Short-wave frequency searching device and control method thereof
A technology of frequency search and control method, applied in the field of communication, can solve the problems of difficult selection of communication frequency in the short-wave frequency band, reduction of available frequency resources, lack of monitoring and control means, etc.
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[0058] figure 1 It is a schematic structural diagram of a shortwave frequency search device according to an embodiment of the present invention. As shown in the figure, the shortwave frequency search device according to the present invention includes the following main components:
[0059] a) Broadband receiving unit, which includes antenna isolator and shortwave broadband receiving module. The antenna isolator is used to realize the switching from the antenna to the radio station and the antenna to the shortwave broadband receiving module, and to realize the isolation between the shortwave broadband receiving module and the shortwave radio transmitting signal when the shortwave radio transmits signals;
[0060] b) Digital down conversion module, used to collect the intermediate frequency signal provided by the broadband receiving unit;
[0061] c) Digital signal processing module, used to complete the available frequency search and frequency optimization. By sensing the spectrum i...
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