Utilization of Single Spacecraft Transponder for Two Video Channels

Autor:	S. C. Gupta, N. Sengupta, R. C. Garg, N. Pant
Rok vydání:	1978
Předmět:	Space segment Spacecraft Computer science business.industry Amplifier Computer Science Applications Theoretical Computer Science Communications satellite Electronic engineering Ground segment Electrical and Electronic Engineering business Composite video Transponder Intermodulation
Zdroj:	IETE Journal of Research. 24:70-74
ISSN:	0974-780X 0377-2063
DOI:	10.1080/03772063.1978.11451572
Popis:	Multicarrier FM signal amplified by non-linear amplifiers, generate intermodulation products resulting in cross-talk, in each channel. Typical examples of such amplifiers are saturated TWT amplifiers, constituting the vital communication equipment, both in the spacecraft transponder and the ground segment. With the international satellite services getting changed from a power-limited mode to bandwidth-limited mode, an optimum use of space segment calls for utilization of single 40-MHz spacecraft transponder for more than one video channel transmission.This paper describes the study made to examine the practical feasibility of utilization of single 40-MHz spacecraft transponder for transmission of two video channels using ATS-6 CXC (6 GHz/4 GHz) transponder.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cfb061d4bb933c8297c2acf377192bb7 https://doi.org/10.1080/03772063.1978.11451572 Zobrazit plný text záznamu