Research on Modulation Recognition Technology for Measuring Communication Signals
The modulation recognition of measuring communication signals is conducted to study the recognition method for spe-cific signals with multiple signal interactions and noise environment,and understand and analyze signal information in detail;By the processes of modulation principle,scheme design and verification,it gradually reveals the principles,current development status of signal modulation recognition technology,and advanced recognition technologies,an own design recognition scheme is used to identify and classify different analog modulation signals,it has the features of high reliability,convenience,and operability.The basic modu-lation signals are simulated to determine the discrimination threshold on MATLAB-based software platform,and successfully identify the signals of AM,DSB,SSB and FM.Experimental results show that the correct modulation recognition rate is achieved by 90％,with the SNR of over12 dB,it proves the feasibility of the designed scheme.
modulation recognitionjudgement thresholdMATLABsimulationcorrect rate of recognition
万方数据
维普
