I design in Gaussian filter for a modulator in MATLAB, which should be later implemented in FPGA. I have an implemented design of the filter and the modulator as well and now I have to determine some parameters: sampling rate, oversampling factor, spectral efficiency… (Did I miss something else?)
Oversampling factor is limited by a board specification I will use.
Sampling rate as I know should be two times more that max frequency of an input signal. I have seen in a publication if an operating frequency 2, GHz, this modulator has the sampling rate = 22MSps, 70 MHz to 6 GHz = 61,44 MSps. So I can assume the sampling rate as a parameter of filter should be computed somehow, right?
Spectral efficiency is a characteristic of the output of the modulator. I need to plot a spectrum of the output signal of the modulator and check if the desired value in dB is reached. Do I understand it correctly?
Could you please correct me if my assumptions are wrong?