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Browsing Defence, peace, safety & security by Author "Salmon, BP"

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  • Schwegmann, CP; Kleynhans, W; Salmon, BP; Mdakane, L (IEEE, 2015-07)
    The Maritime Domain Awareness initiative seeks to constantly improve the ways in which maritime information is collected. With the recent release of free Sentinel-1 imagery to the public, monitoring the maritime environment ...
  • Schwegmann, Colin P; Kleynhans, Waldo; Salmon, BP (IEEE, 2017-05)
    The usage of remote sensing to observe environments necessitates interdisciplinary approaches to derive effective, impactful research. One remote sensing technique, Synthetic Aperture Radar, has shown significant benefits ...
  • Kleynhans, W; Olivier, JC; Salmon, BP; Wessels, Konrad J; Van den Bergh, F (IEEE, 2009-07)
    It is proposed that the NDVI time series derived from MODIS multitemporal remote sensing data can be modelled as a triply (mean, phase and amplitude) modulated cosine function. A non-linear Extended Kalman Filter was ...
  • Salmon, BP; Kleynhans, W; Schwegmann, CP; Olivier, JC (IEEE, 2015-07)
    An important aspect of research in the remote sensing field is to objectively compare different classifiers. This is the foundation of hundreds of research projects and in this paper we will address some raising concerns ...
  • Salmon, BP; Olivier, JC; Kleynhans, W; Wessels, Konrad J; Van den Bergh, F (IEEE, 2009-07)
    This paper shows that a feedforward Multilayer Perceptron (MLP) operating over a temporal sliding window of multispectral time series MODerate-resolution Imaging Spectroradiometer (MODIS) satellite data is able to detect ...
  • Schwegmann, CP; Kleynhans, W; Salmon, BP; Mdakane, L (IEEE, 2015-07)
    The ability to reliably detect ships within the ocean is one of the core capabilities of Maritime Domain Awareness. Constant improvements are pursued in both computational speed and reliable responses to events by exploring ...
  • Kleynhans, W; Salmon, BP; Schwegmann, CP; Seotlo, MV (IEEE Xplore, 2013-07)
    Regular surveillance of territorial sea areas is increasingly important for coastal nations as these marine areas are a valuable economic resource (e.g. for fisheries or oil extraction). The responsibility for the ...
  • Schwegmann, CP; Kleynhans, W; Salmon, BP (IEEE, 2014-07)
    Synthetic Aperture Radar images is a proven technology that can be used to detect ships at sea which have no active transponders (commonly referred to as dark targets). Various methods have been proposed that process SAR ...
  • Schwegmann, CP; Kleynhans, W; Salmon, BP (IEEE, 2014-07)
    Synthetic Aperture Radar images are able to detect ships that would be hidden to tradition ship tracking methods due to their transponders being turned off. Using a SAR image as input, the CFAR method can highlight these ...
  • Grobler, TL; Van Zyl, AJ; Olivier, JC; Kleynhans, W; Salmon, BP; Penzhorn, WT (Academic Journals, 2012-01)
    In this paper we reviewed Wu’s algorithm and introduced it as a cryptanalysis technique. This study reveals that when Wu’s algorithm is used for cryptanalysis it simplifies. This is true because Wu’s algorithm has to be ...

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