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An ionospheric occultation inversion method based on double-parameter hybrid regularization

A dual-parameter, ionospheric technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems affecting inversion accuracy, etc.

Inactive Publication Date: 2017-07-21
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

In this process, if there is a certain error in the inversion result of the upper layer, the error will be amplified in the recursive process, thus affecting the accuracy of the inversion

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  • An ionospheric occultation inversion method based on double-parameter hybrid regularization
  • An ionospheric occultation inversion method based on double-parameter hybrid regularization
  • An ionospheric occultation inversion method based on double-parameter hybrid regularization

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the scope of the present invention is not limited to the following embodiments.

[0036] In order to verify the feasibility of the ionospheric occultation inversion method based on the double-parameter hybrid regularization of the present invention and its superiority over the Tikhonov regularization and Abel integral transformation inversion methods, the COSMIC ionospheric occultation inversion method on August 6, 2011 was selected. star data inversion. The retrieved profile was compared with the detection results of the altimeter Jicamarca (76°W, 11.9°S) station.

[0037] (1) Obtain COSMIC ionospheric occultation observation data and altimeter Jicamarca station data on August 6, 2011;

[0038] (2) Data preprocessing. Detection and repair of GPS cycle slip;

[0039] (3) Using GPS dual-frequency observations to calculate the TEC on the pro...

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Abstract

The invention discloses an ionospheric occultation inversion method based on double-parameter mixed regularization, which is characterized in that it includes: (1) preprocessing satellite observation data to obtain observation values; (2) using GPS precise ephemeris Interpolate the satellite coordinates at the desired moment; (3) utilize GPS dual-frequency observations to calculate the TEC on the propagation path; (4) double-parameter hybrid regularization method to invert ionospheric electron density; the present invention improves the calculation of ionospheric electron density. The accuracy of the density can greatly reduce the influence of measurement errors, thereby improving the inversion accuracy of the electron density.

Description

technical field [0001] The invention relates to the fields of satellite geodesy and atmospheric detection, in particular to an ionospheric occultation inversion method based on double-parameter hybrid regularization. Background technique [0002] The ionosphere is a part of the earth's near-Earth space environment where human beings live, and is closely related to human activities. A full understanding of the ionosphere is an important basis for human beings to understand and utilize their own living environment. Its activities and characteristics directly affect radio communication, satellite precision navigation and positioning, space measurement and control of radio technology, and other related fields. Therefore, it is of great scientific, economic and military significance to monitor and study various phenomena in the ionosphere to reveal the physical mechanism behind them. [0003] Ionospheric detection has a long history. Global Positioning System (Global Positionin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 汤俊李长春
Owner EAST CHINA JIAOTONG UNIVERSITY
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