无人机短波频谱监测信道的改进ITS模型

Improved ITS Model of Unmanned Aircraft HF Spectrum Monitoring Channel

无人机所处的复杂电磁环境等条件使其短波频谱监测信道复杂多变,利用传统方法对其建模在灵活性、复杂度和准确性上性能较差。根据无人机短波频谱监测信道的特点,利用Alpha稳定分布等理论对传统ITS模型进行改进,提出了一种适用于此类信道的确定性模型。仿真结果表明,改进ITS模型可以有效逼近短波频谱监测信道特性,并在灵活性和复杂度上具有优势。

Complicated electromagnetic environment the unmanned aircrafts work in makes the HF spectrum monitoring channel complex and varied,which leads to poor performance in flexibility,complexity and accuracy when traditional methods are applied. According to the characteristics of the HF spectrum monitoring channel unmanned aircrafts work in,a suitable deterministic model is proposed by utilizing such theories as Alpha stable distribution to improve traditional ITS model.Simulation results show that the improved model can approach the characteristics of HF spectrum monitoring channels effectively and has advantages in flexibility and complexity.