STUDY OF RANDOM SCAN TV TRANSMISSION

The report is concerned with the study of the modulation-demodulation and synchronization problems arising in random-scan TV signals, which are characterized by the pseudo-random selection of the spacial positions of the TV elements. The transmission channels considered were troposcatter and line-of...

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Bibliographic Details
Main Authors: BELLO,Philip A, Boardman,Charles J, Filippi,Cesar A, Sussman,Steven M
Format: Report
Language:English
Subjects:
CORRELATORS
DEMODULATION
ELECTROMAGNETIC RADIATION
ELECTROMAGNETISM
FREQUENCY MODULATION
MODULATION
S BAND
SCANNING
SYNCHRONIZATION(ELECTRONICS)
TELEVISION RECEIVERS
TELEVISION TRANSMITTERS
VIDEO SIGNALS
WAVE PROPAGATION
X BAND
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Summary:The report is concerned with the study of the modulation-demodulation and synchronization problems arising in random-scan TV signals, which are characterized by the pseudo-random selection of the spacial positions of the TV elements. The transmission channels considered were troposcatter and line-of-sight propagation in the S- and X-Band. Both analog and digital modems were studied. Also, the modulation and synchronization problems of a simulated random scan based on a repetitive linear sweep followed by a point selector are discussed. (Author)