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An ITD based automatic digital modulation recognition algorithm for broadband mobile multimedia communication system

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6 Author(s)
Xue Li ; Nat. Lab. of Inf. Control, CECT, Jiaxing, China ; Bin Tian ; Jinkun An ; Xianbin Wang
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Automatic modulation recognition is extremely important for the receiver design in the broadband multimedia communication system. Based on the intrinsic time-scale decomposition algorithm for feature extraction on which the instantaneous amplitude, phase and frequency is precisely defined, this paper proposed a feature selection algorithm to find the features with high distinguishing capacity and a digital modulation recognition algorithm. Simulation results show that this algorithm is of low complexity and the average recognition accuracy is higher than 94% using only three feature parameters when SNR is above 5dB.

Published in:

Broadband Multimedia Systems and Broadcasting (BMSB), 2010 IEEE International Symposium on

Date of Conference:

24-26 March 2010