Title :
Efficient SAR Raw Data Generation for Anisotropic Urban Scenes Based on Inverse Processing
Author :
Khwaja, Ahmed Shaharyar ; Ferro-Famil, Laurent ; Pottier, Eric
Author_Institution :
Inst. of Electron. & Telecommun. Rennes, Univ. of Rennes 1, Rennes, France
Abstract :
This letter describes efficient synthetic aperture radar raw data generation in the wavenumber domain using inverse processing. An exact form based on an inverse Omega-k algorithm and an approximate form based on an inverse Chirp Scaling algorithm are described, and examples are presented for a point scatterer. A methodology to incorporate the anisotropic behavior of an urban scene in a reflectivity map is also presented and demonstrated by means of a subaperture analysis.
Keywords :
geophysical techniques; remote sensing by radar; synthetic aperture radar; Chirp Scaling algorithm; Omega-k algorithm; SAR raw data generation; anisotropic urban scene; inverse processing; subaperture analysis; synthetic aperture radar; wavenumber domain; Inverse Chirp Scaling; inverse Omega-k; synthetic aperture radar (SAR) raw data generation;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2009.2024559
