Title :
On-board satellite switch controller for multi-beam communication satellite
Author :
Ono, Takashi ; Mori, Masato
Author_Institution :
NTT Radio Commun. Syst. Lab., Tokyo, Japan
Abstract :
A compact and highly reliable onboard satellite switch controller (SSC) is proposed for a multibeam communication satellite, the Engineering Test Satellite VI. In order to reduce the size, weight, and power consumption of the SSC and to increase its reliability, a latchup-free high-density (64-kb) memory, a microprocessor, and two types of CMOS/bulk LSIs (8 K gate each) have been developed. Moreover, to realize immunity from cosmic ray-induced soft-error, a modular redundant with adaptive error correction scheme is adopted. As a result, the developed onboard SSC is free from soft-error, and the SSC´s survival probability is estimated to be as high as 0.99 for a ten-year mission. The weight and power consumption have been reduced to one fourth and one tenth of those of a conventional system, respectively
Keywords :
CMOS integrated circuits; artificial satellites; fault tolerant computing; large scale integration; microcomputer applications; probability; random-access storage; reliability; satellite relay systems; telecommunications computer control; 64 kByte; CMOS RAM; ETS-VI; Engineering Test Satellite VI; communication payload; gate CMOS/bulk gate array LSI; microprocessor; modular redundant adaptive error correction; multibeam communication satellite; onboard satellite switch controller; power consumption; reliability; survival probability; Artificial satellites; Communication switching; Communication system control; Energy consumption; Microprocessors; Power engineering and energy; Reliability engineering; Size control; Switches; Testing;
Conference_Titel :
Communications, 1990. ICC '90, Including Supercomm Technical Sessions. SUPERCOMM/ICC '90. Conference Record., IEEE International Conference on
Conference_Location :
Atlanta, GA
DOI :
10.1109/ICC.1990.117240
