Title :
A multi-oscillator approach to CPFSK signal creation
Author :
Cuthbert, J. ; Crawford, B. ; Braun, R.M.
Author_Institution :
Dept. of Electr. Eng., Cape Town Univ., Rondebosch, South Africa
Abstract :
The development of a MSK modulator/demodulator by Massey (1980) and the Hodgart and Schoones (see ibid p.211-216, 1992) implementation has prompted the development of a multi-oscillator multi-h modulator/demodulator. The approach taken has been an investigation and extension of basic CPFSK multi-oscillator modulator/demodulator design using digital logic. In this paper the multi-oscillator MSK modulator as developed by Massey is first re-examined before introducing the scheme developed by Crawford (see Master´s thesis, Dept. Elec. Eng, University of Cape Town, Rondebosch, South Africa, June, 1993). Thereafter elements of the related digital logic demodulator design are discussed
Keywords :
continuous phase modulation; frequency shift keying; integrated circuit design; integrated logic circuits; logic design; minimum shift keying; modems; oscillators; phase shift keying; signal synthesis; MSK modulator/demodulator; digital logic demodulator design; multi-h modulator/demodulator; multi-oscillator MSK modulator; multi-oscillator modulator/demodulator design; signal creation; Africa; Cities and towns; Continuous phase modulation; Demodulation; Frequency shift keying; Logic design; Nonlinear distortion; Switches; Transducers; Transmitters;
Conference_Titel :
Communications and Signal Processing, 1994. COMSIG-94., Proceedings of the 1994 IEEE South African Symposium on
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-1998-2
DOI :
10.1109/COMSIG.1994.512430
