COMPACT LSI- AND MIC-IMPLEMENTED BURST MODEM FOR LOW EB/NO OPERATION.

Masahiro Umehira, Shuji Kubota, Kiyoshi Enomoto, Shuzo Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The authors propose a highly reliable and compact low E//b/N//0 burst modem for TDMA satellite communication systems. To realize stable operation in low E//b/N//0 environments and reduce adjustment complexity or burst modems, two techniques are proposed: (1) a carrier recovery circuit using a reverse modulation scheme with precise digital Costas APC (automatic phase control) and (2) a phase-compensated carrier tank. By extracting and classifying basic functions of burst modems, eleven kinds of widely applicable modem ICs (three digital LSIs, four high-speed silicon MICs and four thick-film HICs) which are applicable to various clock rate and IF frequency burst/continuous modems have been developed. The advent of these modem ICs has made it possible to reduce the hardware size of burst modems to one half of a conventional one, consequently increase reliability significantly and contributes to reduce maintenance and adjustment works. The prototype LSI- and MIC-implemented burst modem shows superb performance even if in low E//b/N//0 environments and satisfactory performance.

Original languageEnglish
Title of host publicationUnknown Host Publication Title
Place of PublicationTokyo, Jpn
PublisherOhmsha Ltd
Pages268-273
Number of pages6
ISBN (Print)4274031888
Publication statusPublished - 1987
Externally publishedYes

Fingerprint

Modems
Satellite communication systems
Phase control
Time division multiple access
Thick films
Clocks
Modulation
Hardware
Recovery
Silicon
Networks (circuits)

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Umehira, M., Kubota, S., Enomoto, K., & Kato, S. (1987). COMPACT LSI- AND MIC-IMPLEMENTED BURST MODEM FOR LOW EB/NO OPERATION. In Unknown Host Publication Title (pp. 268-273). Tokyo, Jpn: Ohmsha Ltd.

COMPACT LSI- AND MIC-IMPLEMENTED BURST MODEM FOR LOW EB/NO OPERATION. / Umehira, Masahiro; Kubota, Shuji; Enomoto, Kiyoshi; Kato, Shuzo.

Unknown Host Publication Title. Tokyo, Jpn : Ohmsha Ltd, 1987. p. 268-273.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Umehira, M, Kubota, S, Enomoto, K & Kato, S 1987, COMPACT LSI- AND MIC-IMPLEMENTED BURST MODEM FOR LOW EB/NO OPERATION. in Unknown Host Publication Title. Ohmsha Ltd, Tokyo, Jpn, pp. 268-273.
Umehira M, Kubota S, Enomoto K, Kato S. COMPACT LSI- AND MIC-IMPLEMENTED BURST MODEM FOR LOW EB/NO OPERATION. In Unknown Host Publication Title. Tokyo, Jpn: Ohmsha Ltd. 1987. p. 268-273
Umehira, Masahiro ; Kubota, Shuji ; Enomoto, Kiyoshi ; Kato, Shuzo. / COMPACT LSI- AND MIC-IMPLEMENTED BURST MODEM FOR LOW EB/NO OPERATION. Unknown Host Publication Title. Tokyo, Jpn : Ohmsha Ltd, 1987. pp. 268-273
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