Title :
Design of demodulators using time-varying adaptive digital filters
Author :
Lindquist, Claude S. ; Corral, Celestino A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Miami Univ., FL, USA
Abstract :
A discussion is presented of the design of time-varying adaptive digital filters used for amplitude-shift keying (ASK), frequency-shift keying (FSK), and phase-shift keying (PSK) demodulation in communication systems. It is shown that these time-varying time domain algorithms require less computations and hence are more efficient than frequency domain algorithms. An efficient inversion technique is exploited in these time domain formulations. Simulations are presented and discussed
Keywords :
adaptive filters; amplitude modulation; demodulators; digital filters; frequency shift keying; phase shift keying; amplitude-shift keying; demodulators; frequency-shift keying; inversion technique; phase-shift keying; time domain algorithms; time-varying adaptive digital filters; Adaptive filters; Amplitude shift keying; Demodulation; Digital filters; Fourier transforms; Frequency domain analysis; Frequency shift keying; Matrix converters; Phase shift keying; Time varying systems;
Conference_Titel :
Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-0081-5
DOI :
10.1109/MWSCAS.1990.140656
