基于球状模型的短波频率泛克里金重构算法

Short-wave Frequency Universal Kriging Reconstruction Algorithm Based on Spherical Model

针对现有短波频率优选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不足,结合电离层变化特性,提出了一种基于球状模型的泛克里金法,应用于短波频率的重构。利用短波频率管理系统中大量的实测频率数据,构建了符合频率数据变化特征的基于球状模型的变异函数,建立了反映沿经度、纬度及水平方向通信频率变化剧烈程度的漂移表达式。随机选取多个样本数据,通过交叉重构法对短波频率数据进行重构。实验结果表明,基于球状模型的泛克里金法具有较高的频率重构精度,能够应用于短波通信频率的重构,特别是满足军事通信方面对短波频率优选手段的需求。

In order to overcome the shortcomings of the existing shortwave frequency optimization methods,such as complex data processing,harsh input parameters condition and difficult engineering implementation,a spherical model based universal Kriging method is proposed to reconstruct the shortwave frequency.Based on a large number of measured frequency data in short wave frequency management system,the variation function based on spherical model conforming to frequency date variation feature is constructed,and the drift expression reflecting the drastic change degree of communication frequency along longitude,latitude and horizontal direction is established.Multiple sample data are randomly selected and the short wave frequency data are reconstructed by cross-reconstruction method.The experimental results show that the universal Kriging method based on spherical model has high frequency reconstruction accuracy,and can be applied to the frequency reconstruction of HF communication,especially capable of meeting the requirements of short-wave frequency optimization methods in military communication.