卫星移动信道中色高斯随机过程仿真方法研究

 对频率选择性信道和频率非选择性信道,高斯随机过程是信道建模的基础.深入探讨了基于有限个谐波重叠产生有色高斯随机过程的方法,利用所产生的高斯随机数,对Loo模型进行了仿真,给出了这个模型的理论和仿真的概率密度函数和累积分布函数图.仿真结果表明,用有限个加权正弦信号的叠加近似有色高斯过程的方法不仅简单、准确,而且其实现性和实时性都很好.

Study of colored gaussian random process simulation method in mobile satellite channel

The realization of coloured Gaussian random ing of both frequency-nonselective and frequency-selective processes is of the utmost importance in the modelmobile radio channels. It is studied a fundamental method which is based on a superposition of a finite number of harmonic functions in depth. Using results of the Gaussian process, Loo model is simulate. It is given the probability density function and the cumulative distribution function of theoretical model and simulation. Simulation results show that a superposition of a finite number of harmonic functions to approximate coloured Gaussian process, the method is simple and accurate, but its realization and real-time are very good.