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Filters Matlab
Generally the process involves filtering the digital sampling of the input signal, the processing considering the current input value and considering the above entries. The last step is the reconstruction of the output signal.
In general mechanical processing is:
1 Take the current samples and some previous samples (which had been previously stored) for multiplied by coefficients defined.
2 could also take output values in past moments and multiplied by other factors.
3 Finally, all the results of these multiplications are summed to give an outlet to the current moment.
The internal processing and be digital filter input, so an analog-digital or digital-analogue conversion of digital filters for use with analog signals may be needed.
An important issue is to consider the limitations of the input filter due to Nyquist sampling theorem-Shannon i
matlab
滤波器
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