Parametric Methods for Strip-Map SAR Doppler Ambiguity Resolution

@article{Dragosevic2009ParametricMF,
  title={Parametric Methods for Strip-Map SAR Doppler Ambiguity Resolution},
  author={Marina V. Dragosevic},
  journal={IEEE Transactions on Aerospace and Electronic Systems},
  year={2009},
  volume={45}
}
  • M. Dragosevic
  • Published 25 September 2009
  • Environmental Science
  • IEEE Transactions on Aerospace and Electronic Systems
Physical modeling of the Doppler centroid (DC) can be used to predict synthetic aperture radar (SAR) Doppler ambiguity when antenna attitude is controlled or measured precisely enough. It is shown that the same model proves useful even in the cases of higher attitude uncertainty, if it is combined with suitable adaptive techniques. In this paper, Doppler ambiguity resolution is formulated as a hypothesis testing problem over a domain of integer values that are directly related to the attitude… 
View on IEEE
doi.org
3 Citations
Background Citations
1
Methods Citations
2

Figures and Tables from this paper

3 Citations

New Approach for SAR Doppler Ambiguity Resolution in Compressed Range Time and Scaled Azimuth Time Domain

This approach is confirmed that this approach is robust to the partially exposed strong targets in azimuth, ground slowly moving targets and the motion variation of platform in realistic scenarios and can basically provide the right estimate in low-contrast scenes.

SAR Doppler Ambiguity Resolver Based on Entropy Minimization

A novel DAN estimation algorithm named image-quality-based Doppler ambiguity resolver is presented, which is more robust than conventional methods to cope with demands of both low- and high-contrast scene applications.

Robust Ground Moving-Target Imaging Using Deramp–Keystone Processing

An instantaneous-range-Doppler algorithm of GMTIm based on deramp-keystone processing is proposed, which focuses all the targets in the scene at an arbitrarily chosen azimuth time and shows that no interpolation is needed.

References

SHOWING 1-10 OF 22 REFERENCES

PRF-ambiguity resolving by wavelength diversity

A novel algorithm is proposed that works best with low contrast scenes, where the conventional look correlation technique fails, and needs no iterative processing of the SAR data and causes only low computational load.

A spatially selective approach to Doppler estimation for frame-based satellite SAR processing

  • I. Cumming
  • Environmental Science, Mathematics
    IEEE Transactions on Geoscience and Remote Sensing
  • 2004
A new method of Doppler centroid estimation is presented that takes advantage of principles such as spatial diversity, estimator quality checks, geometric models, and the fitting of a "global" estimate over a wide area of a SAR scene.

A combined SAR Doppler centroid estimation scheme based upon signal phase

The analysis of the two complementary Doppler estimation algorithms is presented, explaining why their performance is affected by scene contrast, which is confirmed by experimental results with ERS-1 and JERS-1 data.

Application of the multiple PRF technique to resolve Doppler centroid estimation ambiguity for spaceborne SAR

An algorithm employing simple integer arithmetic for radar systems, such as moving target indicator radar (MTIR) systems, where the PRFs contain a large common divisor, is formulated and an algorithm that uses PRFs of arbitrary numerical values is devised to resolve the ambiguity.

Physical Characterization and Comparison of Doppler and Attitude Estimates for ENVISAT/ASAR and RADARSAT-1

ENVISAT and RADARSAT-1 both carry multi-beam SAR sensors operating in C-band at similar radar frequencies from similar orbits. There are also important differences between the two systems: the ASAR…

RADARSAT attitude estimates based on Doppler centroid of satellite imagery

  • S. R. Marandi
  • Physics
    IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development
  • 1997
An algorithm is developed for computation of the expected Doppler shift in the returned SAR signal. The Doppler shift is a function of the attitude of the satellite, range time and the position of…

Total zero Doppler Steering-a new method for minimizing the Doppler centroid

This letter presents a new method, called total Zero Doppler steering, to perform yaw and pitch steering for spaceborne synthetic aperture radar (SAR) systems, which will optimize the overlap of the azimuth spectra of SAR image pairs for cross-track interferometry.

Doppler centroid estimation for ScanSAR data

We introduce a novel accurate technique to estimate the Doppler centroid (DC) in ScanSAR missions. The technique starts from the ambiguous DC measures in the subswaths and uses a method alternative…

Improved beat frequency estimation in the MLBF Doppler ambiguity resolver

  • Shu LiI. Cumming
  • Computer Science
    Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05.
  • 2005
An improved beat frequency estimation method is presented that uses frequency estimators based on phase increments of the beat signal that has a significantly better performance than the existing method of estimating the beat frequency.

ERS-2 SAR PERFORMANCE AND PRODUCT EVOLUTION

The European Space Agency (ESA) ERS-2 Synthetic Aperture Radar (SAR) has successfully operated for more than 12 years. The performance of the ERS-SAR is routinely assessed via a variety of quality…