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就高超声速再入体尾迹等离子体场而言，为进行其亚密湍流雷达散射截面的理论分析，提出了计算湍流尾迹脉动等离子体场强的理论模型及求解方法，即在研究高超声速尾迹流动特征的基础上，推导、使用包括化学组份浓度脉动强度的k－ε－g湍流模型，用以封闭高超声速粘性尾迹湍流运动时均控制方程组，并用全隐式有限差分法求解，算例小钝锥体的飞行条件为零攻角、M_∞＝21．3，Re_（∞D）＝1．33×10~6；M_∞＝20．5；Re_（∞D）＝3．22×10~5，计算结果得到了合理的参数分布；考虑电磁波在上述等离子体介质中的传播，以单电子多次散射模型─—畸变波Born近似方法，计算了湍流尾迹脉动等离子体雷达散射截面，给出散射能（RCS）在不同极化状态下的分布，分析了散射背景场脉动湍流对电磁波在其中传播的影响．
For the hypersonic reentry wake plasma field, in order to carry out the theoretical analysis of its subdivision turbulent radar cross section, a theoretical model and a solution method for calculating the turbulent wakefield plasma field strength are proposed. That is to say, Based on the characteristics of k-ε-g turbulence model, the k-ε-g turbulence model, which includes the pulsation intensity of chemical components, is derived and used to control the equations when the hypersonic viscous wake turbulent motion is closed, and solved by the implicit finite difference method. The flight conditions of the small dumb cone are zero angle of attack, M_∞ = 21.3, Re_ (∞ D) = 1.33 × 10 ~ 6, M_∞ = 20.5, Re_ (∞D) = 3.22 × From 10 to 5, the reasonable parameter distribution was obtained. Considering the propagation of electromagnetic wave in the above plasma medium, the scattering cross section of turbulent wake pulsed plasma radar was calculated by single-electron multiple scattering model-Born approximation of distortion wave. The distribution of scattering energy (RCS) under different polarization states is given. The influence of pulsating turbulence in background field on the propagation of electromagnetic waves is analyzed.