摘要
子波变换是信号处理和图像压缩等诸多领域中一个非常有效的数学分析工具。日前,其实现方式多为软件编程。本文针对子波变换与滤波器组的关系,在卷积滤波、下二采样过程中,将数据按一定规律重排,用复杂可编程逻辑器件(CPLD)设计了一种专用芯片(ASIC)可完成离散子波分解,具有一定的实用价值。
The wavelet transform is a very effective mathematical tools for many fields such as signal processing and image coding, which is implemented by program in most cases. This paper presents a novel architecture suitable with CPLD chip for one- dimension DWT decomposition based on the relationship between wavelet transform and filter banks by rearranging the data in the processing of convolution and downsample by two. It possesses some practicable value with certain speed and decreased resources.
出处
《电子与信息学报》
EI
CSCD
北大核心
2002年第2期280-284,共5页
Journal of Electronics & Information Technology
