Demodulation of narrow-band analogue speech signals using a 1st-order costas loop
作者:
A.P.Lax,
L.F.Turner,
期刊:
IEE Journal on Electronic Circuits and Systems
(IET Available online 1977)
卷期:
Volume 1,
issue 4
页码: 149-154
年代: 1977
DOI:10.1049/ij-ecs.1977.0021
出版商: IEE
数据来源: IET
摘要:
The use of a Costas-type phase-locked loop in the demodulation of narrow-band carrier suppressed analogue speech modulation is considered and new results are obtained which define the limits of usefulness of the loop. Techniques are suggested which overcome these limitations and allow the loop to be used to coherently demodulate the suppressed carrier modulation
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