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A method and device for detecting the total number of ionospheric electron densities

A technology of electron density and ionosphere, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of insufficient single-station accuracy and difficult equipment maintenance, so as to avoid remote data transmission, convenient equipment maintenance, and high data space density Effect

Inactive Publication Date: 2019-10-11
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another purpose of the present invention is to solve the technical problems existing in the prior art; to provide a dual-station layout using a 10m-level short baseline, which can overcome the shortcomings of long-distance multi-station data transmission, difficult equipment maintenance, and insufficient single-station accuracy. A method and device for detecting the total number of ionospheric electron densities that are convenient for management and can be widely used in regional ionospheric refraction correction

Method used

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  • A method and device for detecting the total number of ionospheric electron densities
  • A method and device for detecting the total number of ionospheric electron densities
  • A method and device for detecting the total number of ionospheric electron densities

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Embodiment 1

[0038] An embodiment of the present invention provides a method for detecting the total number of ionospheric electron densities, comprising the following steps:

[0039] Step S0, set up equipment and record data, set up two dual-frequency GPS receiver antennas 1 in the area to be tested, the distance between the two dual-frequency GPS receiver antennas 1 is about 10m, and connect to the corresponding Two dual-frequency GPS receivers 3 are connected with the same computer 5 through the communication cable 4, and the computer terminal control software of the dual-frequency GPS receiver 3 is used to control the two dual-frequency GPS receivers through the computer 5 Receiver 3 records data, and preserve in computer 5, wherein, described data comprises: GPS satellite ephemeris data, time, dual-frequency GPS receiver antenna 1 position, GPS satellite P1 code phase and pseudo-range and signal-to-noise ratio, P2 code phase, pseudorange and signal-to-noise ratio;

[0040] It should ...

Embodiment 2

[0066] It should be noted that this embodiment 2 is a device embodiment, and it belongs to the same technical concept of the invention as the above-mentioned method embodiment 1. Please refer to the method embodiment 1 for the content not described in detail in this embodiment.

[0067] In this example, if Figure 6 As shown, the device for applying the method for detecting the total number of ionospheric electron densities above includes: including two dual-frequency GPS receiver antennas 1 for receiving GPS satellite signals, two coaxial cables 2 and two dual-frequency GPS receivers The two dual-frequency GPS receivers 3 connected to the antenna 1, and the same computer 5 connected to the two dual-frequency GPS receivers 3 through the communication cable 4.

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Abstract

The invention relates to a method and device for detecting the ionosphere total electron density. In a to-be-tested area, two dual-frequency GPS receiver antenna with a spacing of about 10 meters are put up to receive GPS satellite signals, and the GPS satellite signals are transmitted into two dual-frequency GPS receivers by a coaxial cable wire, satellite signals are processed by the dual-frequency GPS receiver, the received data is saved through a communications cable wire in a computer, data for one day is taken, and processing is conducted on the data using a software program. A polynomial model is established to calculate the delays of the dual-frequency GPS receiver and the satellite hardware, skewed total electron density is obtained after the removal of the delays of the dual-frequency GPS receiver and the satellite hardware, the total electron density of two skewed dual-frequency GPS receivers is integrated, through a projection function, is converted to a vertical total electron density. By the adoption of the 10 meter rank short base line based on the foundation GPS double-station layout mode, the ionosphere total electron density is detected, the accuracy is high, and data storage, management and device maintenance are easy.

Description

technical field [0001] The invention relates to the technical field of ionospheric electron detection, in particular to a method and device for detecting the total number of ionospheric electron density. Background technique [0002] The detection of the total number of ionospheric electron density can be divided into the beacon method and the Faraday rotation method according to the principle method, and the beacon method is generally used at present. There are a large number of electrons in the ionosphere. The beacon method uses the influence of electron density on the propagation speed of electromagnetic waves to obtain the total number of electron densities by taking the difference of the dual-frequency signal. The Faraday rotation method uses the influence of electron density on the polarization of electromagnetic waves to detect the total number of electron densities. The electromagnetic wave frequencies corresponding to the two methods are different. Generally, the el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/00
Inventor 周晨赵家奇赵正予
Owner WUHAN UNIV
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