A channelization method, device and computer storage medium
A channelization and channel group technology, applied in transmission systems, electrical components, etc., can solve problems such as the inability to realize filter design, shorten the short-wave full-band scanning time, and reduce the amount of calculation.
Active Publication Date: 2020-04-07
XIDIAN UNIV
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[0003] In view of this, the embodiment of the present invention expects to provide a channelization method, device, and computer storage medium; not only can reduce the amount of calculation, but also overcome the filter design caused by direct channelization of shortwave full-band polyphase filtering in conventional technologies The problem that cannot be realized, and shorten the scanning time of the short wave full frequency band, and improve the speed of short wave frequency selective link building
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0026] see figure 1 , which shows a channelization method provided by an embodiment of the present invention, the method can be applied to a receiving end in a shortwave wireless communication system, and the method can include:
[0027] S101: After performing full-band sampling for the shortwave frequency band, divide the sampling data into at least one channel group based on the set shortwave full-band division strategy;
[0028] S102: Based on the center frequency corresponding to each channel group, spectrum shift is performed on the sampling data corresponding to each channel group to obtain the shifted data;
[0029] S103: Use the set multi-stage cascaded decimation filter to perform decimation filtering on the moved data of each channel group to reduce the sampling fre...
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The embodiment of the invention discloses a channelization method and device and a computer storage medium. The method can comprise the following steps: after full-band sampling is carried out on a short-wave frequency band, dividing sampling data into at least one channel group based on a set short-wave full-band division strategy; based on the center frequency corresponding to each channel group, performing spectrum shift on the sampling data corresponding to each channel group to obtain shifted data; extracting and filtering the shifted data of each channel group by using a set multi-stagecascaded extraction filter to reduce the sampling frequency and obtain the extracted and filtered data corresponding to each channel group; performing multi-phase filtering on the extracted filteringdata corresponding to each channel group through a set multi-phase filtering strategy, and outputting channelized output data corresponding to each channel group in parallel for each channel group; and selecting and outputting the channelized output data corresponding to each channel group according to a set selection strategy to obtain effective channelized output data corresponding to each channel group.
Description
technical field [0001] The present invention relates to wireless communication technology, in particular to a channelization method, device and computer storage medium. Background technique [0002] In the field of wireless communication technology, signal down-conversion technology is an indispensable technology in the process of converting received signals from radio frequency to baseband. The down-conversion processing of the signal can be down-converted for a single signal, or it can be down-converted for multiple signals; for the above two down-conversion processing technologies, the down-conversion process for a single signal is relatively simple ; However, the process of down-conversion processing for multi-channel signals is relatively complicated. Especially for the current short-wave fast frequency selection link building system, it is necessary to know in real time whether there are available frequencies in the short-wave full-frequency band, so real-time monitor...
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IPC IPC(8): H04B1/00
Inventor 马卓张龙杜栓义王路玲杨华卿
Owner XIDIAN UNIV