从高频垂测反射回波散射谱反演电离层不均匀结构方法初探

ON THE INVERSION OF IONOSPHERIC IRREGULARITIES FROM THE HF REFLECTED WAVE SPECTRA OF VERTICAL SOUNDING

在背景各向异性不均匀的随机起伏电离层中高频电波散射理论的基础上，进行了不同漂移速度方向下高频垂测反射回波的相位和幅度功率谱的数值计算．结合理论分析，提出了根据非常波和寻常波的相位和幅度功率谱的谱线振荡形态以及变化趋势的分析来估计电离层不均匀体的谱结构以及漂移速度的大小及方向等参量的新方法．

On the basis of newly developed theory of HF scattering in an tUrbulent ionosphere with an anisotropic and inhomogeneous background, a new method for inversion of some parameters of ionospheric irregularties from the phase and amplitude spectra of reflected wave of vertical sounding is proPOsed in this paper.Numerical calculations and theoretical analyses indicate that it is possible to estimate the spectrum structUre and the amplitude as well as the direction of drift velocity of ionospheric irregularities by the oscillating shape and the changing pattern of the spectra curves of the ordinary wave and extraordinary wave.