Title :
Reconfigurable implementation of recursive DCT kernels for reduced quantization noise
Author :
Demirsoy, Süleyman Sirri ; Beck, Robert ; Dempster, Andrew G. ; Kale, Izzet
Author_Institution :
Dept. of Electron. Syst., Westminster Univ., London, UK
Abstract :
Time multiplexed implementations of die recursive DCT processors are widely used in many multimedia and compression applications. The recently proposed three Goertzel kernels offer significant improvement (up to 90%) in the noise performance of the time-multiplexed architecture, allowing a reduction in word-length specifications. In this paper, a highly optimized reconfigurable DCT architecture is proposed that can perform the function of three different kernels (Type A, B and C) on Virtex FPGA.
Keywords :
IIR filters; VLSI; digital filters; digital signal processing chips; discrete cosine transforms; field programmable gate arrays; integrated circuit noise; reconfigurable architectures; Goertzel kernels; Virtex FPGA; compression applications; multimedia applications; quantization noise reduction; reconfigurable DCT architecture; recursive DCT kernels; recursive DCT processors; time-multiplexed architecture; Computer architecture; Discrete cosine transforms; Field programmable gate arrays; Filters; Frequency; Kernel; Noise figure; Noise reduction; Quantization; Table lookup;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205830
