An Improved Method for the Inversion of Backscatter Ionograms by Using Neighborhood-Aided and Multistep Fitting

To solve the problem that a parameter search easily falls into local optimum and two-dimensional electron density profile construction error is large in process of backscatter ionogram inversion, an improved method using neighborhood-aided multistep fitting proposed. The ionospheric inversion results adjacent space are combined reconstructed by correction method. introduction auxiliary information sources addresses defects conventional genetic algorithm. region used to describe uniformity global inhomogeneity dividing region. experimental show proposed can improve accuracy provide reliable support for tracking radio ray trajectories.