Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals:
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| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Köln
DLR, Deutsches Zentrum für Luft- und Raumfahrt
2017
|
| Ausgabe: | Als Manuskript gedruckt |
| Schriftenreihe: | Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt
2017-08 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | xi, 141 Seiten Diagramme |
Internformat
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| 245 | 1 | 0 | |a Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals |c Giorgio Gomba |
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Datensatz im Suchindex
| _version_ | 1804177435814526978 |
|---|---|
| adam_text | Contents
Abstract iii
Zusammenfassung v
Contents ix
1 Introduction 1
1 1 Motivation 1
1 2 Scope 2
1 3 Thesis structure 2
2 Fundamentals and state of the art 5
l21 Ionosphere 5
211 Electron density temporal variations 6
(T 212 Electron density spatial variations 6
I213 Ionospheric effects on radio waves 9
{22 Ionospheric effects on SAR 13
|221 Range delay and phase advance 13
|222 Range impulse response 14
J: 223 Azimuth impulse response 15
S224 Faraday rotation 17
|225 Amplitude scintillation 18
|, 2 3 Ionospheric effects on InSAR 18
•i 231 Range delay and phase advance 20
J§ 232 Azimuth shift 21
2 4 Discussion 22
|| 2 5 Ionosphere correction methods 22
I251 Absolute ionosphere 23
r, 252 Differential ionosphere 23
§ 2 6 Conclusion and organization of the thesis 25
{ 3 The split-spectrum method 27
|j 3 1 The range split-spectrum method 27
C311 Split-spectrum method accuracy 28
§ 3 2 Implementation and systematic errors 29
321 Multilooking 29
1322 Filtering 30
1323 Phase unwrapping errors 31
CONTENTS
324 Asymmetrie split-spectrum mode 32
3 3 Application Examples 32
331 2008 Kyrgyzstan earthquake 33
332 Aurora borealis 34
333 2008 Wenchuan earthquake 34
334 Asymmetric split-spectrum mode 38
3 4 Conclusion 38
4 The split-spectrum method for TOPS and ScanSAR 41
4 1 Ionospheric effects on squinted acquisitions imaging 41
411 Azimuth shifts 42
4 2 Ionospheric effects on squinted acquisitions processing 43
421 Azimuth shift estimation 43
422 Azimuth shift resampling 44
423 Interferogram 44
4 3 Ionospheric phase screen compensation 45
431 Split-spectrum raw estimate 47
432 Ionospheric shift phase bias compensation 48
433 Ionospheric phase screen compensation 48
434 Burst overlap phase check 50
4 4 Full-aperture ScanSAR mode 50
441 Comparison with trend removal 51
4 5 Conclusion 51
5 Semi-focusing processing and integrated azimuth shifts 55
5 1 Method 55
5 2 Integrated azimuth shifts 57
5 3 Conclusion 59
6 Improved estimation by data combination 61
6 1 Bayesian data combination 61
611 Ionosphere model and a-priori information 62
6 2 Split-spectrum method and azimuth shifts combination 63
621 Forward problem 63
6 3 Application examples 65
631 Alaska aurora test case 65
632 Amazon scintillation test case 66
6 4 Conclusion 68
7 Validation 71
7 1 Validation with GNSS measurements 71
711 Comparison with global TEC maps 71
712 Comparison with local GPS measurements 73
8 Conclusion 75
Appendix A Gomba, G , Parizzi, A , De Zan, E, Eineder, M , and Bamler, R (2016) Toward
Operational Compensation of Ionospheric Effects in SAR Interferograms: The Split-
Spectrum Method IEEE Transactions on Geoscience and Remote Sensing, 54(3): 1446-
1461 77
Appendix B Gomba, G , Rodriguez Gonzalez, E, and De Zan, E (2017) Ionospheric Phase
Screen Compensation for the Sentinel-1 TOPS and ALOS-2 ScanSAR modes IEEE Trans-
actions on Geoscience and Remote Sensing 95
Appendix C Gomba, G and De Zan, E (2016, submitted) Bayesian Data Combination
