A unified polyphase representation of analysis and synthesis filter banks is introduced in this paper, and then the efficient implementation on digital signal processors (DSP) is investigated. Especially, the number of memory accesses, power consumption, processing accuracy and the required instruction cycles are discussed. Firstly, a unified representation is given, and then two types of procedures, SIMO system-based and MISO system-based procedures, are shown, where SIMO and MISO are abbreviations for single-input/multiple-output and multiple-input/single-output, respectively. These procedures are compared to each other. It is shown that the number of data load in SIMO system-based procedure is a half of that in MISO system-based procedure for two-channel filter banks. The implementation of M-channel filter banks is also discussed.
雑誌名
IEICE transactions on fundamentals of electronics, communications and computer sciences
巻
E84-A
号
8
ページ
1951 - 1959
発行年
2001-08
出版者
The Institute of Electronics, Information and Communication Engineers
Memory Access Estimation of Filter Bank Implementation on Different DSP Architectures
e84-a_8_1951.pdf
(1.23MB)
学術リポジトリとは