论文部分内容阅读
针对强湍流的空间相关性特点,拟合了基于1-范数的相关函数,利用修正的球不变随机过程(SIRP)法得到相关K分布随机场,建立了二维相关K分布湍流信道仿真模型;解决了球不变随机过程法固有的特征随机变量各态历经问题;计算了二维相关K分布信道模型的误时隙率和信道容量,并与一维K分布信道模型做比较。结果表明这种模拟湍流信道的方法可以很好地控制K分布湍流分量的分布形式和统计特性,为信道估计的研究奠定了基础。
Aiming at the spatial correlation of strong turbulent flow, the correlation function based on 1-norm is fitted, and the correlated K distribution random field is obtained by the modified SIRP method. The two-dimensional correlated K distribution turbulence channel simulation Model; solves the problem of ergodic random variables inherent in the ball-invariant stochastic process method; calculates the error time-slot rate and channel capacity of two-dimensional correlated K-distribution channel model and compares it with the one-dimensional K-distribution channel model. The results show that this method of simulating turbulent channel can well control the distribution and statistical properties of turbulent component of K distribution and lay a foundation for the research of channel estimation.