Title :
Phase accuracy and stability of quadrature IF demodulators
Author :
Griffiths, H.D. ; Long, N.R.W. ; Schoenenberger, J.G.
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
Baseband signal processing involves the provision of quadrature channels if phase information is of importance. A technique of producing extremely well matched quadrature phase detectors over a 40 dB dynamic range is described, together with a scheme to measure the resulting phase errors to an accuracy of less than 1 min.
Keywords :
demodulators; frequency stability; 40 dB dynamic range; phase errors; quadrature IF demodulators; quadrature channels; quadrature phase detectors;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850131
