An Algorithm for Motion Compensation in Synthetic Aperture Radar (SAR) Based on Real-time Sub-aperture (RTS) Image Formation Algorithm

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SAMAREH HASHEMI S.R.

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Journal Paper

Paper Information

Journal: JOURNAL OF RADAR Year:2019 | Volume:7 | Issue:1 (SERIAL No. 21) Page(s): 25-38

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Title

An Algorithm for Motion Compensation in Synthetic Aperture Radar (SAR) Based on Real-time Sub-aperture (RTS) Image Formation Algorithm

Author(s)

SAMAREH HASHEMI S.R. | Issue Writer Certificate

Keywords

Real-Time Sub-Aperture Algorithm (RTS)Q1

Sub-Aperture ProcessingQ1

AutofocusQ1

Synthetic Aperture Radar (SAR)Q1

Abstract

In this paper an algorithm based on the real-time sub-aperture (RTS) algorithm is presented for phase error estimation and compensation of synthetic aperture radar (SAR) in the case of non-ideal platform motion. In the proposed algorithm, the signal is input into the RTS algorithm, then extracting the peak time of different Sub-Aperture Processing channels, the phase gradient of peak times is computed and after integration and interpolation, the estimated phase error is compensated in the received signal and finally the RTS algorithm is executed again in order to form the final image. Using the proposed algorithm, the motion compensation (Autofocus) ability can be added to the RTS algorithm without changing its processing core whilst keeping the real-time capability. Simulations show the effectiveness of the proposed algorithm for compensating phase errors due to motion fluctuations of the radar platform.

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APA: Copy

SAMAREH HASHEMI, S.R.. (2019). An Algorithm for Motion Compensation in Synthetic Aperture Radar (SAR) Based on Real-time Sub-aperture (RTS) Image Formation Algorithm. JOURNAL OF RADAR, 7(1 (SERIAL No. 21)), 25-38. SID. https://sid.ir/paper/409388/en

Vancouver: Copy

SAMAREH HASHEMI S.R.. An Algorithm for Motion Compensation in Synthetic Aperture Radar (SAR) Based on Real-time Sub-aperture (RTS) Image Formation Algorithm. JOURNAL OF RADAR[Internet]. 2019;7(1 (SERIAL No. 21)):25-38. Available from: https://sid.ir/paper/409388/en

IEEE: Copy

S.R. SAMAREH HASHEMI, “An Algorithm for Motion Compensation in Synthetic Aperture Radar (SAR) Based on Real-time Sub-aperture (RTS) Image Formation Algorithm,” JOURNAL OF RADAR, vol. 7, no. 1 (SERIAL No. 21), pp. 25–38, 2019, [Online]. Available: https://sid.ir/paper/409388/en

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