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In this paper we describe a simple and very fast method of data acquisition, feature extraction and feature space creation for epileptic seizure detection. The scalp electroencephalogram (EEG) dataset [1, 2] collected at the Children's Hospital Boston from 22 pediatric patients having 192 intractable seizures (available as CHB-MIT database) is used to assess this simple approach against existing ones...
Multi-channel, fully integrated CMOS optical receivers combining with spatially modulated photo detector (SMPD) array, transimpedance amplifiers, and limiting amplifiers are presented. It demonstrates scalable channel numbers with minimum area overhead and low cross talk of less than 0.1 dB. The receiver array is implemented in 0.18 μm CMOS and provides 20 Gbps throughput (5Gbps × 4). The conversion...
Nowadays almost all radio astronomical data is processed digitally. Digital signal process, as compared with analogue technique, has big advantages. Once the data are properly sampled and digitized and stored, the information will be kept. One could always go back to the stored data and re-process the data to obtain the desired information. But the ADC will unavoidably deteriorate the quality of the...
MWIR microsphere-lens-enhanced detectors have exhibited an increase in detector sensitivity. One factor affecting microsphere-lens-enhanced MWIR detectors sensitivity is the microsphere lens misalignment as we show in this work. Microsphere lens misalignment can cause reduced spectral responses. Modeling of all physical factors, including detector environment sources causing non-desired artifacts,...
Sensing and imaging at millimeter-wave and THz frequencies is promising for a wide range of applications, including security, industrial control, healthcare, and scientific metrology. The development of high-sensitivity, low noise detectors based on interband tunneling in III-V heterostructure devices, and their integration into subsystems is promising for realizing the potential of these applications...
QRS detection plays a key role in processing, measurements and analysis of ECG signals. There is a recognized need for reliable and objective evaluation of their performances. This task becomes difficult taking into account multiple data source, different data storage formats as well as various execution environments and modes. The aim of this project was to develop an automatic, configurable and...
In Optical Time-Resolved Reflectance, a pair of injecting and collecting optical fibers are placed at a fixed source-detector separation from each other typically in the range of 20 to 40mm limited by the detector dynamic range. To increase the sensitivity to higher penetration depth of investigation, the source and the detector separation should be small. We first show with simulation results that...
Voltage supply noise can impact circuit system performance and functionality. FPGA (Field Programmable Gate Arrays) applications vary from different usage model, the detection of supply noise is crucial for these applications. Detection sensitivity is directly related to detector stage delay. This paper discusses the detector stage delay versus sensitivity relationship. It also demonstrates a novel...
Nowadays the methods of exhaled breath analysis are developing all around the world. The exhaled breath analysis can result in a powerful tool for noninvasive medicine. The gas analyzers for exhaled breath diagnostics are presented. The analyzers are based on high precise spectrometers of the THz frequency range, which provide high resolution and sensitivity for detecting the wide set of substances...
The aim of this report is to present potential interest of a new technology of sensor for measuring terahertz radiation at room temperature and its application in imaging systems as a volumetric, safe, contact free and real-time Non-Destructive Testing systems. These imaging systems could be easily integrated in industrial facilities allowing the detection of surface, subsurface and in-depth defects...
This paper utilizes a road network robotic system called a ‘Traffic Control Signal’ (TCS). The TCS uses a variety of active sensing (‘active perception of motion’ (APMs)) but the focus will only be on pavement bicycle inductance loops. This leads to an entanglement of functionality of signal processing for motion control of Humans-to-robotic to power recharging, and enhance communications for people...
The MASPEX instrument is a high-resolution, high-sensitivity time-of-flight mass spectrometer developed for planetary applications. Its high-resolution (25,000 mMm at 10% peak height) allows the unambiguous determination of volatile isotopes of methane, water, ammonia, carbon monoxide, molecular nitrogen, carbon dioxide, and low order (C2, C3, and C4) organic compounds in complex mixtures. The use...
A novel silicon PIN diode with guard ring structure on top of the device for fast neutron dose measurement is presented. The device is designed to include p+ and n+ square contacts on each side of the high resistivity silicon, and a p+ ring surrounding the square p+ region on front side of the device. The sensitivity of the PIN diodes to Am-Be isotropic fast neutron radiation source, whose energy...
This article describes a calculation procedure of a permissible leakage flow for sealed products. It is shown how a leak detector sensitivity can be improved by changing a pressure drop and a test gas. Optimal leak rate ranges for a mass spectrometric leak detector, a portable helium leak detector and a pressure decay leak detector are suggested in order to achieve high accuracy, repeatability and...
A robust true random number generator (TRNG), able to assure high quality output at different working conditions, is an attractive solution in secure communication application, because it increases resilience against possible external attacks. Among different TRNGs, quantum RNGs (QRNG) represent a good candidate for such systems, because of their compactness, low cost and performance [1–6]. They typically...
Terahertz imaging has been gaining increasing attention for its emerging applications in security, biomedical and material characterization. Previous works have demonstrated terahertz imagers on silicon: in [1], the authors demonstrated a 280GHz 4×4 array and an 860GHz pixel using Schottky-barrier diodes; in [2], a 0.7-to-1.1THz 1k-pixel camera was presented. Unfortunately, most previous works are...
Thanks to its unique ability to deliver information about the structure, spatial distribution, and even dynamics of paramagnetic species, electron spin resonance (ESR) spectroscopy is one of the most powerful analytical techniques in modern life sciences. Recently, the method has gained significant attention as a tool to study oxidative stress, i.e., a state in which the number of reactive oxygen...
High accuracy micro sun sensors (angular resolution better than 0.1°) for space applications are designed and developed using n+/p junction twin triangular silicon photo detectors (planar process) anodically bonded with micro-optics (Corning 7740) having an etch cavity depth of around 100 µm on one side and a 300 µm wide slit patterned on high optical density black chrome on the other side. This sensor...
Millimeter wave detector is an important part of the direct detection receiver[1]. In this paper, a W-band high performance detector circuit utilizing the commercially zero bias diode [2](ZBD) from Virginia Diodes, Inc(VDI) is proposed here. As the datasheet doesn't provide us enough information of the diode, at first we did the parameter extraction from the measured I_V curve to get the series resistance...
We evaluate the performance of smart metadetection as a way to combat oracle attacks in watermarking. In a recent work, we have shown that few queries are sufficient for a simple metadetector (namely, a metadetector based on the closeness of queries to the watermark detection boundary) to detect an oracle attack. A limitation of our prior analysis is the assumption that all the queries correspond...
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