Application of Adaptive Filter RLS Algorithm in Medium Wave Broadcast Interference Suppression
Medium wave broadcasting is an important information dissemination medium,which is mostly used to disseminate news,information,culture and entertainment programs,and may be used to convey key information in an emergency,such as weather warning and emergency notice.If there is medium wave broadcast interference,it will seriously affect its normal operation and information transmission and interfere with the normal reception of listeners.Using interference suppression means can improve the broadcast quality and ensure that listeners can receive the broadcast content normally.Firstly,this paper analyzes the interference status of medium-wave broadcasting,models narrowband interference,broadband interference,multipath interference,co-frequency interference,noise interference and harmonic interference,and proposes an adaptive filter algorithm to suppress the interference of medium-wave broadcasting signals.From the simulation results,the adaptive filter algorithm can effectively improve the signal-to-noise ratio,reduce the signal distortion,and reduce the influence of all kinds of interference,which has certain application value.
medium wave broadcast interference signalfrequency domain characteristicsspectrum analysis
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