Ionospheric scintillation monitoring system based on Beidou navigation

Abstract

The invention discloses an ionospheric scintillation monitoring system based on Beidou navigation, comprising: an antenna for receiving Beidou satellite signals, and transmitting the Beidou satellite signals to the receiver for processing; and carrier phase φ information are transmitted to the computer; the computer includes a data acquisition and analysis module and a system display module, and the data analysis module processes the satellite signal strength SI and carrier phase φ information output by the hardware, and performs data display through the system display module. Beneficial effects: this embodiment adopts an internal crystal oscillator source, which has stable frequency and low phase noise, and has strong anti-interference ability. The computer directly outputs the signal strength SI and carrier phase φ information of the satellite signal, which can be used to calculate the scintillation of the ionosphere, which is more convenient, simple, stable and reliable than the original equipment.

Description

technical field [0001] The invention belongs to the technical field of Beidou satellite monitoring and ionospheric monitoring, and in particular relates to an ionospheric scintillation monitoring system based on Beidou navigation. Background technique [0002] When radio signals transmitted by satellites pass through the ionosphere, the irregular structure of the ionosphere will cause rapid and random fluctuations in signal strength and phase. This phenomenon is called ionospheric scintillation. Ionospheric scintillation often causes bit errors and signal distortions in signals received by ground receivers, thus affecting the reliability and accuracy of navigation and communication systems. Therefore, the observation and study of ionospheric scintillation is not only an important means to study the irregular structure and changing characteristics of the global ionosphere, but also becomes a problem that people pay attention to as the global navigation and communication syste...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing ionospheric scintillation monitoring equipment adopts temperature compensated crystal oscillator (TCXO), which often produces noise that cannot be filtered out by the low-pass filter. This kind of ionospheric scintillation monitoring equipment has poor anti-interference ability, and most of them are the simplest circuit design

In the process of use, it is mainly to obtain data, the reliability of the equipment is poor, the network communication cannot be guaranteed, the equipment cannot be remotely debugged, and it cannot meet the use in complex environments.

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