Title :
The Multiplexed Structure of Multi-channel FIR Filter and its Resources Evaluation
Author :
Ming, Liu ; Chao, Yan
Author_Institution :
Inst. of Acoust., Beijing, China
Abstract :
When the multi-channel FIR filter is implemented in FPGA, the demands for resources are to be reduced. The paper optimized the structure of multi-channel FIR filter whose multi-channel input data are transported through time-multiplexed mechanism. In the optimized structure of multi-channel FIR filter which is implemented in FPGA the multi-channel input data share the same single-channel FIR filter. Compared to the typical structure of multi-channel FIR filter, the resource evaluation proves that when the optimized structure is formed by different kinds of single-channel FIR filter it achieves significant reduction in the demand of registers, and it is roughly the same or achieves significant reduction in the demands of multipliers and adders.
Keywords :
FIR filters; adders; field programmable gate arrays; multiplexing; multiplying circuits; FPGA; adder; multichannel FIR filter; multichannel input data; multiplexed structure; multiplier; register; resource evaluation; single-channel FIR filter; time-multiplexed mechanism; Adders; Digital signal processing; Field programmable gate arrays; Finite impulse response filter; Multiplexing; Periodic structures; Registers; FPGA; Godson; multi-channel FIR filter; time-multiplexed;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2012 International Conference on
Conference_Location :
Hunan
Print_ISBN :
978-1-4673-0458-0
DOI :
10.1109/CDCIEM.2012.187
