Title :
Recursive formulation of short-time discrete trigonometric transforms
Author :
Macias, J. A Rosendo ; Exposito, A. Gomez
Author_Institution :
Dept. of Electr. Eng., Seville Univ., Spain
fDate :
4/1/1998 12:00:00 AM
Abstract :
Recursive formulations of the moving-window discrete Fourier transform (DFT) are well known. However, recursive versions of other useful discrete transforms, like the moving-window discrete cosine transform (DCT), discrete sine transform (DST), or discrete Hartley transform (DHT), have not been developed so far. In this paper, second-order recursive expressions for the DCT, DST, and DHT, intended for real-valued windowed sequences, are presented
Keywords :
Hartley transforms; discrete cosine transforms; sequences; transforms; DHT; DST; discrete Hartley transform; discrete cosine transform; discrete sine transform; moving-window DCT; real-valued windowed sequences; recursive formulations; second-order recursive expressions; short-time discrete trigonometric transforms; Circuits; DH-HEMTs; Digital signal processing; Discrete Fourier transforms; Discrete cosine transforms; Discrete transforms; Fourier transforms; IIR filters; Power harmonic filters; Signal processing algorithms;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
