Title :
Variable-delay, sine/cosine noncoherent detector
Author :
Rafferty, W. ; Saulnier, Gary J.
Author_Institution :
General Electric Company, Corporate Research & Development, Schenectady, USA
Abstract :
The letter describes an all-digital, noncoherent demodulator suitable for the detection of CPFSK and PSK signalling schemes. A single A/D convertor demodulates the input signal and generates baseband in-phase (I) and quadrature (Q) signals. The I and Q signals are then processed with sine and cosine detectors to produce AFC information and the regenerated transmit data.
Keywords :
demodulation; demodulators; digital circuits; mobile radio systems; phase shift keying; AFC information; CPFSK; PSK; in-phase signals; land mobile radio communication links; noncoherent demodulator; quadrature signals; regenerated transmit data; sine/cosine noncoherent detector; single A/D convertor demodulates; variable delay detector circuit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850413
