Title :
An Efficient Recognition Algorithm Between Analog and Digital Signals at Low SNR
Author :
Li, Chisheng ; Xu, Shuliang ; Zha, Guofeng
Author_Institution :
Dept. of Electron. & Inf. Eng., Nanchang Univ., Nanchang, China
Abstract :
Signal recognition plays more and more important roles in future communication. In this paper, we proposed a novel recognition algorithm between analog signals and digital signals at low SNR, combining non-linear transform and wavelet transform. The algorithm requires no priori condition, and has low calculation cost. Simulation results shows a higher correct recognition probability, 100 % at SNR of higher than 6 dB, 98% at 3dB and 90% at -4 dB.
Keywords :
signal processing; wavelet transforms; Low SNR; analog signals; digital signals; efficient recognition algorithm; nonlinear transform; signal recognition; wavelet transform; Amplitude modulation; Analog computers; Automation; Character recognition; Digital modulation; Frequency; Phase modulation; Pulse modulation; Signal processing; Wavelet transforms; modulation recognition; non-linear transform; symbol rate; wavelet transform;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2010 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-7279-6
Electronic_ISBN :
978-1-4244-7280-2
DOI :
10.1109/ICICTA.2010.54
