Synchronization self-adaptation short-wave communication frequency-selecting method based on ionized layer data

Abstract

The invention discloses a synchronization self-adaptation short-wave communication frequency-selecting method based on ionized layer data. The synchronization self-adaptation short-wave communication frequency-selecting method based on the ionized layer data comprises the step one that the maximum usable frequency of a channel is obtained by utilizing the ionized layer data according to short-wave communication link timing, wherein the ionized layer data comprise real-time observational data, historical data and the like; the step two that the range of usable frequency is determined according to the maximum usable frequency and by combining communication efficiency and/or duration of passable frequency; the step three that the range of the usable frequency is sent to a synchronization self-adaptation short-wave communication system; the step four that the synchronization self-adaptation short-wave communication system obtains the optimum usable frequency by scanning the range of usable frequency in a synchronization self-adaptation frequency-selecting mode, and then communication can be carried out. The synchronization self-adaptation short-wave communication frequency-selecting method based on the ionized layer data can overcome the defect in the prior art that the efficiency is low or it is difficult to obtain the optimum usable frequency due to the fact that channel information needs to be set in advance, and can efficiently select the optimum communication frequency. Thus, the synchronization self-adaptation short-wave communication frequency-selecting method based on the ionized layer data has an obvious effect on improvement of comprehension effectiveness of short-wave data communication.

Description

Background technique [0001] Short-wave communication uses the ionosphere to reflect high-frequency radio waves to achieve information transmission. It is a type of radio communication and one of the main means of long-distance communication. Short wave communication has very good resistance to destruction. When natural disasters or wars occur, other communication networks may be damaged, and short-wave communication can still achieve communication because it is not restricted by network hubs and active relays. In areas where ultra-short wave coverage is not available, such as mountainous areas, Gobi, and oceans, it mainly relies on short-wave communication. In addition, short-wave communication also has the advantages of high flexibility, simple equipment and low operating costs. Therefore, under the condition that new communication systems are constantly emerging, the traditional communication method of short wave is still widely valued by the whole world. The short-wave c...

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Problems solved by technology

If there are enough preset channels, the channel frequency range is large enough and the channel frequency density is high enough to ensure that the best available frequency is obtained during channel detection, but the channel detection process takes a long time and the efficiency is low; if the number of preset channels is small, or The frequency coverage of the channel is narrow, or the fre

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