Abstract: Applied science and mechanics need mathematical methods for 2D processes modeling using the set of data points. A novel method of Hurwitz-Radon Matrices (MHR) is used in 2D curve modeling. Proposed method is based on the family of Hurwitz-Radon matrices which possess columns composed of orthogonal vectors. Two-dimensional process is modeled via different functions: sine, cosine, tangent, logarithm, exponent, arc sin, arc cos, arc tan and power function

• Publication Date: 27-Aug-2014
• DOI: 10.15224/978-1-63248-024-8-63
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Abstract: This paper considers a ship detection in synthetic aperture radar (SAR) systems constructed on the basis of generalized detector (GD). To obtain better results without ambiguity it is better to use multi-channel SAR with more than two antennas. However, there are very few SAR systems with more than a single antenna, which is because of the complexity and immense data rates produced by multi-channel systems. So, it is preferred to use single channel SAR systems. In this research a single channel Envisat image is considered, in order to have more accurate result the symmetrical sub-aperture images (multi-look) are obtained from splitting a 1024×1024 part of Envisat image. The GD which is a combination of the Neyman-Pearson detector and the energy detector is applied on three separate sub-apertures with a limited number of ships. The intensity of pixels are compares with the GD threshold to make a decision statistics under hypothesis H0 and H1 to find ships in the sub-apertures.

• Publication Date: 27-Aug-2014
• DOI: 10.15224/978-1-63248-024-8-65
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