Browsing Reprints by Author "Haralabus, Georgios"
Now showing items 1-6 of 6
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Active detection enhancement in coastal areas
Haralabus, Georgios; Baldacci, Alberto; Laterveer, Rene (NURC, 2006/08)The processing chain used for active detection analysis in association with measures of performance that allow real time performance monitoring is presented. Real life examples demonstrating environmental volatility ... -
Adaptive normalization of active sonar data
Baldacci, Alberto; Haralabus, Georgios (NURC, 2006/08)In active sonar detection the background interference is reduced through normalization prior to applying a detection threshold. From the two mainstream normalization algorithms, i.e. the sliding window and the split window, ... -
Adaptive sub-band processing in active detection and tracking
Baldacci, Alberto; Haralabus, Georgios; Coraluppi, Stefano; Prior, Mark K. (NURC, 2007/11)Broadband active systems have the potential to increase detection performance in reverberation-limited areas through increased signal bandwidth, i.e. small resolution cell. However, large bandwidth could over-resolve the ... -
Cardioid receive array calibration for active systems
Baldacci, Alberto; Haralabus, Georgios; Van Velzen, Marcel (NURC, 2006/08)Nowadays active detection improvement relies significantly on advanced sensor technology, such as the cardioid receive array that allows the directional (right/left) discrimination of the received signal. However, in ... -
Impact of seafloor and water column parameter variations on signal-to-background ratio estimates: a sensitivity study based on sonar performance modeling
Baldacci, Alberto; Haralabus, Georgios (NURC, 2006/08)Regardless of how accurate modeling can be, if the set of assumptions made with regard to the propagation conditions are not precise, sonar performance predictions diverge from the corresponding measured values. Here a ... -
Signal processing for an active sonar system suitable for advanced sensor technology applications and environmental adaptation schemes
Baldacci, Alberto; Haralabus, Georgios (NURC, 2006/08)An overview of the basic elements of an active sonar system in conjunction with a description of the signal processing chain utilized at the NATO Undersea Research Centre for detection and localization of undersea targets ...