The Multiplexed Structure of Multi-channel FIR Filter and its Resources Evaluation

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.

[1]  Zhang Ren.  Principle and applications of the fiber optic hydrophone , 2004 .

[2]  Weiwu Hu,et al.  Microarchitecture of the Godson-2 Processor , 2005, Journal of Computer Science and Technology.

[3]  Li Ping.  FPGA-based implementation of PGC demodulation algorithm for fiber optic hydrophone , 2006 .

[4]  G. Deepak,et al.  Performance Characteristics of Parallel and Pipelined Implementation of FIR Filters in FPGA Platform , 2007, 2007 International Symposium on Signals, Circuits and Systems.

[5]  Abbes Amira,et al.  FPGA Realization of FIR Filters by Efficient and Flexible Systolization Using Distributed Arithmetic , 2008, IEEE Transactions on Signal Processing.

[6]  L.S. DeBrunner,et al.  Sparse FIR filters and the impact on FPGA area usage , 2008, 2008 42nd Asilomar Conference on Signals, Systems and Computers.

[7]  Daniel Llamocca,et al.  A Dynamically Reconfigurable Platform for Fixed-Point FIR Filters , 2009, 2009 International Conference on Reconfigurable Computing and FPGAs.

[8]  Khaled Benkrid,et al.  Novel Area-Efficient FPGA Architectures for FIR Filtering With Symmetric Signal Extension , 2009, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.