PAZ Product Definition
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1 PAZ Product Definition CALVAL Centre Juan Manuel Cuerda Muñoz, Javier del Castillo Mena, Adolfo López Pescador, Nuria Gimeno Martínez, Nuria Casal Vázquez, Patricia Cifuentes Revenga, Marcos García Rodríguez, María José González Bonilla. 30/10/2015 Pag.: 1
2 OUTLINE PAZ Operational Concept Imaging Modes Product Tree L1B Format CALVAL In-Flight Test Plan Product Definition Plan Parameters identification Performance Assessment Test Approach Data Takes Plan Reflector Deployment Workflow Development L1B Product Analysis Tool Test results 30/10/2015 Pag.: 2
3 PAZ INSTRUMENT Dual System: Commercial / scientific SAR system Security and defence / civil users Main Applications: Security/defence, marine, land use, hydrology, pollution, natural hazards, science, etc. SAR System Parameters Incidence angle range for Stripmap/ ScanSAR / Spotlight Antenna length Nominal antenna look direction Antenna width 20º-45º (full performance) 15º-60º (accessible) 4.8 m right 0.7 m Attitude and Orbit Parameters Number of Stripmap/ScanSAR/SpotLight elevation beams up to 256 Nominal height at equator: 514 km Number of spotlight azimuth beams up to 256 Orbits per day /11 Nominal radar duty cycle 13% - 18% Polarization PRF Range Bandwidth Radar carrier frequency Radiated RF power H/V Single, Dual Hz 100/150/300 MHz 9.65 GHz 2 KW Inclination 97.4º LTAN Total zero Doppler steering 18:00 ± 0.25 h (local time) Yes 3
4 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- STRIPMAP PSP Raw Product Data Provided by Raw DLR-TSX Data Provided by DLR- TSX INTA GERMANY Stripmap Single Pag.: 4
5 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- STRIPMAP - Basic SAR imaging mode - Elevation and Azimuth beams fixed during the data take. Raw Data Provided by DLR-TSX SSC MGD SE RE GEC SE RE Polarization Scene Size (Azimuth x Range) [km] Slant Range Resolution [m] Azimuth Resolution [m] Single 50 x HH VV Polarization Channels Dual 50 x HHVV HHHV VVVH EEC SE RE Pag.: 5
6 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- SCANSAR PSP Product INTA Raw Data Provided by DLR- TSX ARTIC ScanSAR Single EEC-RE Pag.: 6
7 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- SCANSAR - Imaging mode oriented to increase ground swath reducing resolution - Elevation beam steering used to cover swathes with different elevation angles that are processed as a single image Raw Data Provided by MGD RE GEC RE DLR-TSX Polarization Scene Size (Azimuth x Range) [km] Slant Range Resolution [m] Azimuth Resolution [m] Single 150 x HH VV Polarization Channels EEC RE Pag.: 7
8 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- SPOTLIGHT PSP Product INTA Raw Data Provided by DLR-TSX Raw Data Provided by PSP Product INTA Raw Data Provided by DLR-TSX DLR-TSX ALGECIRAS Spotlight Single GEC-RE NEUSTRELITZ Spotlight Dual SSC Pag.: 8
9 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- SPOTLIGHT - Imaging mode oriented to increase azimuth resolution decreasing scene size. - Azimuth Beam Steering is used to increase illumitation time over swath. Raw Data Provided by SSC MGD SE RE DLR-TSX Polarization Scene Size (Azimuth x Range) [km] Slant Range Resolution [m] Azimuth Resolution [m] Single 10 x HH VV Polarization Channels Dual 10 x HHVV GEC SE RE EEC SE RE Pag.: 9
10 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- HIGH RESOLUTION SPOTLIGHT PSP Product INTA Raw Data Provided by DLR-TSX PSP Product INTA Raw Data Provided by DLR-TSX Raw Data Provided by DLR-TSX BARAJAS High Resolution Single SSC Size: 5 x 10 km GOERZIG High Resolution Dual EEC-RE Size: 5 x 10 km Pag.: 10
