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16 February 2022 Adaptive filter based on FPGA implementation of LMS algorithm
Genwu Li, Dan Zeng, Hongyu Li
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Proceedings Volume 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021); 121640I (2022) https://doi.org/10.1117/12.2628613
Event: 2021 International Conference on Optoelectronic Materials and Devices, 2021, Guangzhou, China
Abstract
In the digital signal processing, in order to realize the automatic updating of the filter weight coefficient, this paper adopts an adaptive filter based on Cyclone IV EP4CE6 series FPGA to realize LMS algorithm to solve this problem. This paper analyzes the basic principle of the minimum mean square error (LMS) adaptive algorithm and the peripheral hardware circuit. The high parallelism and high computing performance of the FPGA ensure the convergence and stability of the algorithm in this scheme. The simulation results of MATLAB and Modelsim and the measured waveforms of the oscilloscope show that the design can be applied to the actual digital signal system smoothly.
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Genwu Li, Dan Zeng, and Hongyu Li "Adaptive filter based on FPGA implementation of LMS algorithm", Proc. SPIE 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021), 121640I (16 February 2022); https://doi.org/10.1117/12.2628613
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KEYWORDS
Filtering (signal processing)
Digital filtering
Field programmable gate arrays
Signal attenuation
Digital signal processing
MATLAB
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