Title :
Demodulation of BFSK signals by adaptive digital notch filtering
Author :
Kadambari, Kaluri ; Rangarao, Kaluri V. ; Mallik, Ranjan K.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma State Univ., Stillwater, OK, USA
Abstract :
We analyze a demodulation technique in which a sampled version of a BFSK signal is passed through an adaptive digital notch filter that estimates and tracks the instantaneous frequency of the incoming signal. By smoothing of the estimated instantaneous frequency sequence followed by a hard decision, we obtain the demodulated signal
Keywords :
adaptive filters; demodulation; digital filters; frequency estimation; frequency shift keying; notch filters; sequential estimation; signal sampling; smoothing methods; BFSK signals; adaptive digital notch filtering; demodulated signal; demodulation; estimated instantaneous frequency sequence; frequency estimation; hard decision; instantaneous frequency tracking; signal sampling; smoothing; Adaptive filters; Band pass filters; Demodulation; Digital filters; Filtering; Frequency conversion; Frequency estimation; Parameter estimation; Signal analysis; Signal processing;
Conference_Titel :
Personal Wireless Communications, 2000 IEEE International Conference on
Conference_Location :
Hyderabad
Print_ISBN :
0-7803-5893-7
DOI :
10.1109/ICPWC.2000.905806
