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TOPS模式数据配准模型及其对相干性的影响研究

摘要第3-4页
ABSTRACT第4-5页
ACKNOWLEDGEMENTS第6-12页
1. INTROD UCTION第12-16页
    1.1. Motivations第13-14页
    1.2. Goal of this research第14页
    1.3. Report's outline第14-16页
2. BACKGROUND第16-29页
    2.1. RADAR第16-18页
        2.1.1. Radar imaging geometry第16-18页
    2.2. Synthetic Aperture Radar (SAR)第18-20页
        2.2.1. How does SAR work?第19-20页
        2.2.2. Complex SAR image第20页
    2.3. Interferometric Synthetic Aperture Radar (In-SAR)第20-25页
        2.3.1. How does In-SAR work?第21-23页
        2.3.2. How to generate an Interferogram?第23-25页
    2.4. Coherence第25页
    2.5. Mathematic approach第25-29页
        2.5.1. Signal and wave第26页
        2.5.2. Phase第26页
        2.5.3. Amplitude第26页
        2.5.4. Wavelength第26页
        2.5.5. Frequency第26页
        2.5.6. Cross correlation第26-27页
        2.5.7. Fourier Transformation(FT)and Discrete Fourier Transformation (DFT)第27-28页
        2.5.8. Doppler Effect第28页
        2.5.9. Time-Frequency diagram:第28-29页
3. TOPS GEOMETRY & DOPPLER-RELATED DISTORTIONS第29-36页
    3.1. ScanSAR geometry and its drawbacks第29-31页
    3.2. TOPS geometry第31-32页
    3.3. Time-frequency diagram of TOPS acquisition mode:第32-36页
4. TOPS COREGISTRATION MODELS第36-55页
    4.1. Standard coregistration approach (cross correlation or complex coherence):第36-41页
        4.1.1. Coarse registration第36-37页
        4.1.2. Fine registration第37-40页
        4.1.3. Workflow of standard coregistration approach第40-41页
    4.2. Geometric coregistration approach (using DEM and precise orbits parameters)第41-47页
        4.2.1. Analytical formulation of geometrical approach第42-46页
        4.2.2. Workflow of geometric approach第46-47页
    4.3. Enhanced Spectral Diversity approach (ESD)第47-52页
        4.3.1. Spectral Diversity (SD)第48-50页
        4.3.2. Enhanced Spectral Diversity (ESD)第50-52页
    4.4. New approach to improve ESD approach第52-55页
5. EXPERIMENTAL RESULTS第55-79页
    5.1. Data selection第55-57页
    5.2. Test site第57-58页
    5.3. Software tools第58页
    5.4. Results and discussions第58-79页
        5.4.1. Azimuth shift computation for Sentinel-1A data using different coregistration approaches第58-67页
        5.4.2. Range shift computation for Sentinel-1A data using different coregistration approaches第67-70页
        5.4.3. Impact of DEM and precise orbits parameters accuracies on the geometric coregistrationaccuracy第70-74页
        5.4.4. Proof of the coregistration accuracy threshold of Sentinel-1A IW data第74-76页
        5.4.5. The requirement of the amount overlap region (size) for ESD approach第76-77页
        5.4.6. Improvement of TOP mode coregistration using new approach第77-79页
6.CONCLUSION第79-82页
    6.1. Summary of outcomes第79-80页
    6.2. Study Limitations and Future Research第80-82页
REFERENCES第82-86页

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