DocumentCode
1411532
Title
Comparison of Electrooptic Modulation Methods
Author
Hannan, William J. ; Bordogna, Joseph
Author_Institution
RCA Laboratories, David Sarnoff Research Center, Princeton, N.J.
Issue
6
fYear
1968
Firstpage
874
Lastpage
878
Abstract
A comparison is made among normal AM, wide-band analog FM, and PCM as applied to transmission of real-time TV pictures via an electrooptic space communication system. The comparison is based on the requirement to receive a subjectively noise-free TV picture. Based on the results of this comparison, it is concluded that analog-FM subcarrier modulation is the best practical choice for transmission of real-time TV pictures in space via a laser beam. In addition to providing performance equivalent to that of coherent PCM, this type of modulation can be implemented with comparatively simple equipment.
Keywords
Bandwidth; Circuit noise; Detectors; Digital modulation; Electrooptic modulators; Frequency modulation; Narrowband; Receiving antennas; Signal to noise ratio; Wideband;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.1968.5409055
Filename
5409055
Link To Document