Journal
ELECTRONICS
Volume 8, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/electronics8121533
Keywords
overlapping; windowing; overlap-add method; Fourier analysis; synthesis; FPGA
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Funding
- Natural Sciences and Engineering Research Council of Canada
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This paper proposes a simple and efficient FPGA-based architecture of the overlapping/windowing and overlap-add methods for real-time FFT/IFFT-based signal processing algorithms. The analyzed signal is divided into short-time overlapping frames that are windowed before applying Fourier analysis/synthesis. Then, the original signal is reconstructed from the windowed (modified) frames using the overlap-add (OLA) technique. The proposed architecture was implemented on Field Programmable Gate Array (FPGA) using a high-level programming tool in MATLAB/SIMULINK environment. Its performance was evaluated on artificial and actual signals using objective metrics.
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