摘要
大气噪声是短波天波信道的主要影响因素之一,如何生成符合实际信道特性的大气噪声对于宽带短波信道模拟器研制具有重要作用。在分析稳定分布定义与性质的基础上,针对大气噪声特性,提出了一种基于稳定分布的大气噪声生成算法。仿真结果表明,利用该方法产生噪声更加符合信道实际情况。
As atmospheric noise is one of the main factors affecting HF channel characteristics,the method of generating atmospheric noise in line with real channel plays an important role in the research of wide-band HF channel simulation systems.By introducing the alpha stable distribution and aiming at the atmospheric noise property,a noise generating algorithm based on alpha stable distribution is suggested and applied in the wide-band HF channel simulator.Results show that the algorithm could predigest the simulation system with better performance.
出处
《信息工程大学学报》
2010年第2期214-217,233,共5页
Journal of Information Engineering University
基金
科研基金资助项目
