Efficient Stripmap SAR Raw Data Generation Taking Into Account Sensor Trajectory Deviations

In this letter, a simulation procedure for airborne stripmap synthetic aperture radar with zero squint angle is proposed. The procedure is based on the idea of inverse processing and 1-D summation. It utilizes narrow bandwidth approximation and is more efficient compared to a time-domain simulator. Moreover, it allows for the simulation of raw data for higher aperture angle configurations compared to existing approaches. The effectiveness of the approach is demonstrated by means of examples for point scatterers.

[1]  N. Hamano,et al.  Digital processing of synthetic aperture radar data , 1984 .

[2]  Giorgio Franceschetti,et al.  SARAS: a synthetic aperture radar (SAR) raw signal simulator , 1992, IEEE Trans. Geosci. Remote. Sens..

[3]  Riccardo Lanari,et al.  Synthetic Aperture Radar Processing , 1999 .

[4]  Mehrdad Soumekh,et al.  Synthetic Aperture Radar Signal Processing with MATLAB Algorithms , 1999 .

[5]  Laurent Ferro-Famil,et al.  Efficient SAR Raw Data Generation for Anisotropic Urban Scenes Based on Inverse Processing , 2009, IEEE Geoscience and Remote Sensing Letters.

[6]  Marijke Vandewal,et al.  Efficient SAR Raw Data Generation Including Low Squint Angles and Platform Instabilities , 2008, IEEE Geoscience and Remote Sensing Letters.

[7]  Lorenzo Bruzzone,et al.  Radar Imaging Simulation for Urban Structures , 2011, IEEE Geoscience and Remote Sensing Letters.

[8]  R. Keith Raney,et al.  Precision SAR processing using chirp scaling , 1994, IEEE Trans. Geosci. Remote. Sens..

[9]  Knut Eldhuset,et al.  High resolution spaceborne INSAR simulation with extended scenes , 2005 .

[10]  Giorgio Franceschetti,et al.  Efficient simulation of airborne SAR raw data of extended scenes , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[11]  N. Bleistein,et al.  Asymptotic Expansions of Integrals , 1975 .

[12]  Ya-Qiu Jin,et al.  Imaging Simulation of Polarimetric SAR for a Comprehensive Terrain Scene Using the Mapping and Projection Algorithm , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[13]  Helmut Süß,et al.  Efficient and Precise Processing for Squinted Spotlight SAR through a Modified Stolt Mapping , 2007, EURASIP Journal on Advances in Signal Processing.

[14]  Alberto Moreira,et al.  Extended wavenumber-domain synthetic aperture radar focusing with integrated motion compensation , 2006 .

[15]  F. Rocca,et al.  SAR data focusing using seismic migration techniques , 1991 .

[16]  D. Cook.  Spotlight Synthetic Aperture Radar , 2012 .

[17]  Søren Nørvang Madsen,et al.  Motion compensation for ultra wide band SAR , 2001, IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217).

[18]  G. Fornaro.  Trajectory deviations in airborne SAR: analysis and compensation , 1999 .