for the Estimation of Ionospheric Effects in SAR Interferograms IEEE Transactions on
Geoscience and Remote Sensing 109
Appendix D Gomba, G , Eineder, M , Parizzi, A , and Bamler, R (2014) High-resolution
estimation of ionospheric phase screens through semi-focusing processing 2014 IEEE
International Geoscience and Remote Sensing Symposium (IGARSS) 123
Appendix E Gomba, G and De Zan, F (2015) Estimation of ionospheric height variations
during an aurora event using multiple semi-focusing levels 2015 IEEE International
Geoscience and Remote Sensing Symposium (IGARSS) 129
Bibliography
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| discipline | Geowissenschaften Bauingenieurwesen Elektrotechnik / Elektronik / Nachrichtentechnik Vermessungswesen Verkehr / Transport |
| edition | Als Manuskript gedruckt |
| format | Thesis Book |
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| spelling | Gomba, Giorgio Verfasser (DE-588)1130191044 aut Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals Giorgio Gomba Als Manuskript gedruckt Köln DLR, Deutsches Zentrum für Luft- und Raumfahrt 2017 xi, 141 Seiten Diagramme txt rdacontent n rdamedia nc rdacarrier Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt 2017-08 Dissertation Technische Universität München 2016 Wirkung (DE-588)4190021-2 gnd rswk-swf Funkortung (DE-588)4018904-1 gnd rswk-swf Synthetische Apertur (DE-588)4195782-9 gnd rswk-swf Kompensation (DE-588)4031980-5 gnd rswk-swf Ionosphäre (DE-588)4130409-3 gnd rswk-swf Radar (DE-588)4176765-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Ionosphäre (DE-588)4130409-3 s Funkortung (DE-588)4018904-1 s Synthetische Apertur (DE-588)4195782-9 s Wirkung (DE-588)4190021-2 s Kompensation (DE-588)4031980-5 s DE-604 Radar (DE-588)4176765-2 s Deutsches Zentrum für Luft- und Raumfahrt Forschungsbericht 2017-08 (DE-604)BV011758990 2017,08 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029664847&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Gomba, Giorgio Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals Wirkung (DE-588)4190021-2 gnd Funkortung (DE-588)4018904-1 gnd Synthetische Apertur (DE-588)4195782-9 gnd Kompensation (DE-588)4031980-5 gnd Ionosphäre (DE-588)4130409-3 gnd Radar (DE-588)4176765-2 gnd |
| subject_GND | (DE-588)4190021-2 (DE-588)4018904-1 (DE-588)4195782-9 (DE-588)4031980-5 (DE-588)4130409-3 (DE-588)4176765-2 (DE-588)4113937-9 |
| title | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals |
| title_auth | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals |
| title_exact_search | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals |
| title_full | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals Giorgio Gomba |
| title_fullStr | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals Giorgio Gomba |
| title_full_unstemmed | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals Giorgio Gomba |
| title_short | Estimation and compensation of ionospheric propagation delay in synthetic aperture radar (SAR) signals |
| title_sort | estimation and compensation of ionospheric propagation delay in synthetic aperture radar sar signals |
| topic | Wirkung (DE-588)4190021-2 gnd Funkortung (DE-588)4018904-1 gnd Synthetische Apertur (DE-588)4195782-9 gnd Kompensation (DE-588)4031980-5 gnd Ionosphäre (DE-588)4130409-3 gnd Radar (DE-588)4176765-2 gnd |
| topic_facet | Wirkung Funkortung Synthetische Apertur Kompensation Ionosphäre Radar Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029664847&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV011758990 |
| work_keys_str_mv | AT gombagiorgio estimationandcompensationofionosphericpropagationdelayinsyntheticapertureradarsarsignals |