The invention discloses a medium-short wave
signal transmission interference suppression method and
system based on
wireless radio and television, and the method comprises the following steps: S1, collecting and preprocessing medium-short
wave frequency band data, and constructing a
frequency spectrum state
data set; s2, constructing a spectrum evolution
cognitive map model based on the spectrum state
data set; s3, performing clustering analysis by using the spectrum evolution
cognitive map model to generate a broadcast interference popularity map; s4, inputting the spectrum evolution
cognitive map model and the broadcast interference
heat map into an improved
badger interference avoidance
algorithm, and outputting a frequency hopping avoidance path; s5, the broadcast transmitting
system executes frequency hopping scheduling control according to the frequency hopping avoiding path, and it is guaranteed that frequency point switching is completed under the condition that
broadcast service is not interrupted; and S6, the broadcast receiving terminal collects
signal quality parameters and transmits the
signal quality parameters back to the central
system, and the node state of the spectrum evolution cognitive
graph model is updated in real time. According to the method, active avoidance of medium-short wave broadcast interference and stable frequency hopping scheduling are realized by combining
frequency spectrum cognitive modeling and a swarm intelligent optimization
algorithm.