How to find an optimum linear interpolator replacement for the ideal sinc function? The reason is for the hardware implementation ease.
For example when I use sinc interpolation:
Temp = sinc( (-7:7)+0.1697 ) * ADC( (0:14)+2 )';
I get 0.9509; however with linear interpolation:
yi = interp1((0:14)+2 , ADC((0:14)+2) , (0:14)+2-0.1697 , 'linear'); Temp = yi(8);
I get Temp = 0.8410. Is there any better interpolation possible with linear?