A method for predicting the duration of ionospheric scintillation events in the uhf band of a single station within half an hour in the future
A technology of event occurrence and prediction method, applied in the field of satellite communication and radar, can solve the problems of academic papers or patents on ionospheric scintillation events in the UHF band that have not been discovered, and achieve the effect of important application value
Active Publication Date: 2021-12-03
中国电波传播研究所
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[0004] In the prior art, no academic papers or patents related to the duration of ionospheric scintillation events in the UHF band have been found
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Embodiment 1
[0033] Example 1, as figure 1 As shown, this embodiment discloses a method for predicting the duration of a single-station UHF band ionospheric scintillation event within half an hour in the future, including the following steps:
[0034] Step 1: Deploy a UHF band ionospheric scintillation monitor at a single station in a low latitude area between 9 degrees and 12 degrees geomagnetic latitude to continuously monitor the ionospheric scintillation index S4 data of the UHF band signal of the static orbit communication satellite; The UHF band ionospheric scintillation monitor was deployed at the Haikou station in the low latitude area (geographical coordinates 20.0°N, 110.3°E; geomagnetic latitude 10.1°N) to observe the ionospheric scintillation index S4 data of the UHF band signal of the geostationary communication satellite.
[0035] Step 2: Detect the presence or absence of ionospheric scintillation events in the UHF band through the automatic identification algorithm of ionosp...
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The invention discloses a method for predicting the occurrence time of ionospheric scintillation events in the UHF frequency band of a single station within half an hour in the future, comprising the following steps: Step 1, continuous monitoring of a single station in a low-latitude area between 9 degrees and 12 degrees of geomagnetic latitude Ionospheric Scintillation Index of UHF Band Signals from Geostationary Orbit Communication Satellites S 4 data; step 2, detect the presence or absence of UHF ionospheric scintillation events through the ionospheric scintillation event automatic identification algorithm; Duration of scintillation events: Step 4, using the prediction model for the duration of ionospheric scintillation events in the UHF band of a single station in the next half hour, to obtain the forecast data of the duration of ionospheric scintillation events in the UHF band of a single station in the next half hour. The prediction method disclosed by the invention can effectively solve the problem of how long an ionospheric scintillation event in the UHF frequency band will continue to occur in the future.
Description
technical field [0001] The invention belongs to the field of satellite communication and radar, and particularly relates to a method for predicting the occurrence duration of a single-station UHF frequency band ionospheric scintillation event within half an hour in the future. Background technique [0002] On the background of the normal electron density of the ionosphere, there are ion bodies with different densities and sizes, which are called ionospheric inhomogeneities. When the satellite signal propagates in the ionospheric inhomogeneity, it will cause changes in the propagation path and propagation time, resulting in rapid fluctuations in the amplitude, phase and angle of arrival of the signal, resulting in signal fading, frequency shift, etc., which is called the ionosphere. flashing. The ionospheric scintillation effect will directly affect the performance indicators such as the bit error rate, communication quality, positioning accuracy, and operating distance of e...
Claims
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IPC IPC(8): G01W1/10G08B21/10G08B21/18
CPCG01W1/10G08B21/10G08B21/18Y02A90/10
Inventor 张红波王飞飞刘玉梅盛冬生
Owner 中国电波传播研究所