Hi! I have implemented in MATLAB a digital filter, it is a chebyshev 1 type, fourth order one, Low-Pass with a cut-off frequency of 1 kHz.
Now I want to test my filter using a data transission process, i.e. a sequence of 50 random bits the bit rate is 500 bit/s. Using as input of my filter the signal of fig1. I get as output the one of fig.2. It is correct? How should interpret the result?
I obtain also that the two signals, input and output have very similar mean variance and rms? what does it means?