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Strong disturbance ionosphere parameter inversion method based on ion line spectrum three-peak structure

An ionospheric and parametric technology, applied in the field of ionospheric detection, can solve problems such as Maxwell distribution correction and unreasonable inversion, and achieve the effect of improving inversion accuracy

Active Publication Date: 2017-10-17
XIDIAN UNIV
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Problems solved by technology

Therefore, for most cases, it is unreasonable to use Maxwell distribution correction and inversion

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  • Strong disturbance ionosphere parameter inversion method based on ion line spectrum three-peak structure
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  • Strong disturbance ionosphere parameter inversion method based on ion line spectrum three-peak structure

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Embodiment Construction

[0034] The present invention is described in detail below in conjunction with example, when describing the embodiment of the present invention in detail, for convenience of explanation, what adopted is that my country utilized the ground-based high-power heating facility of the European Incoherent Scatter Radar Association (EISCAT) on September 5, 2010 in The ionospheric heating experimental data obtained nearby and the corrected tripeak spectrum are just examples, which should not limit the protection scope of the present invention. In addition, it should be noted that the super-Gaussian distribution used is an empirical heating electron distribution function, and the ion velocity distribution function is assumed to follow the Maxwell distribution, which should not limit the protection scope of the present invention.

[0035] On September 5, 2010 (three points in time) at In the ionospheric heating experiment carried out nearby, three three-peak spectra with PGM (Purely Gro...

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Abstract

The invention discloses an abnormal incoherent scattering ion line spectrum strong disturbance ionosphere parameter inversion method based on a three-peak structure having a zero frequency peak. The method comprises steps that by adopting incoherent scattering radar observation data, an abnormal incoherent scattering ion line spectrum having a zero frequency peak three-peak structure in a strong disturbance area caused by an ionosphere heating experiment is extracted; a conventional equilibrium state incoherent scattering theory is corrected by adopting Super-Gaussian distribution or Bump-on-tail distribution of heating electrons, and inversion of a three-peak abnormal spectrum is carried out according to the corrected incoherent scattering theory; the correction and the inversion of the extracted abnormal spectrum are carried out, and an inversion result is compared with an uncorrected inversion result, and a better inversion result is used a final inversion result. By aiming at the conventional inversion method only considering correction of a limitation of equilibrium state Maxwell distribution, great errors caused by the conventional inversion process is remedied, and more reasonable estimation of strong disturbance ionosphere parameters is realized.

Description

technical field [0001] The invention belongs to the field of ionospheric detection, in particular to a method for retrieving strongly disturbed ionospheric parameters based on anomalous incoherent scattering ion spectrum with a three-peak structure with a zero-frequency peak, using oscillation double-stream instability and non-Maxwellian velocity distribution functions Inversion of strongly perturbed ionospheric parameters. Background technique [0002] The ionosphere is heated by high-power radio waves, creating a region of strong disturbance near the height of the heat-pump wave reflection. The plasma in the strongly disturbed region is in a non-equilibrium state, and the electrons and ions deviate from the Maxwell distribution of the equilibrium state, thereby affecting the scattered power spectrum received by the detection radar. Currently, incoherent scatter radar is one of the most powerful ground-based detection tools for the ionosphere. However, the existing incohe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 李海英孔鹏飞徐彬吴振森白璐曹运华
Owner XIDIAN UNIV
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