A new approach to range-Doppler SAR processing
Abstract
This paper presents a general analysis of frequency-domain SAR processing based on the relationship between the phase of the two-dimensional Fourier transform of a point response to its range-time history. The paper demonstrates how this provides an appropriate basis for the design of a coherent strip-mode processor, free of geometric or phase distortion and artefacts, and without excessive computational cost. The relevance of the analysis to ambiguity estimation and the processing of very long-integration-time SAR data is indicated.
- Publication:
-
International Journal of Remote Sensing
- Pub Date:
- February 1991
- DOI:
- 10.1080/01431169108929650
- Bibcode:
- 1991IJRS...12..235S
- Keywords:
-
- Doppler Radar;
- Matched Filters;
- Synthetic Aperture Radar;
- Fir Filters;
- Fourier Transformation;
- Polynomials;
- Transfer Functions;
- Weighting Functions;
- Communications and Radar