India developing hi-tech software-defined radios

Last Updated: Wednesday, November 17, 2010 - 18:16

Bangalore: The Bharat Electronics Limited
is developing a light-weight, cost-effective software-driven
communication radio that can operate on any frequency band.

The software-defined radio, as this device is called,
can operate on Very High Frequency, Ultra High Frequency, High
Frequency and L-band, which otherwise need different radios.

The radio can also work with any legacy radio.

"It (software-defined radio) will change the way
communication is managed in a battlefield situation", said I V
Sarma, Director (R&D) of the defence electronics company under
the Ministry of Defence.

In these radios, hardware blocks would be replaced by
software ones. So, a software will do the job of a hardware
Circuit Board.

"A software today can generate a waveform which is
equivalent to a modulated signal," Sarma said, adding, "Every
hardware element in the radio is getting replaced by a piece
of software".

"Entire radio can be designed using quite a lot of
software", he said, adding, there will only be hardware to run
the software and to amplify power.

BEL, which has supplied close to 2 lakh radios
(earlier versions) to the Defence Forces till date, expects to
demonstrate the Army-version of the software-defined radio in
March and come out with the ones for Air Force and Navy within
a year from then.

PTI



First Published: Wednesday, November 17, 2010 - 18:16

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