详细讨论了全息干涉数据的物理意义，并对用Ａｂｅｌ变换反演等离子体密度进行了数值研究。采用了将等离子体折射率作有限的Ｆｏｕｒｉｅｒ－Ｂｅｓｓｅｌ展开，在最小均方差的意义下求得展开系数，即进行Ａｂｅｌ变换反演。数值计算结果表明，只要电子密度足够低（约０．１倍对应于探针光波长的临界密度），即使成象系统的物平面与对称轴有所偏离，所采用的方法仍有相当高的精度 The physical meaning of the holographic interference data is discussed in detail, and the numerical study on the inversion of the plasma density by Abel transform is carried out. The Fourier-Bessel expansion with limited plasma refractive index was adopted, and the expansion coefficient was obtained in the sense of minimum mean square error, that is, the Abel transform inversion was performed. The numerical results show that the method used is quite high even if the electron density is sufficiently low (about 0.1 times the critical density of the probe light wavelength) that the object plane of the imaging system deviates from the axis of symmetry Accuracy