Radio tomography of the ionosphere

An overview of tomographic approaches to ionospheric remote sensing in the radio-wave range is provided. Tomographic methods are divided into deterministic and statistical ones. Deterministic tomography problems can be subdivided into ray radio tomography and diffraction radio tomography. The statistical radio tomography approach is used when it is necessary to reconstruct the statistical structure of a great number of inhomogeneities, on the basis of measurements of field statistics (instead of one realization of the reconstruction of an inhomogeneity). Methods of solving radio tomography problems, and their connection with inverse scattering problems, are considered. The results of some initial experiments that show the possibilities of the radio tomography approaches are described. Future applications and problems are discussed.<<ETX>>

[1]  J. Klobuchar,et al.  Application of computerized tomography to the investigation of ionospheric structures , 1990 .

[2]  M. Kaveh,et al.  Reconstructive tomography and applications to ultrasonics , 1979, Proceedings of the IEEE.

[3]  C. Pichot,et al.  Diffraction tomography: contribution to the analysis of some applications in microwaves and ultrasonics , 1988 .

[4]  G. Schmidt,et al.  The localization of ionospheric irregularities by the holographic method , 1975 .

[5]  R. A. Silverman,et al.  Wave Propagation in a Turbulent Medium , 1961 .

[6]  L. D. Faddeev,et al.  Inverse problem of quantum scattering theory. II. , 1976 .

[7]  E. Andreeva,et al.  Phase-difference radiotomography of the ionosphere , 1992 .

[8]  D. Lesselier,et al.  Iterative Solution of Some Direct and Inverse Problems in Electromagnetics and Acoustics , 1985 .

[9]  B. Hoenders.  The Uniqueness of Inverse Problems , 1978 .

[10]  Elena S. Andreeva,et al.  RADIOTOMOGRAPHIC RECONSTRUCTION OF IONIZATION DIP IN THE PLASMA NEAR THE EARTH , 1990 .

[11]  Sanborn C. Brown,et al.  Propagation of electromagnetic waves in plasma , 1962 .

[12]  K. C. Yeh,et al.  Limitations of ionospheric imaging by tomography , 1991 .

[13]  A. Devaney.  Geophysical Diffraction Tomography , 1984, IEEE Transactions on Geoscience and Remote Sensing.

[14]  S. Ivansson,et al.  Seismic borehole tomography—Measurement system and field studies , 1986, Proceedings of the IEEE.

[15]  Jeffrey Robert Austen,et al.  Ionospheric imaging using computerized tomography , 1988 .

[16]  Roger G. Newton,et al.  Inverse scattering. II. Three dimensions , 1980 .

[17]  E. Tereshchenko,et al.  Determination of the turbulent spectrum in the ionosphere by a tomographic method , 1992 .

[18]  W.Ross Stone.  A holographic radio camera technique for the three-dimensional reconstruction of ionospheric inhomogeneities , 1976 .