Title :
Nonuniform filter banks: a reconstruction and design theory
Author :
Nayebi, Kambiz ; Barnwell, Thomas P., III ; Smith, Mark J T
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
A general procedure for the design of analysis-synthesis systems based on nonuniform filter banks is described. The procedure is based on a time-domain analysis of nonuniform systems, which results in a set of conditions for the exact reconstruction of the input signal at the output. These conditions are used as part of a powerful iterative algorithm for designing finite impulse response (FIR) filter banks with an arbitrary nonuniform frequency resolution. This new framework permits the design of systems with arbitrary rational decimation rates in different bands. Systems based on maximally or nonmaximally decimated filter banks, on low and minimum delay systems, and on block decimators are also among the systems that can be designed using this method
Keywords :
digital filters; time-domain analysis; time-domain synthesis; FIR filter banks; analysis-synthesis systems; arbitrary nonuniform frequency resolution; block decimators; design theory; maximally decimated filter banks; nonmaximally decimated filter banks; nonuniform filter banks; reconstruction; time-domain analysis; Algorithm design and analysis; Channel bank filters; Delay systems; Filter bank; Finite impulse response filter; Frequency; Iterative algorithms; Sampling methods; Signal resolution; Time domain analysis;
Journal_Title :
Signal Processing, IEEE Transactions on
