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A novel model for three-dimensional imaging using interferometric ISAR in any curved target flight path

Nasirian, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/TGRS.2013.2271875
  3. Abstract:
  4. Using a second receiver antenna close to the main transceiver antenna of inverse synthetic aperture radar (ISAR), it is possible to find 3-D positions of target scattering points. Such system is called bistatic, monopulse, or interferometric ISAR (InISAR). In the conventional model of ISAR, the unknown flying object should have a linear trajectory, and only small deviations from this trajectory can be compensated. Target motions which are highly nonlinear or curvy cannot be used in the conventional model. In this paper, we propose a new model for InISAR to process all collected data from the target, regardless of the form of the flight path. More accuracy is achieved for 3-D positioning of the target scattering points by this model because all parts of the flight path contribute in it. We will show the effectiveness of the proposed model in a nonlinear flight path by simulation
  5. Keywords:
  6. Interferometry ; Modeling ; Antennas ; Data processing ; Image reconstruction ; Inverse synthetic aperture radar ; Models ; Radar antennas ; Scattering ; Synthetic aperture radar ; Conventional modeling ; Curved targets ; Linear trajectory ; Receiver antennas ; Target motions ; Three dimensional imaging ; Transceiver antennas ; Three dimensional ; Accuracy assessment ; Imaging method ; Numerical model ; Radar interferometry
  7. Source: IEEE Transactions on Geoscience and Remote Sensing ; Vol. 52, issue. 6 , 2014 , pp. 3236-3245 ; ISSN: 01962892
  8. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6564442