用性和可靠性，对未知海域短波通信频率的预测优选具有重要意义。

Application of universal Kriging algorithm in maritime shortwave communication frequency prediction

Frequency prediction is the key technology to ensure shortwave communication.Aiming at the problems of complex data process,harsh input parameters,and difficult engineering implementation in the existing shortwave frequency prediction methods,a method of maritime shortwave communication frequency prediction based on Universal Kriging space reconstruction method is proposed.Based on a large number of practical frequency data in the naval frequency management system,and three typical variogram functional models(spherical model,exponential model,and Gaussian model),the spatial correlation of communication frequency is studied,the drift expression reflecting the degree of communication frequency variation along the longitude directions is established,and maritime shortwave communication frequency is predicted with the cross-reconfiguration.The experimental results show that Universal Kriging method has good applicability and reliability in the prediction of maritime shortwave communication frequency,and it has great significance to predict the shortwave communication frequency in the unknown ocean environment.