An optimized two-level discrete wavelet implementation using residue number system

EURASIP Journal on Advances in Signal Processing

Husam Y. Alzaq¹ 

关键词: Discrete wavelet transform (DWT);    Digital signal processing (DSP);    Residue number system (RNS);    Field programmable gate array (FPGA);   

DOI  :  10.1186/s13634-018-0559-3

学科分类：计算机科学（综合）

来源: SpringerOpen

【 摘 要 】

Using discrete wavelet transform (DWT) in high-speed signal processing applications imposes a high degree of caution to hardware resource availability, latency and power consumption. In this paper, we investigated the design and implementation aspects of a multiplier-free two-level DWT by using residue number system (RNS). The proposed two-level takes the advantage of performing the multiplication operations using only the memory without involving special multiplier units, which preserves valuable resources for other critical tasks within the FPGA. The design was implemented and synthesized in ZYNQ ZC706 development kit, taking advantage of embedded block RAMs (BRAMs). The results of the overall experimentations showed that there is a considerable improve in the proposed two-level DWT design with regard to latency and peak signal-to-noise ratio (PSNR) precision value in the final output.

【 授权许可】

Unknown