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根据随机介质波传播理论,开展脉冲波在星际空间等离子体介质中的传播特性的分析方法研究.在强起伏条件下,推导双频互相关函数的二阶矩和四阶矩方程,利用不同电子密度模型,计算双频衍射强度相关函数和闪烁指数,并应用到闪烁的动态谱观测和相关分析中,得到自相关图谱、相关带宽和相关时间等闪烁特征参数,为脉冲在等离子体中的传输特性的分析,提供必要的理论基础.
According to the theory of random medium wave propagation, the analytical method of the propagation characteristics of the pulse wave in the interstellar space plasma medium is studied. Under the condition of strong undulation, the second-order moment and fourth-order moment equations of the cross-correlation function are deduced. Density model to calculate the correlation function of double-frequency diffraction intensity and the scintillation index, and applied to the scintillation dynamic spectrum observation and correlation analysis to get the scintillation characteristic parameters such as auto-correlation spectrum, correlation bandwidth and related time, as the pulse transmission in the plasma Characteristics of the analysis, to provide the necessary theoretical basis.