Research on the Application of Channel Noise Technology in Frequency Modulation Broadcasting Transmission
In this paper,the channel noise problem of frequency modulation broadcast transmission is studied,and a set of frequency modulation broadcast transmission system based on channel noise technology is constructed by establishing a comprehensive noise model,designing an adaptive pre-accentuation filter and optimizing the code modulation scheme. Simulation results show that the system can effectively improve the signal-to-noise ratio,reduce the modulation error rate and improve the spectrum efficiency under different noise environments.
frequency modulation broadcastingchannel noiseadaptive pre-emphasis
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