The output of an N-point FFT (Fast Fourier Transform) is zero at odd positions if its inputs at odd positions with N/2 distance are equal and this property is exploited in order to reduce the power consumed by the FFT circuitry when operating on sparse data. An OFDM (Orthogonal Frequency Division Multiplexing) transceiver with such a configurable FFT is described where undersampling is applied in order to reduce the ADC (Analog Digital Conversion) powe Read More

The monitoring of the power level during nuclear reactors operation is done by instruments which measure the neutron flux. The calibration of this power is carried out by thermal means. Its accurate knowledge is critical to the fuel burnup calculations and mainly to electrical power. Nuclear fuel burning is proportional to the thermal power released by the reactor and is extremely relevant for the calculation of uranium-235 mass burned profile knowl Read More

The “Internet-of-Things" (IoT) paradigm has been extensively focused in the last years since it covers a wide scope of applications that range from spam detection in e-mail datasets to on-body sensors. However this data flooding also known as “big data" phenomenon has required high levels of security since private and important data are now surfing over our heads. In this paper we introduced a recently developed pattern recognition technique called Read More

Mostly pure tone fault of loudspeakers in the world is detected by human hearing. Obviously the accuracy could not be guaranteed due to subjectivity and it is easy to cause auditory fatigue. Based on the characteristics of loudspeaker’s pure tone detection we propose that the response signal of frequency sweep can be converted into two-dimension timefrequency image signal to enhance the characteristics of fault information through wavelet packet trans Read More

The THREAD Act (Transportation Recall Enhancement Accountability and Documentation) mandated the use of a suitable tyre pressure monitoring system (TPMS) technology in all light motor vehicles under 5 tons. In the United States as of 2008 and the European Union as of November 1 2012 all new passenger car models released must be equipped with a TPMS. This would alert drivers of under-inflation events. Many countries followed the adoption of TP Read More

The scientific and accurate prediction for state of bearing is the key to ensure its safe operation. A rotating bearing monitoring system was presented in U.S. Patent 7606673 and a bearing condition monitoring apparatus was presented in U.S. Patent 8229682 however the system or apparatus lacks state prediction function of bearing. State prediction of bearing based on relevance vector regression algorithm with RBF kernel is proposed in this paper. Kurtosis Read More

Biometric systems use automated methods for pattern recognition in determining the authenticity of a specific physiological or behavioral characteristic of an individual to determine or verify identity. In this work 2D and 3D palmprints are integrated in order to construct an efficient multi-biometric identification system based on matching score level fusion. In this paper we try to evaluate the usefulness of the 2D and 3D palmprints for improving the palmp Read More