A Consideration of Signal Processing for Spotlight Synthetic Aperture Radar (Ambiguity Functions)

An analysis of spotlight mode synthetic aperture radar (SAR) imaging was carried out using a model based solely on the recognizable similarity it shares with tomographic reconstruction. Doppler effects were relegated to a pre-processing step. Results of this investigation included a determination of the importance of: (1) rectangular versus polar formatting of data for imaging, (2) limited time-bandwidth of chirp signals if stretch processing is employed, (3) residual Doppler effects, and (4) spherical wavefront curvature. Furthermore, the applicability of the convolution back-projection algorithm for imaging spotlight SAR data was established.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• O'brien, James Dennis

• Engineering, Electronics and Electrical

Identifier

(UMI)AAI8409821

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/69268