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Ionized layer obscuration retrieval method based on two-parameter mixture 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: 2015-09-23
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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  • Ionized layer obscuration retrieval method based on two-parameter mixture regularization
  • Ionized layer obscuration retrieval method based on two-parameter mixture regularization
  • Ionized layer obscuration retrieval method based on two-parameter mixture 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 ionized layer obscuration retrieval method based on two-parameter mixture regularization. The ionized layer obscuration retrieval method is characterized by including the steps that 1, satellite observation data are preprocessed to obtain observation values; 2, a GPS precise ephemeris is used for obtaining satellite coordinates of the needed moment through interpolation; 3, the GPS double-frequency observation values are used for calculating the TEC on a propagation path; 4, a two-parameter mixture regularization method is used for retrieving the electron density of an ionized layer. The calculation precision of the electron density of the ionized layer is improved, the influence of measurement errors can be greatly reduced, and therefore the retrieval precision of the electron density is improved.

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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IPC IPC(8): G06F19/00
Inventor 汤俊李长春
Owner EAST CHINA JIAOTONG UNIVERSITY
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