论文信息 - Feasibility of fixed-point transversal adaptive filters in FPGA devices with embedded DSP blocks

Feasibility of fixed-point transversal adaptive filters in FPGA devices with embedded DSP blocks

Transversal adaptive filters for digital signal processing have traditionally been implemented into DSP processors due to their ability to perform fast floating-point arithmetic. However, with its growing die size as well as incorporating the embedded DSP block, the FPGA devices have become a serious contender in the signal processing market. Although it is not yet feasible to use floating-point arithmetic in modern FPGAs, it is sufficient to use fixed-point arithmetic and still achieve tap-weight convergence for adaptive filters. This paper examines the feasibility of implementing an adaptive algorithm, namely the LMS algorithm, based on fixed-point arithmetic, using the Altera Stratix device.

[1] Proceedings of the 3rd IEEE International Workshop on System-on-Chip for Real-Time Applications (IWSOC'03), 30 June - 2 July 2003, Calgary, Alberta, Canada , 2003, IWSOC.

[2] Simon Haykin,et al. Adaptive Filter Theory 4th Edition , 2002 .

[3] Shawki Areibi,et al. Feasibility of Floating-Point Arithmetic in FPGA based Artificial Neural Networks , 2002 .

[4] P. Fortier,et al. VLSI IMPLEMENTATION OF PARALLEL-SERIAL LMS ADAPTIVE FILTERS , 2022 .

[5] B. Farhang-Boroujeny,et al. FPGA implementation of acoustic echo cancelling , 1999, Proceedings of IEEE. IEEE Region 10 Conference. TENCON 99. 'Multimedia Technology for Asia-Pacific Information Infrastructure' (Cat. No.99CH37030).