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Wright State University

1. Compaleo, Jacob D. Impact of Near-field-to-far-field Transformation on SAR Images Formed in an Indoor Non-anechoic Environment.

Degree: MSEE, Electrical Engineering, 2018, Wright State University

This work investigates the impact of the near-field-to-far-field transformation (NFFFT) algorithm on phase history measurement collections completed in the Sensors and Signals Exploitation Laboratory (SSEL). SSEL is an indoor non-anechoic environ- ment that is at risk to some measurement interferences such as multiple bounces. Complete 360-degree phase history measurements of scale model aircraft are con- ducted at varying range values within the near-field limit. These measurements are calibrated with the Mie series scattering solution for a sphere. After calibration, the measurements are transformed using the NFFFT, with radar cross-section (RCS) estimated. RCS of the transformed data is compared with the RCS of the near-field calibrated, and also far-field calibrated data. Well-known imaging algorithms the polar format algorithm (PFA) and convolution back-projection algorithm are used to form SAR images of the targets. Agreement in RCS within 4 dBsm is shown be- tween the transformed data and far-field calibrated data, rather than the near-field calibrated data. The NFFFT algorithm is shown to be suitable for use in the SSEL measurement environment. Advisors/Committee Members: Saville, Michael (Advisor).

Subjects/Keywords: Electrical Engineering; NFFFT; SAR; Radar; near-field; far-field; non-anechoic; transform; PFA; imaging

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Compaleo, J. D. (2018). Impact of Near-field-to-far-field Transformation on SAR Images Formed in an Indoor Non-anechoic Environment. (Masters Thesis). Wright State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=wright1533206365760924

Chicago Manual of Style (16th Edition):

Compaleo, Jacob D. “Impact of Near-field-to-far-field Transformation on SAR Images Formed in an Indoor Non-anechoic Environment.” 2018. Masters Thesis, Wright State University. Accessed August 16, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1533206365760924.

MLA Handbook (7th Edition):

Compaleo, Jacob D. “Impact of Near-field-to-far-field Transformation on SAR Images Formed in an Indoor Non-anechoic Environment.” 2018. Web. 16 Aug 2018.

Vancouver:

Compaleo JD. Impact of Near-field-to-far-field Transformation on SAR Images Formed in an Indoor Non-anechoic Environment. [Internet] [Masters thesis]. Wright State University; 2018. [cited 2018 Aug 16]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1533206365760924.

Council of Science Editors:

Compaleo JD. Impact of Near-field-to-far-field Transformation on SAR Images Formed in an Indoor Non-anechoic Environment. [Masters Thesis]. Wright State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1533206365760924

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