DocumentCode
1210805
Title
Distortion of SSB Transmission Due to AM-PM Conversion
Author
Medhurst, R.G. ; Roberts, J.H. ; Walsh, W.R.
Author_Institution
The General Electric Co., Ltd., Wembley, Middlesex, England
Volume
12
Issue
2
fYear
1964
fDate
6/1/1964 12:00:00 AM
Firstpage
166
Lastpage
176
Abstract
It appears not to have been widely recognized that intermodulation distortion of a SSB-AM signal will be generated by AM-PM conversion effects present in amplifiers (such as traveling wave tubes), as well as by output-input nonlinearity. When the SSB-AM signal is carrying multichannel telephony this can be an important source of distortion. In the present paper, a formula is developed relating intermodulation distortion to AM-PM conversion level. The theory is also applied to two-tone testing, in order to allow comparison with experiment. The experimental results are found to be in satisfactory agreement with theoretical predictions.
Keywords
Amplitude modulation; Crosstalk; Frequency; Intermodulation distortion; Nonlinear distortion; Power amplifiers; Power generation; Signal generators; Telephony; Testing;
fLanguage
English
Journal_Title
Communications Systems, IEEE Transactions on
Publisher
ieee
ISSN
0096-1965
Type
jour
DOI
10.1109/TCOM.1964.1088916
Filename
1088916
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