Abstract:
We, in our project, has developed and implemented a new algorithm for
modulation identification in ideal channel conditions. This algorithm may be
classified in the statistical method category. It has been totally our thinking and
work that has led us to develop such an algorithm that is based truly on the
modulating parameters. Hence, it could be said that any modulation technique
can be identified as long as the modulating parameters can be extracted from the
received signal. Our algorithm ha been termed as ’Histogram-Count Modulation
Identification’ (HCMI) method. In the algorithm, we have derived the modulating
parameters as the identification parameters. First we plot the histograms of the
respective modulating parameters, which give us the number of these
parameters. Basing upon which, we identify the modulation technique.
The implementation of the project has been divided into three stages.
These stages are mentioned as follows: -
1. Implementation of the Digital Modulators.
2. Implementation of Digital Modulation Identifier.
3. Implementation of Digital Demodulators.
Our project is Matlab based. Basically the algorithm has been simulated in
Matlab. The version used as the platform is Matlab 7. Our secondary goal is the
implementation of the project on a DSP TMS320C6000. But the secondary goal
is in view to the time line available for the project. Certainly due to non-availability
of the card and the time we have not been able to achieve our secondary goal
but we do not regret our achievement.
