DocumentCode
906985
Title
Some bandwidth properties of simultaneous amplitude and angle modulation
Author
Kahn, R.E. ; Thomas, J.B.
Volume
11
Issue
4
fYear
1965
fDate
10/1/1965 12:00:00 AM
Firstpage
516
Lastpage
520
Abstract
This paper treats some bandwidth properties of modulated signals of the form ![q(t) \\cos [\\omega _{c}t + \\varphi (t)]](/images/tex/6538.gif)
where both 
and 
are modulating time functions. For such simultaneous amplitude and angle modulation (AAM), relationships are given connecting the bandwidth of the modulated signal with the properties of the modulating time functions. Some useful bounds on the bandwidth are found and a relationship is derived between the amplitude and the angle modulating functions which results in a minimum bandwidth. Several examples of such minimum bandwidth signals are given.
where both and are modulating time functions. For such simultaneous amplitude and angle modulation (AAM), relationships are given connecting the bandwidth of the modulated signal with the properties of the modulating time functions. Some useful bounds on the bandwidth are found and a relationship is derived between the amplitude and the angle modulating functions which results in a minimum bandwidth. Several examples of such minimum bandwidth signals are given.Keywords
AM signals; PM signals; Active appearance model; Amplitude modulation; Bandwidth; Fourier transforms; Frequency measurement; Helium; Mirrors; Pulse measurements;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.1965.1053824
Filename
1053824
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