一种小波分解滤波器高速实现结构
AN IMPLEMENTATION OF WAVELET DECOMPOSITION FILTER BASED ON SYSTOLIC STRUCTURE
-
摘要: 近年来,小波变换得到了广泛的应用,快速塔式分解算法是它应用的一个有利工具,其地位相当于FFT之于Fourier分析,因此DWT的快速硬件实现变成了其应用的一个重要问题,本文通过将并行systolic FIR滤波器结构引入小波分解滤波器的设计,得到了一种小波分解滤波器的实现结构。该结构由于应用了systolic技术及采用并行结构,除了可以提高运算速度外,还可以提高系统的数据吞吐率以及降低系统功耗。Abstract: In recent years, the wavelet transform has been widely used in many fields. The fast tower-type algorithm is an efficient tool. Its importance is just like that of FFT in the Fourier analysis. Therefore the hardware implementation of the DWT is an important problem in its applications. With the introduction of the parallel systolic FIR filter structure to the design of the wavelet decomposition filter, an implementation structure of wavelet decomposition filter is presented in this paper. As being parallel and systolic, the structure can increase data throughput and reduce power consumption of the system as well as enhance operation speed.
-
水鹏朗,广义内插小波和递归内插小波理论及应用的研究,[博士论文],西安,西安电子科技大学,1998[2]Shang Yong.[J].Wu Shunjun, Design of parallel adaptive FIR filters, IEEE APCCAS98, Chiangmai,Thailand.1998,:-[3]P.P. Vaidyanathan, Multirate digital filters, filter banks, polyphase networks, and applications,A tutorial. Proc. IEEE, 1990, 78(1), 56-93.[4]尚勇,吴顺君,一种新的FIR滤波器脉动实现结构,电子学报已录用.[5]贡三元,VLSI阵列处理,南京,东南大学出版社,1992,132-193.[6]S.K.Rao, T. Kailath, Regular iterative algorithms and their implementation on processor arrays.Proc. IEEE, 1988, 76(3), 259-269. -
计量
- 文章访问数: 2094
- HTML全文浏览量: 110
- PDF下载量: 456
- 被引次数: 0
下载:
