AUTOMATED TECHNOLOGY OF THE SATELLITE IONOSPHERE TOMOGRAPHY AND ITS PERSPECTIVES

  1. OAS ”Russian Cosmic Systems”

The description of the automated technology of the ionosphere satellite tomography is presented in the
frameworks of this research. The modeling results for the inverse problem solving are described and the real
tomography reconstructions are represented also. The obtained data comparison was carried out with almost
whole available ionosphere data space based sources: satellite altimeters, satellite “occultation” systems and
with ground based ionosond also. It was shown that due to different physical restrictions the most suitable
information for comparison process with satellite tomography information was ionosond data. Besides it was
revealed a good correlation between two data rows – 84The further development of the technique of satellite
ionosphere tomography is possible in two perspective but connected ways. From one hand it is really important
to solve the problem of phase ambiguity for the measurements. It allows significantly simplifying the data
processing procedure. From the other hand if we remove the receiving segment to the satellite we make possible
the global ionosphere reconstruction in the satellite orbit plane. The first problem might be solved with the aid
of the proposed method of the multifrequency ionosphere sounding which theoretically allows calculating the
absolute TEC on the ray-path between “source and receiver” upon phase signal characteristics. The first problem
might be solved with the aid of the new generation satellite equipment creation which allow developing satellite
segment of the perspective system using small satellites. And the ionosphere state could be reconstructed for
15-100 min time period depends on the satellites amount (5-36). The modeling results of the different ways
of the perspective tomography system space segment realization are showing that the errors of the vertical
distributions of the ionosphere electron concentration will be less than 30