Problem Formulation
(5.52) |
where , , and . Hence we have,
(5.53) |
which can be written as
(5.54) |
or
(5.55) |
which is written in terms of only real variables.
In summary, we can use the standard least-squares solvers in matlab and end up with a real solution for the case of complex desired spectra and nonlinear-phase FIR filters.
Next Section:
Resources
Previous Section:
Matlab Support for Least-Squares FIR Filter Design