EXPERIMENT-1 BLOG

This experiment was based on the different types of convolution . We had studied about convolution in the last semester in Signals and systems. In convolution we have done linear convolution which is based on linear time invariant system.Circular convolution is defined for finite length functions.We have calculated LC using CC by padding the input sequences with zero. Convolution is quite often used as a method of implementing filters of various types.We have observed the output on Code composer studio(CCS).

So this entire experiment was done on code composer studio (CCS) simulator and we observed the output in the ccs software itself . All the concepts and theory of this practical were taught in our Digital communication subject. The aim of the experiment was to develop a program on BPSK(Binary shift keying) , DPSK ,QPSK and harmonic generation. Phase Shift Keying (PSK) is the digital modulation technique in which the phase of the carrier signal is changed by varying the sine and cosine inputs at a particular time. In BPSK  the sine wave carrier takes two phase reversals such as 0° and 180°. In QPSK This is the phase shift keying technique, in which the sine wave carrier takes four phase reversals such as 0°, 90°, 180°, and 270°. We then observed the waveform for harmonics which showed the fundamental frequency 1st and 2nd harmonic.