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A fast multichannel SAR raw data simulator of clutter and moving targets

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Abstract

Accessibility of a fast and accurate multichannel synthetic aperture radar raw data generator of stationary clutter and moving targets has high importance, especially in the application of ground moving target indication. In this paper, a fast four-stage algorithm for generating the raw data of each channel stationary clutter and moving targets, has been proposed respectively in the frequency and the hybrid time–frequency domain. Using this simulator, in different conditions in terms of target motion speed, acceleration and direction, for each of the channels, after generating the raw data, its final image has been extracted by the range-Doppler algorithm. Then, using clutter suppression techniques such as DPCA, ATI and hybrid DPCA–ATI, the multichannel SAR final image has been obtained in ideal and nonideal conditions. Finally, the obtained images of the first channel have been studied using the extracted formulas for predicting the effects of target motion parameters on the SAR images as well as analyzing the multichannel SAR final image. The results show that the proposed algorithm for generating the raw data of each channel stationary clutter and moving targets has better performance in terms of speed and accuracy than the other existing simulators and the proposed multichannel SAR simulation method has high quality.

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Authors and Affiliations

  1. Department of Electrical Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran

    Meysam Mohammadi & Alimorad Mahmoudi

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  1. Meysam Mohammadi
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  2. Alimorad Mahmoudi
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Correspondence to Meysam Mohammadi.

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Mohammadi, M., Mahmoudi, A. A fast multichannel SAR raw data simulator of clutter and moving targets. Multidim Syst Sign Process 28, 1367–1391 (2017). https://doi.org/10.1007/s11045-016-0413-4

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  • DOI: https://doi.org/10.1007/s11045-016-0413-4

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