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Role of VLSI in SATCOM applications

Posted: 20 Jan 2010     Print Version  Bookmark and Share

Keywords:VLSI  satellite  SATCOM  communications 

K .S. Dasgupta

K .S. Dasgupta emphasized the role of VLSI in making better onboard satellite apps, ground systems and tele-medicine.

K .S. Dasgupta, director of DECU at ISRO, Ahmedabad highlighted the applications of SATCOM in society in his presentation at the VLSI conference, which was part of the session targeted at the theme of the conference: Affordable technologies for the emerging markets.

He focussed on the type of devices (primarily FPGAs) required for onboard applications and also the type of devices required for ground systems like telemedicine and tele-education network for societal applications.

Societal apps
SATCOM has many societal applications like disaster management, tele-medicine, tele-education. Normal VLSI view is to focus on mass production and to make it cost effective but not for space applications. Here one looks for reliability, quick turn around time in proving the concept, low power and remote configurability.

The usage of satellites can be used to reduce the gap between the have and have not's due to its diverse applications. In the modern area it can complement and supplement and co-exist with current technology. He cited various examples of SATCOM applications which have benefited the society.

Tele-education: With Vikram Sarabhai at ISRO's helm in 1975, a Satellite Instructional Television Experiment (SITE), covering 2400 villages over six states, was accomplished with the use of an American satellite, ATS-6. This illustrates it can reach various segments of society.

More recently, the GSAT-3 or EDUSAT based on a high power Ku band transponder with multiple spot beams antennae is designed for educational services. It has a two way interactive method for education.

Distress Management: A distress alert transmitter, a ground GPS device with a satellite link where fishermen can press button located on the device, transmitting a signal with the GPS coordinates to alert the coast guard who can mount a rescue operation.

Tele-medicine: The Sabarmati jail in Ahmedabad has been connected to the Apollo hospital via a satellite-link. This system allows a patient at the jail to be monitored by the doctors at the remote hospital and treatment may be administered.


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