Title :
New Fast Algorithm for Modulated Complex Lapped Transform With Sine Windowing Function
Author :
Shu, Huazhong ; Wu, Jiasong ; Senhadji, Lotfi ; Luo, Limin
Author_Institution :
Sch. of Comput. Sci. & Eng., Southeast Univ., Nanjing
Abstract :
A novel algorithm for fast computation of the modulated complex lapped transform (MCLT) with sine windowing function is presented. For the MCLT of length-2M input data sequence, the proposed algorithm is based on computing a length-2M type-II generalized discrete Hartley transform. Comparison with existing algorithms shows that the proposed method achieves the minimal number of arithmetic operations.
Keywords :
Hartley transforms; audio signal processing; audio processing; discrete Hartley transform; fast algorithm; modulated complex lapped transform; sine windowing function; Arithmetic; Computational complexity; Discrete Fourier transforms; Discrete cosine transforms; Discrete transforms; Filter bank; Helium; Image reconstruction; Signal processing algorithms; Watermarking; Audio processing; discrete Hartley transform; fast algorithm; lapped transform;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2008.2010069
