Title :
Fast algorithm for computing modulated lapped transform
Author :
Jing, Changyou ; Tai, Heng-Ming
Author_Institution :
Snap-On Diagnostics, Lincolnshire, IL, USA
fDate :
6/7/2001 12:00:00 AM
Abstract :
A fast algorithm for computing the modulated lapped transform (MLT) is proposed. This method is based on the combination of a fast MLT via a type-IV discrete cosine transform (DCT-IV) algorithm and a fast DFT-based DCT-IV algorithm. It is achieved by defining a new data-shuffling scheme. The proposed algorithm is very suitable for efficient programmable logic device (PLD) implementation
Keywords :
audio coding; computational complexity; data compression; discrete Fourier transforms; discrete cosine transforms; filtering theory; image coding; transforms; PLD implementation suitability; cosine modulated filter bank; data-shuffling scheme; discrete cosine transform algorithm; fast DFT-based DCT-IV algorithm; fast algorithm; modulated lapped transform; programmable logic device implementation; type-IV DCT algorithm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010539
