DocumentCode
1210920
Title
Pseudorandom scanning
Author
Huang, Tingwen
Author_Institution
Dept. of Electr. Eng., Research Lab. of Electronics, MIT, Cambirdge, MA
Volume
12
Issue
3
fYear
1964
fDate
9/1/1964 12:00:00 AM
Firstpage
105
Lastpage
107
Abstract
Pseudorandom scanning has been ingenuously used by S. Deutsch ["Narrow-band TV uses pseudorandom scan," Electronics, vol. 35, pp. 49-51, April 27 1962] to reduce television frame rate and hence bandwidth. In this communication we shall consider the use of pseudorandom scanning in transmitting still (rather than motion) pictures. We assume thathe picture is transmitted through a onedimensional channel. Pseudorandom scanning is one way of obtaining a onedimensional function from the twodimensional picture. Another way, which is often used in practice at the present, is sequential scanning, in which the picture is scanned along horizontal lines sequentially from top to bottom. We shall compare the effects of these two scanning methods on the received pictures for certain channels.
Keywords
Arm; Electrostatic precipitators; Filters; Interference cancellation; Interference channels; Noise cancellation; Noise level; Noise reduction;
fLanguage
English
Journal_Title
Communication Technology, IEEE Transactions on
Publisher
ieee
ISSN
0018-9332
Type
jour
DOI
10.1109/TCOM.1964.1088927
Filename
1088927
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