We present a technique for interferometric processing of extreme high-squint synthetic aperture radar (SAR) target images. The technique is an improvement over conventional SAR interferometry, as it takes into account the change in relative phase between channels that occur as the radar moves through the synthetic aperture, which can be significant for forward-looking data acquisition geometry. We apply the technique to simulate data from a variety of imaging cases and show that, unlike the conventional interferometric technique, the proposed technique is robust to synthetic aperture length, scatterer elevation, and scatterer dimension in forward-looking scenarios. The technique may be used for various applications related to situational awareness, such as remote sensing for collision avoidance or forward-looking reconnaissance.
Matthew J. Burfeindt, Matthew J. Burfeindt,
"Interferometric enhancement for forward-looking synthetic aperture radar target imaging," Journal of Applied Remote Sensing 11(4), 045014 (14 December 2017). https://doi.org/10.1117/1.JRS.11.045014
. Submission: Received: 14 July 2017; Accepted: 28 November 2017
Received: 14 July 2017; Accepted: 28 November 2017; Published: 14 December 2017