Design and Analysis of Chebyshev Transitional Filters
Feng Li · Information and Electronic Engineering · 2009
The conventional filters have a poor phase characteristic,i.e.,the step responses of the filters possess big overshoot and long tuning time. From the point of the poles of the transfer function,a new improved Chebyshev filter is proposed. The improved filter exhibits typical transitional characteristics. The phase performance and step response are improved while the magnitude performance is not greatly affected. Through the adjustment of filter poles,the overshoot of traditional Chebyshev filters is eliminated,and the steady-state error of traditional even-order Chebyshev filters is eliminated as well.