DocumentCode
772052
Title
Normalized Power Spectra for FDM/FM Signals and Noise Power Ratio Calculations
Author
Boyhan, John W.
Author_Institution
ARAMCO, Dhahran, Saudi Arabia
Volume
32
Issue
1
fYear
1984
fDate
1/1/1984 12:00:00 AM
Firstpage
77
Lastpage
81
Abstract
By using normalized power spectra to represent frequency division multiplex/frequency modulation (FDM/FM) signals, the noise-power ratio (NPR) resulting from interference between FM signals can be easily calculated. These non-Gaussian power spectra are shown for CCIR preemphasis, rms frequency modulation ( 
) indexes from 0.1 to 1.2 and for top-to-bottom baseband frequency ratios ( 
) from 2 to 20. Proof is given that signals with the same index, ratio, and preemphasis characteristics will have the same power spectrum. Also given is the value of the index for a given ratio that can be used to represent the FDM/FM signals by a Gaussian power spectrum.
) indexes from 0.1 to 1.2 and for top-to-bottom baseband frequency ratios ( ) from 2 to 20. Proof is given that signals with the same index, ratio, and preemphasis characteristics will have the same power spectrum. Also given is the value of the index for a given ratio that can be used to represent the FDM/FM signals by a Gaussian power spectrum.Keywords
Electromagnetic interference, radiated; FM; Frequency-division multiplexing (FDM); Baseband; Equations; Frequency division multiplexing; Frequency modulation; Gaussian approximation; Gaussian noise; Interference; Phase modulation; Signal analysis; Signal to noise ratio;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1984.1095958
Filename
1095958
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