Reconfigurable SoC-Based Smart Sensor for Wavelet and Wavelet Packet Analysis
作者： Rene J. Romero-Troncoso , Marcos Pena-Anaya , Eduardo Cabal-Yepez , Arturo Garcia-Perez , Roque A. Osornio-Rios
关键词: Signal processing 、 Intelligent sensor 、 Wavelet transform 、 Wavelet packet decomposition 、 Instrumentation (computer programming) 、 Network packet 、 Engineering 、 Wavelet 、 Real-time computing 、 System on a chip
摘要: Modern monitoring systems require high-performance instrumentation, low-cost primary sensors, online signal processing, portability, and versatility. Smart sensor utilization is an approach to comply with these features. From industrial point of view, voltage, electric current, vibrations are signals commonly analyzed during system monitoring, wavelet packet transforms popular techniques for extracting time-frequency information from signals. Here, a system-on-chip-based smart reconfigurable architecture proposed analysis applying either or transform. The uses proprietary hardware processing unit custom embedded microprocessor. It can connect different sensors without additional instrumentation shows obtained results in 2-D 3-D view on video graphics array screen liquid crystal display. Obtained three study cases demonstrate that the able show real-time frequency evolution effects time-varying
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