In this paper, a derivation and comparison of trellis-based multi-user detectors based on the so-called Forney metric and the Ungerboeck metric, respectively, is presented. Full-state detection (JMLSE) and reduced-state detection (JDDFSE) is considered. Similar to the corresponding single-user detectors, the performance of both full-state detectors is the same. In case of reduced-state detectio...

Measuring Soft X-Ray (SXR) radiation [0.1 keV; 15 keV] in tokamaks is a standard way of extracting valuable information on the particle transport and magnetohydrodynamic activity. Generally, the analysis is performed with detectors positioned close to the plasma for a direct line of sight. A burning plasma, like the ITER deuterium-tritium phase, is too harsh an environment to permit the use of ...

New results on the physical limitations to position resolution in gas detectors for X-rays ( 3-20 due to the range of photoelectrons and Auger electrons are discussed. These results were obtained with a small gap detector in which position readout was accomplished by using a very low noise centroid finding technique. A description is given of position sensitive detectors for medium rates (a few...

The Oriented Scintillation Spectrometer Experiment (OSSE) on the Arthur Holly ComptonGammaRay Observatory satellite uses four actively-shielded NaI(Tl)-CsI(Na) phoswich detectors to provide gamma-ray line and continuum detection capability in the 0:05 10 MeV energy range. The instrument includes secondary capabilities for gamma-ray and neutron detection between 10 and 250 MeV. The detectors hav...

Detecting intrusions early enough can be a challenging and expensive endeavor. While intrusion detection techniques exist for many types of vulnerabilities, deploying them all to catch the small number of vulnerability exploitations that might actually exist for a given system is not cost-effective. In this paper, we present FloGuard, an on-line intrusion forensics and on-demand detector select...

ELECT A fast tracking system is demonstrated that is based on single laser illumination and a few single-pixel single photon avalanche diode (SPAD) detectors that improves on the previous tracking of non-line-of-sight motion by a factor of 300 in laser power. With an average illumination power of only 2 mW, a 15 cm ×15 cm object located up to 2.5 m away is tracked whilst outside of the direct l...

A novel generalized feature extraction method based on the Expansion Matching (EXM) method and the Karhunen-Loeve (KL) transform is presented. This yields an eecient method to locate a large variety of features with a single pass of parallel ltering operations. The EXM method is used to design optimal detectors for diierent features. The KL representation is used to deene an optimal basis for r...

Detection systems rely more and more on on-line or off-line comparison of detected signals with basis signals in order to determine the characteristics of the impinging particles. Unfortunately, these comparisons are very sensitive to the random time shifts that may alter the signal delivered by the detectors. We present two fast algebraic methods to determine the value of the time shift and to...

The MICE experiment will provide the first measurement of ionisation cooling, a technique suitable for reducing the transverse emittance of a tertiary muon beam in a future neutrino factory accelerator facility. MICE is presently in the final stages of commissioning its beam line. The MICE luminosity monitor has proved an invaluable tool throughout this process, providing independent measuremen...

In this paper, radar detection based on Monte Carlo sampling is studied. Two detectors based on Importance Sampling are presented. In these detectors, called Particle Detector, the approximated likelihood ratio is calculated by Monte Carlo sampling. In the first detector, the unknown parameters are first estimated and are substituted in the likelihood ratio (like the GLRT method). In the sec...