Article · Pattern Recognition and Image Analysis · July 1, 2016
Signal classification and software–hardware implementation of digital filter banks based on field-programmable gate arrays and compute unified device architecture
Dmitrii Kaplun, Dmitry M. Klionskiy, Vyacheslav V. Gulvanskiy, Alexander S. Voznesensky, A. M. Golubkov, Геппенер Владимир Владимирович
Abstract
The paper is devoted to handling wideband monitoring tasks by discrete Fourier transform (DFT) modulated filter banks. Filter bank implementation is considered using CPU (Central Processing Unit) and CUDA (Compute Unified Device Architecture) based on GPUs (Graphics Processing Units). We show that CUDA is more efficient for big signal sets due to low temporal and computational costs. The paper also discusses signal classification in filter bank channels for different signal-to-noise ratios using binary decision trees (with the iterative Adaboost procedure) and neural networks. The total classification error in our experiments does not exceed 10%. The results can be extended and applied to hydroacoustic monitoring tasks.
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