Incoherent Detection Error Correction in the High-resolution SAR(Synthetic Aperture Radar) Imaging System 


Vol. 27,  No. 11, pp. 1055-1062, Nov.  2002


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  Abstract

The success of target reconstruction in SAR(Synthetic Apenure Radar) imaging system is greatly dependent on the coherent detection. Primary causes of incoherent detection are uncompensated target or sensor motion, random turbulence in propagation media, wrong path in radar platform, and etc.. And these appear as multiplicative phase error to the echoed signal, which consequently, causes fatal degradations such as fading or dislocation of target image.
In this paper, we present iterative phase error estimation scheme which uses echoed data in all temporal frequencies. We staned with analyzing wave equation for one point target and extended to overall echoed data from the target scene - The two wave equations governing the SAR signal at two temporal frequencies of the radar signal are combined to derive a method to reconstruct the complex phase error function. Eventually, this operation attains phase error correction algorithm from the total received SAR signal. We verify the success of the proposed algorithm by applying it to the simulated spotlight-mode SAR data.

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  Cite this article

[IEEE Style]

J. Choi, "Incoherent Detection Error Correction in the High-resolution SAR(Synthetic Aperture Radar) Imaging System," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 11, pp. 1055-1062, 2002. DOI: .

[ACM Style]

Jeong-Hee Choi. 2002. Incoherent Detection Error Correction in the High-resolution SAR(Synthetic Aperture Radar) Imaging System. The Journal of Korean Institute of Communications and Information Sciences, 27, 11, (2002), 1055-1062. DOI: .

[KICS Style]

Jeong-Hee Choi, "Incoherent Detection Error Correction in the High-resolution SAR(Synthetic Aperture Radar) Imaging System," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 11, pp. 1055-1062, 11. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880