A Spaceborne Ionospheric Scintillation Monitoring Device Using GPS Signal Phase Change

A GPS signal and monitoring device technology, which is applied in the field of spaceborne ionospheric scintillation monitoring devices, can solve the problems that it is difficult to quickly obtain the global atmosphere, complete coverage of the monitoring area, and unsatisfactory

Active Publication Date: 2014-07-09
BEIJING RES INST OF TELEMETRY
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Problems solved by technology

The above methods all have to rely on special-purpose satellites, and the monitoring time is long, which makes it difficult to meet the complete coverage of the monitoring area, let alone the global coverage monitoring capability, and it is difficult to meet the needs of quickly obtaining global atmospheric and ionospheric information during wartime (The data within 2 to 3 hours is required in wartime), which cannot meet the needs of providing real-time binding of relevant atmospheric parameters for precision strike weapons

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  • A Spaceborne Ionospheric Scintillation Monitoring Device Using GPS Signal Phase Change
  • A Spaceborne Ionospheric Scintillation Monitoring Device Using GPS Signal Phase Change
  • A Spaceborne Ionospheric Scintillation Monitoring Device Using GPS Signal Phase Change

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Embodiment Construction

[0052] The monitoring device of the present invention is mounted on a low-orbit satellite, and performs data processing on navigation signals to obtain ionospheric scintillation detection parameters, obtain ionospheric distribution conditions, and improve ionospheric scintillation and disturbance detection levels.

[0053] The flight altitude of the low-orbit satellite is about 790 kilometers from the ground in an approximate elliptical orbit, and the flight period is about 100 minutes. According to the relevant orbital parameters of the satellite, the relative position relationship between the low-orbit satellite and the GPS satellite can be found in figure 2 , it can be seen from the figure that the GPS satellite signal passes through the atmospheric refraction and scattering, passes through part of the ionosphere to reach the low-orbit flying satellite, and installs an antenna capable of receiving the GPS signal on the satellite, which can receive the refraction and scatteri...

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Abstract

A space-borne ionospheric scintillation monitoring device utilizing GPS signal phase changes, including navigation and positioning channels, ionospheric monitoring channels, navigation and positioning data processors, ionospheric monitoring data processors and high-stable crystal oscillators, positioning receiving antennas and ionospheric Antennas for satellite positioning and ionospheric scintillation monitoring, data processing of navigation signals received by GPS satellite navigation receivers to obtain ionospheric scintillation detection parameters, obtain ionospheric distribution, and improve ionospheric scintillation and disturbance detection levels. The device can make full use of the global coverage and continuous uninterrupted characteristics of GPS satellite navigation signals to improve the monitoring ability of the atmospheric ionosphere. Atmospheric ionospheric scintillation monitoring real-time and global coverage.

Description

technical field [0001] The invention relates to a space-borne ionospheric scintillation monitoring device utilizing GPS signal phase changes, which mainly monitors GPS navigation signal phase changes and jitters, and responds to ionospheric scintillation conditions according to signal phase changes and jitter severity, and belongs to satellite navigation and space weather forecasting technology field. Background technique [0002] The ionosphere is a part of the atmosphere sixty kilometers to several thousand kilometers away from the earth's surface. Due to the influence of solar electromagnetic radiation and high-energy particles, this part of the atmosphere is ionized to form a plasma state. This layer of atmosphere will refract radio signals propagating through it. , Scattering, absorption, scintillation and Faraday rotation and other effects will change the speed, direction, phase, amplitude and polarization state of the propagating signal, and, due to the inhomogeneity ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/20
Inventor 张平李晓东
Owner BEIJING RES INST OF TELEMETRY
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