Frequency spectrum cognition method for coexistence of high and low orbit satellites

The invention discloses a spectrum cognition method for coexistence of high and low orbit satellites. The method comprises the steps that firstly, LEO cognitive nodes located in different CSPs collect GEO satellite interference signals and transmit the signals to a ground fusion center FC, and the g...

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Bibliographic Details
Main Authors ZHANG GENGXIN, REN RONGKAI, WANG HAITAO
Format Patent
LanguageChinese
English
Published 25.06.2021
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:The invention discloses a spectrum cognition method for coexistence of high and low orbit satellites. The method comprises the steps that firstly, LEO cognitive nodes located in different CSPs collect GEO satellite interference signals and transmit the signals to a ground fusion center FC, and the ground fusion center comprehensively judges the signals and then generates frequency spectrum situation information of GEO satellites in combination with the REM technology; then the spectrum situation information generated according to the FC is sent to a spectrum regulation and control system so as to formulate or update a spectrum sharing strategy; and finally, the spectrum scheduling system sends a corresponding control command to the LEO node. According to the invention, the concept of CSP is provided, and the negative influence of sparsely distributed LEO-CNs on cooperative spectrum cognition is solved; a double-threshold energy detection algorithm is introduced, a fusion strategy combining soft fusion and har
Bibliography:Application Number: CN202110231125