Title :
Identification of CDMA signal and GSM signal using the wavelet transform
Author :
Liu, Haiqin ; Ho, K.C.
Author_Institution :
Dept. of Electr. Eng., Missouri Univ., Columbia, MO, USA
Abstract :
Modulation identification has found wide applications in modern communication systems. This paper proposes a method to identify the OQPSK modulation type of IS-95 CDMA signal and the GMSK modulation type of GSM signal. The two signals have different transient properties because of their different modulation schemes. The idea of the proposed method is to use wavelet transform to extract the transient behaviors of the two signals, and then perform a template matching in the wavelet transform domain for identification. Simulation results showed that the percentage of correct identification was 98% at -3 dB Eb/N 0 with an observation period of 0.5 ms
Keywords :
cellular radio; code division multiple access; identification; minimum shift keying; quadrature phase shift keying; wavelet transforms; CDMA signal; GMSK; GSM signal; IS-95; OQPSK; communication system; modulation identification; template matching; transient properties; wavelet transform; Baseband; Filters; GSM; Multiaccess communication; Optical signal processing; Phase shift keying; Pulse shaping methods; Signal processing; Wavelet domain; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location :
Las Cruces, NM
Print_ISBN :
0-7803-5491-5
DOI :
10.1109/MWSCAS.1999.867728
