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
Link To Document :
