一種小波分解濾波器高速實現(xiàn)結(jié)構(gòu)
AN IMPLEMENTATION OF WAVELET DECOMPOSITION FILTER BASED ON SYSTOLIC STRUCTURE
-
摘要: 近年來,小波變換得到了廣泛的應(yīng)用,快速塔式分解算法是它應(yīng)用的一個有利工具,其地位相當(dāng)于FFT之于Fourier分析,因此DWT的快速硬件實現(xiàn)變成了其應(yīng)用的一個重要問題,本文通過將并行systolic FIR濾波器結(jié)構(gòu)引入小波分解濾波器的設(shè)計,得到了一種小波分解濾波器的實現(xiàn)結(jié)構(gòu)。該結(jié)構(gòu)由于應(yīng)用了systolic技術(shù)及采用并行結(jié)構(gòu),除了可以提高運算速度外,還可以提高系統(tǒng)的數(shù)據(jù)吞吐率以及降低系統(tǒng)功耗。
-
關(guān)鍵詞:
- 小波分解; Systolic結(jié)構(gòu); 并行實現(xiàn)
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. -
水鵬朗,廣義內(nèi)插小波和遞歸內(nèi)插小波理論及應(yīng)用的研究,[博士論文],西安,西安電子科技大學(xué),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,吳順君,一種新的FIR濾波器脈動實現(xiàn)結(jié)構(gòu),電子學(xué)報已錄用.[5]貢三元,VLSI陣列處理,南京,東南大學(xué)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. -
計量
- 文章訪問數(shù): 2112
- HTML全文瀏覽量: 115
- PDF下載量: 456
- 被引次數(shù): 0
下載:
