Block division carrier slot setting for satellite SCPC systems

Author

Yashima, Hiroyuki ; Sasase, Iwao ; Mori, Shinsaku

Author_Institution

Dept. of Inf. & Comput. Sci., Saitama Univ., Urawa, Japan

Volume

39

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

21

Lastpage

24

Abstract

A carrier slot setting plan is proposed to reduce intermodulation (IM) effects for satellite single-channel-per-carrier (SCPC) systems. Carrier slots are divided into blocks and slight frequency gaps are set among blocks. This setting introduces frequency offset between the center frequencies of carrier slots and the center frequencies of the IM components. A method of deriving optimum division in order to derive the upper bound of improvement of the C/IM ratio in the worst channel is developed. The results show that the setting plan achieves significant improvement of IM effects at a cost of only slight bandwidth expansion, even in fully loaded SCPC systems

Keywords

interference suppression; intermodulation; satellite relay systems; block division carrier slot setting; frequency offset; intermodulation noise reduction; optimum division; satellite SCPC systems; single-channel-per-carrier systems; Bandwidth; Communications Society; Concrete; Costs; Frequency conversion; Magnetooptic recording; Power engineering computing; Satellite communication; Transponders; Upper bound;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.68272

Filename

68272