基于低轨卫星移动通信业务的频谱占用度预测

Spectrum Occupancy Prediction based on LEO Satellite Mobile Communication Services

针对低轨卫星移动通信业务下行链路使用的频段137~138 MHz环境复杂且需要与其他非同步卫星协商使用该频段的实际问题,结合厦门大嶝站实际的频谱监测数据,利用多元线性回归模型,对频段占用度进行预测。首先对实际的频谱数据进行处理,其次分析各个变量对频谱占用度的权重大小,最后求解模型中的各个参数。实验结果表明,该模型的预测准确率高达78%。

In view of the complex environment of the LED satellite mobile communication service downlink frequency band 137~138 MHz and the need to coordinate the use of this frequency band with other nonsynchronous satellites,combined with the actual spectrum monitoring data of Xiamen Dadeng Station,a multiple linear regression model is used to predict the frequency band occupancy.Firstly,the actual spectrum data is processed,then the weight of each variable to the spectrum occupancy is analyzed,and then each parameter in the model is solved.Finally,the experimental results indicate that the prediction accuracy of this model is up to 78%.