Two-Rate Based Low-Complexity Variable Fractional-Delay FIR Filter Structures

• Published in: IEEE transactions on circuits and systems. I, Regular papers Vol. 60; no. 1; pp. 136 - 149
• Main Authors: Johansson, H., Hermanowicz, E.
• Format: Journal Article
• Language: English
• Published: IEEE 01.01.2013
• Subjects: Approximation error; Bandwidth; Complexity theory; Delay; Finite impulse response filter; FIR filters; frequency-response masking; half-band filters; linear phase; low complexity; low delay; minimax design; Periodic structures; TECHNOLOGY; TEKNIKVETENSKAP; Transfer functions; variable fractional delay

This paper considers two-rate based structures for variable fractional-delay (VFD) finite-length impulse response (FIR) filters. They are single-rate structures but derived through a two-rate approach. The basic structure considered hitherto utilizes a regular half-band (HB) linear-phase filter and...