Digital data over video channels: Techniques for Spacelab

Author

Smith, Dean Lance ; Hanby, Walter D.

Author_Institution

Dept. of Electr. Eng., Memphis State Univ., TN, USA

Volume

8

Issue

4

fYear

1993

fDate

4/1/1993 12:00:00 AM

Firstpage

16

Lastpage

24

Abstract

Various techniques for transmitting digital data over a composite video channel are examined, with a view to transmitting data from experiments on the Space Shuttle orbiter. PSK (phase-shift keying), MPSK (m-ary PSK), or PAM (pulse-amplitude modulation), which can be transmitted on visible lines of a frame, unassigned lines of the VBI (vertical blanking interval), or during the HBI (horizontal blanking interval), are all found to be attractive under the proper conditions. However, PAM on visible lines or during the VBI should be relatively easy to implement, provide adequate average data rates, and give acceptable BERs (bit error rates).<>

Keywords

digital communication systems; phase shift keying; pulse amplitude modulation; space communication links; telecommunication channels; video signals; HBI; MPSK; PSK; Space Shuttle orbiter; Spacelab; VBI; bit error rates; broadcasting; composite video channel; digital data; horizontal blanking interval; noise; phase-shift keying; pulse-amplitude modulation; vertical blanking interval; visible lines; Amplitude modulation; Blanking; Channel capacity; Digital video broadcasting; Electron beams; Phase shift keying; Pulse modulation; Space shuttles; TV broadcasting; Videoconference;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems Magazine, IEEE

Publisher

ieee

ISSN

0885-8985

Type

jour

DOI

10.1109/62.210637

Filename

210637