firfilt

(ee2200/firfilt.m)

Function Synopsis

c = firfilt(a, b)

Help text

FIRFILT   FIR filter difference equation for EE2200.
          Y = FIRFILT(B, X) implements the FIR
          filter difference equation:

                   M-1
                   __
                   \
           y[n]=   /  b[k] * x[n-k]
                   --
                   k=0

          The resulting vector is length
          LENGTH(B)+LENGTH(X)-1.

 NOTE:
   Convolution, polynomial multiplication, and FIR digital
   filtering are all equivalent operations. The Matlab
   function CONV does convolution---it is identical to 
   FIRFILT
             C = CONV(A, B)
    convolves vectors A and B. If A and B are vectors of
    polynomial coefficients, convolving them is equivalent
    to multiplying the two polynomials.

Cross-Reference Information

else           /tools/hpmatlab/toolbox/matlab/lang/else.m
end            /tools/hpmatlab/toolbox/matlab/lang/end.m
filter         /tools/hpmatlab/toolbox/matlab/datafun/filter.m
if             /tools/hpmatlab/toolbox/matlab/lang/if.m
max            /tools/hpmatlab/toolbox/matlab/datafun/max.m
size           /tools/hpmatlab/toolbox/matlab/general/size.m