Squint LFMCW SAR Data Processing Using Doppler-Centroid-Dependent Frequency Scaling Algorithm

• Published in: IEEE transactions on geoscience and remote sensing Vol. 46; no. 11; pp. 3535 - 3543
• Main Authors: JIANG, Zhi-Hong, HUANG-FU, Kan
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.11.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Applied geophysics; Bandwidth; Computer simulation; Data processing; Degradation; Doppler centroid; Earth sciences; Earth, ocean, space; Exact sciences and technology; Frequency; frequency scaling algorithm; Image quality; Internal geophysics; linear frequency-modulated continuous-wave (LFMCW) radar; Migration; Nonlinearity; Radar imaging; Radar remote sensing; Sampling methods; Signal processing algorithms; Synthetic aperture radar; synthetic aperture radar (SAR); Unmanned aerial vehicles; waves; algorithms; extension; simulation; data processing; frequency scaling algorithm; remote sensing; frequency; Doppler centroid; image quality; linear frequency-modulated continuous-wave (LFMCW) radar; corrections; synthetic aperture radar (SAR); migration; Synthetic aperture radar

A linear frequency-modulated continuous-wave (LFMCW) synthetic aperture radar (SAR) is a highly miniaturized SAR that is suitable for use on a small unmanned aerial vehicle. In squint stripmap mode, the LFMCW SAR image quality is degraded by the presence of nonlinearities in the transmitted signal,...