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This
project seeks to develop an adaptive communication system
using software defined radio. SDR has enabled radio processing
to reach a new level as it has allowed for the switch from
analog to digital. SDR allows for ease of design, multimode
operation, flexibility to incorporate additional functions,
use of advanced signal processing techniques as well as many
other functions.
The group
was able to write software which enables users to define operating
parameters of a transceiver and adjust to random signals.
For example, if a certain frequency is too noisy or congested,
the transceiver recognizes this and switches to the appropriate
frequency. Furthermore the software-defined radio adjusts
the data rate according to the noise level in the channel.
The group implemented this system using an Amplitude Shift
Keying modulation scheme to transmit data. The software for
this project was written using Visual Basic and was implemented
onto the Flex Radio (SDR-1000).
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