Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/ijap/volume-2017/7253059/figures/7253059.fig.004a.svgz" name="7253059.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Range profile comparison between FDE and conventional TDM</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/ijap/volume-2017/7253059/figures/7253059.fig.004b.svgz" name="7253059.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Range profile comparison of FDEM with different zero-padding times</td></tr></table>

<div>Range profile obtained by FDEM, SNR = −20 dB.</div>

International Journal of Antennas and Propagation

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Figure 4

Figure 4: Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm 