Practical synthetic aperture radar image formation based on realistic spaceborne synthetic aperture radar modeling and simulation

@article{Shim2013PracticalSA,
  title={Practical synthetic aperture radar image formation based on realistic spaceborne synthetic aperture radar modeling and simulation},
  author={Sang-Heun Shim and Yong Man Ro},
  journal={Journal of Applied Remote Sensing},
  year={2013},
  volume={7}
}
Abstract This paper presents the practical spaceborne synthetic aperture radar (SAR) data focusing method based on the realistic end-to-end spaceborne SAR simulation. Our simulation reflects main factors of the satellite SAR that induce errors to degrade the focused image severely, which are related to the sensor hardware, the antenna beam pointing, the effective velocity, and the Doppler frequency. To minimize errors due to them in the spaceborne SAR image formation, we suggest and utilize the… 
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3 Citations

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References

SHOWING 1-10 OF 31 REFERENCES

Precise spaceborne SAR image formation technique based on the analysis of critical errors using the spaceborne SAR simulator

Proposed methods are able to reduce error effects as well as improve the focused SAR image quality greatly and the phase gradient algorithm (PGA) to compensate phase distortion induced by antenna beam pointing errors.

Efficient Stripmap-Mode SAR Raw Data Simulation Including Platform Angular Deviations

This letter proposes a frequency-domain stripmap-mode raw data generator of an extended scene, taking into consideration the platform angular deviations, and generated raw data are validated, and the corresponding radiometric degradation is analyzed.

SARAS: a synthetic aperture radar (SAR) raw signal simulator

An SAR simulator of an extended three-dimensional scene is presented. It is based on a facet model for the scene, asymptotic evaluation of SAR unit response, and a two-dimensional fast Fourier…

Extended chirp scaling algorithm for air- and spaceborne SAR data processing in stripmap and ScanSAR imaging modes

A generalized formulation of the extended chirp scaling (ECS) approach for high precision processing of air- and spaceborne SAR data is presented, which incorporates a new azimuth scaling function and a subaperture approach, which allow an effective phase-preserving processing of ScanSAR data without interpolation for Azimuth geometric correction.

A two-level simulator for spaceborne SAR

A novel two-level simulator for spaceborne Synthetic Aperture Radar (SAR) is presented in this paper, and this simulator consists of two different simulation levels: the raw signal level and the…

Precision SAR processing using chirp scaling

Based on quantitative comparison, the chirp scaling algorithm provides image quality equal to or better than the precision range/Doppler processor, as defined by the system bandwidth.

Understanding the Significance of Radiometric Calibration for SAR Imagery: A Radar Equation Perspective

SAR is a remote sensor of choice for applications such as target detection and target recognition. In such applications, quantitative use of the information present in the SAR image is pivotal to…

ERS-1 SAR calibration studies: preparation for RADARSAT

Calibration studies are being conducted at the Canada Centre for Remote Sensing (CCRS) in preparation for RADARSAT using data obtained from the ERS-1 SAR system. SAR data of the Ottawa region…

TerraSAR-X technologies and first results

The ground station's multimode SAR processor is supported by a novel satellite steering law to reduce the attitude-dependent mean Doppler shift.

Synthetic Aperture Radar: Systems and Signal Processing

The Radar Equation, The Matched Filter and Pulse Compression, and Other Imaging Algorithms: Imaging and the Rectangular Algorithm.