Title :
Programmable FIR filter with adder-based computing engine
Author :
Kuo, Yu-Ting ; Lin, Tay-Jyi ; Cho, Yi ; Liu, Chih-Wei ; Jen, Chein-Wei
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ.
Abstract :
This paper presents a programmable FIR core with a compact adder-based computing engine and an automatic code generator. The FIR core saves 50% area of conventional MAC-based cores in the 0.13mum implementation. Besides, the complexity-aware code generator synthesizes optimized FIR programs for a user-defined sampling period. It explores an optimal scaling factor with common subexpression elimination automatically. In our simulations, the proposed approach reduces about 10% ~ 18% computing time of MAC-based FIR cores with comparable filtering performance
Keywords :
FIR filters; adders; computational complexity; programmable filters; 0.13 micron; automatic code generator; compact adder; complexity-aware code generator; computing engine; conventional MAC-based cores; optimal scaling factor; programmable FIR core; programmable FIR filter; user-defined sampling period; Computational modeling; Computer architecture; Convolution; Digital filters; Digital signal processing; Engines; Filtering; Finite impulse response filter; Hydrogen; Sampling methods;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692945
