Title :
False-Lock Detection in Costas Demodulators
Author :
Olson, Michael L.
Author_Institution :
National Center for Atmospheric Research Boulder, Colo. 80302
fDate :
3/1/1975 12:00:00 AM
Abstract :
False lock occurs in Costas demodulators with sweep frequency acquisition because sideband energy is detected in the data channel. It is shown that utilizing the data and error channels to make the lock decision will prevent false lock from occurring.
Keywords :
Bandwidth; Circuits; Clocks; Demodulation; Envelope detectors; Low pass filters; Phase detection; Phase frequency detector; Signal analysis; Signal processing;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1975.308055
