Title :
Optimum receiver for MSK signalling in the presence of EMI
Author :
Rao, Ramesh ; Sarma, R.S.
Author_Institution :
Dept. of Electron. & Commun. Eng., Osmania Univ., Hyderabad, India
Abstract :
We present a two stage receiver scheme to combat the deleterious effects due to EMI. In the first stage, we employ a continuous time filter matched to the data waveform, and sample the output of the matched filter to obtain a discrete time equivalent of the transmitted signals and EMI. In the second stage, a linear filter with adjustable tap weights and a variable number of taps is employed to reduce the effect of EMI. It is assumed that the EMI could be due to arbitrary waveforms extending over variable time intervals
Keywords :
continuous time filters; electromagnetic interference; filtering theory; interference suppression; matched filters; minimum shift keying; receivers; telecommunication signalling; EMI reduction; MSK signalling; adjustable tap weights; continuous time filter; data waveform; discrete time transmitted signals; linear filter; matched filter; optimum receiver; two stage receiver; variable time intervals; Demodulation; Electromagnetic compatibility and interference; Electromagnetic interference; Frequency; Gaussian noise; Impedance matching; Matched filters; Microelectronics; Telephony; Working environment noise;
Conference_Titel :
Electromagnetic Interference and Compatibility '97. Proceedings of the International Conference on
Conference_Location :
Hyderabad
Print_ISBN :
81-900652-0-3
DOI :
10.1109/ICEMIC.1997.669755
