Title :
A robust MSK demodulator through DSP
Author :
Hodgart, M. Stephen ; Schoonees, Johann A.
Author_Institution :
Centre for Satellite Eng. Res., Surrey Univ., Guildford, UK
fDate :
9/11/1992 12:00:00 AM
Abstract :
A minimum shift keying or fast frequency shift keying coherent demodulating algorithm is discussed. Both carrier synchronisation and optimal symbol correlation are done within two decision switched Costas loops, each operating at one of the reference signal frequencies. Simulation shows the demodulator to be robust against phase distortion and frequency drift in the received signal. The receiver is relatively simple and well suited to a DSP or digital implementation
Keywords :
correlation methods; demodulators; digital signal processing chips; minimum shift keying; modems; synchronisation; DSP; carrier synchronisation; decision switched Costas loops; fast frequency shift keying coherent demodulating algorithm; frequency drift; minimum shift keying; optimal symbol correlation; phase distortion; robust MSK demodulator; Bit rate; Demodulation; Digital signal processing; Frequency shift keying; Frequency synchronization; Modems; Power engineering and energy; Robustness; Satellites; Transmitters;
Conference_Titel :
Communications and Signal Processing, 1992. COMSIG '92., Proceedings of the 1992 South African Symposium on
Conference_Location :
Cape Town
Print_ISBN :
0-7803-0807-7
DOI :
10.1109/COMSIG.1992.274282
