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PIER PIER B PIER C PIER M PIER Letters
2007-12-23
Application of Synthetic Bandwidth Approach in SAR Polar Format Algorithm Using the Deramp Technique
By
Xin Nie,

    Dr. Xin Nie

    Nanjing University of Aeronautics & Astronautics

    China

    Homepage

Dai-Yin Zhu,

    Dr. Dai-Yin Zhu

    Department of Electronic Engineering

    Nanjing University of Aeronautics & Astronautics

    China

    Homepage

Zhao-Da Zhu

    Dr. Zhao-Da Zhu

    Department of Electronic Engineering

    Nanjing University of Aeronautics & Astronautics

    China

    Homepage

Progress In Electromagnetics Research, Vol. 80, 447-460, 2008
doi:10.2528/PIER07121409
Abstract
The problem of wide bandwidth management in ultra-high resolution SAR systems can be solved by adopting stepped chirps and applying synthetic bandwidth approach. However, high resolution SAR image formation is a non-separable 2-D impulse compression processing, so the synthetic bandwidth procedure should be modified correspondingly with the image formation algorithm adopted. This paper demonstrates the application of synthetic bandwidth approach in SAR Polar Format Algorithm (PFA) using the deramp technique. The problem of motion compensation between the sub-pulses within a burst is discussed, and the signalpro cessing flows are investigated in detail. The presented approach is validated by point target simulation.
Citation
Xin Nie, Dai-Yin Zhu, and Zhao-Da Zhu, "Application of Synthetic Bandwidth Approach in SAR Polar Format Algorithm Using the Deramp Technique," Progress In Electromagnetics Research, Vol. 80, 447-460, 2008.
doi:10.2528/PIER07121409
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