Abstract: An empirical resolution for spectrum sensing based on features of TV signals of PAL, CTTB and DVB-T standards was proposed in consideration of the TV spectrum that might be open in China in future. The resolution proposed the pseudo noise code (PN) correlation detection algorithm for the CTTB TV signals; and integrated the spectrum sensing algorithms of pilot detection and cycle prefix (CP) correlation detection. Moreover, TV signals of the related spectrum in Shanghai were successfully detected based on the proposed resolution operated on our hardware detecting platform based on Labview, and the occupation and some statistic characteristics were provided.

Key words: cognitive radio, spectrum sensing, CTTB, DVB-T