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Improved navigation-based motion compensation for LFMCW synthetic aperture radar imaging

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Abstract

In this paper, a new motion compensation algorithm using navigation data is proposed for frequency domain algorithm of synthetic aperture radar (SAR) imaging. SAR processing method assumes that the sensor is moving in a straight line at a constant speed; however in reality, a SAR platform will deviate from this ideal. This non-ideal motion can seriously degrade the SAR image quality. In this study, the linear frequency-modulated continuous wave SAR signal model is presented. The effects of non-ideal motion during the SAR signal modeling are investigated, and new method for motion correction is developed. This new motion compensation algorithm is verified with simulated data and with actual data collected using FMCW mode SAR dataset.

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Authors and Affiliations

  1. Department of Electrical Engineering, Amirkabir University of Technology (Tehran Polytechnic), 424, Hafez Ave., Tehran, Iran

    Jamal Saeedi

  2. Department of Electrical Engineering, Imam Hossein Comprehensive University, Babaei Hwy, Tehran, Iran

    Seyed Mohammad Alavi

Authors
  1. Jamal Saeedi
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  2. Seyed Mohammad Alavi
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Correspondence to Jamal Saeedi.

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Saeedi, J., Alavi, S.M. Improved navigation-based motion compensation for LFMCW synthetic aperture radar imaging. SIViP 10, 405–412 (2016). https://doi.org/10.1007/s11760-015-0755-7

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  • DOI: https://doi.org/10.1007/s11760-015-0755-7

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