Point Target Localization and Imaging with Plane Wave using SAR

Majlesi Journal of Telecommunication Devices

مقاله 6، دوره 5، شماره 3، دی 2016   

نوع مقاله: Articles

نویسندگان

Hajar Abedi^* ؛ Bijan Zakeri

چکیده

In this work a plane wave is used to localize a point target and in addition to speeding up the imaging scenario rather than moving the antenna to synthesize the long aperture as done in conventional SAR instead of moving the antenna to synthetize the long aperture a single plane wave transmitter and a linear passive antenna array for the receiver are used. Single plane wave transmitter in far field is considered as an abundance of narrow beam width along a line parallel to the target. Transmitter antenna illuminates the target in all positions directions that the radar used to move in SAR technique. The Linear array is put in a closer distance to the target and collects the back scattered field coherently in a several positions. This collection will be considered as a strip map SAR mode. The proposed technique is implicitly the same as SAR technique. The SAR standard imaging image processing, back projection algorithm is used to construct the image. Since the proposed technique transmits a plane wave for a single time and the linear array collects data in all positions simultaneously, the speed of this technique is considerably more than the conventional SAR

کلیدواژه‌ها

Synthetic Aperture Radar؛ en؛ Plane wave؛ imaging؛ linear array؛ Localization؛ image processing؛ back projection algorithm

مراجع

[1] John, C. Curlander, 1991.System Aperture Radar: System and Signal Processing. Wiley Series in Remote Sensing Publisher Name, Address.

[2] B., Bernhard Rabus, Hans Wehn, and Matt Nolan, 1994. “The Importance of Soil Moisture and Soil Structure for InSAR Phase and Backscatter, as Determined by FDTD Modeling”. IEEE transactions on geoscience and remote sensing, vol. 48, no. 5, may 2010

[3] Biying Lu, Qian Song, Zhimin Zhou, and Xiang Zhang “Detection of Human Beings in Motion Behind the Wall Using SAR Interferogram ”. IEEE geoscience and remote sensing letters, vol. 9, no. 5, september 2012

[4] Mojtaba Dehmollaia,Michael Thiel and Kamal Sarabandi, “Through-the-Wall Imaging Using Differential SAR”. IEEE transactions on geoscience and remote sensing, vol. 47, no. 5, may 2009

[5] Mojtaba Dehmollaian and Kamal Sarabandi, “Refocusing Through Building Walls Using Synthetic Aperture Radar”. IEEE transactions on geoscience and remote sensing, vol. 46, no. 6, june 2008

[6] Wenji Zhang and Ahmad Hoorfar, “Three-Dimensional Synthetic Aperture Radar Imaging Through Multilayered Walls”. IEEE transactions on antennas and propagation, vol. 62, no. 1, january 2014.

[7] W. Zhang, A. Hoorfar, C. Thajudeen, and F. Ahmad, “Full polarimetric beam-forming algorithm for through-the-wall radar imaging,” Radio Sci., vol. 46, 2011, RS0E16, doi:10.1029/2010RS004631.

[8] Jofre, L., A. Broquetas, J. Romeu, S. Blanch, A. Toda, X. Fabregas, and A. Cardama (2009), UWB tomographic radar imaging of penetrable and impenetrable objects, Proc. IEEE, 97, 451–464, doi:10.1109/JPROC.2008.2008854.