Title :
A frequency sampling filter design method which accounts for finite word length effects
Author :
Stubberud, Peter A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nevada Univ., Las Vegas, NV, USA
Abstract :
System functions of frequency sampling filters require pole-zero cancellations on the unit circle. For practical implementations, finite word length effects usually prevent pole-zero cancellations which can result in filter instability. The article develops an optimization method for designing a modified frequency sampling filter which is guaranteed to be stable.<>
Keywords :
analogue-digital conversion; digital filters; frequency response; optimisation; poles and zeros; stability; transient response; design method; filter instability; finite word length effects; frequency response; frequency sampling filter; optimization method; pole-zero cancellations; system functions; transient response; unit circle; Design methodology; Digital filters; Extrapolation; Finite impulse response filter; Frequency; Multidimensional systems; Optical recording; Sampling methods; Signal Processing Society; Speech processing;
Journal_Title :
Signal Processing, IEEE Transactions on