11 OPERATIONAL CONCEPT. IMAGING MODES PDS -PSP- Raw Data Provided by HIGH RESOLUTION SPOTLIGHT - Imaging mode oriented to increase azimuth resolution decreasing scene size. - Azimuth Beam Steering is used to increase illumitation time over swath. SSC MGD SE RE DLR-TSX Polarization Scene Size (Azimuth x Range) [km] Slant Range Resolution [m] Azimuth Resolution [m] Single 5 x HH VV Polarization Channels Dual 5x HHVV GEC SE RE EEC SE RE Pag.: 11
12 OPERATIONAL CONCEPT. PRODUCT TREE Level-0 Products Instrument source packets and annotations L1B Products Complex SSC: Single look Slant range Complex representation Detected MGD: Multilook Ground range Detected representation RE Radiometrically Enhanced SE Spatially Enhanced GEC: Geocoded Ellipsoid Corrected RE Radiometrically Enhanced SE Spatially Enhanced EEC: Enhanced Ellipsoid Corrected RE Radiometrically Enhanced SE Spatially Enhanced 30/10/2015 Pag.: 12
13 L1B FORMAT ANNOTATION PAZ SAR Processor (PSP) is a DLR development for PAZ PAZ L1B product format compliant with TSX and TDX AUXRASTER IMAGEDATA PREVIEW SUPPORT 13
14 CALVAL IN-FLIGHT TEST PLAN Plan development Pre - launch checkpoint Launch In - Flight Tests First System Validation Product Definition Data Takes Plan E 2 E Configuration SAR System Operation Requirements Verification Product Specification Deployment Plan Characterization Calibration Status Conditioning and Characterization Reflector Orientation Plan Performance Assessment Internal Calibration Test Procedures Product Definition External Calibration Tests Plan Risks Analysis 10/30/2015 Pag.: 14
15 Product Definition Product definition parameters identified Product Assessment Test defined All data takes Corner Reflectors data takes Distributed Targets data takes Data extraction for measurements External Calibration measurements Product annotations Data Analysis Tool 30/10/2015 Pag.: 15
16 PRODUCT DEFINITION PARAMETERS IDENTIFIED IRF Analysis Azimuth Resolution Slant Range Resolution PSLR ISLR Point Target Dynamic Range Phase Stability Radiometric Analysis Radiometric Resolution Equivalent Number Of Looks Radiometric Stability Absolute Radiometric Accuracy Relative Radiometric Accuracy NESZ Distributed Target Dynamic Range Geometric Analysis Ground Range Resolution Range Pixel Spacing Azimuth Pixel Spacing Pixel Location Accuracy Product Coverage Location Accuracy Instrument Specification Data Collection Angle Rate Full Performance Angle Rate Minimum Swath Overlap 30/10/2015 Pag.: 16
17 PERFORMANCE ASSESSMENT Complete SAR system performances: Instrument + SAR configuration Ground Segment developed under the assumption Space Segment is recurrent from TerraSAR-X. Instrument Commanding, PAZ SAR Processor, CALVAL AMT acquired from DLR E2e configuration coherent to Instrument Commanding and PAZ SAR Processor Specific assessments carried out over CALVAL Reference Antenna Model Patterns. 30/10/2015 Pag.: 17
18 STRIPMAP MODE SM-S Reference Value SM-D Reference Value SSC Detected SSC Detected SE RE SE RE Ambiguity Ratio ISLR PSLR NESZ Absolute Radiometric Accuracy Relative Radiometric Accuracy Radiometric Stability Slant Range Resolution Ground Range Resolution Azimuth Resolution Range Pixel Spacing Azimuth Pixel Spacing Pixel Localization Accuracy Radiometric Resolution Equivalent Number Of Looks /10/2015 Pag.: 18
19 SPOTLIGHT MODE SL-S Reference Value SL-D Reference Value SSC Detected SSC Detected SE RE SE RE Ambiguity Ratio ISLR PSLR NESZ Absolute Radiometric Accuracy Relative Radiometric Accuracy Radiometric Stability Slant Range Resolution Ground Range Resolution Azimuth Resolution Range Pixel Spacing Azimuth Pixel Spacing Pixel Localization Accuracy Radiometric Resolution Equivalent Number Of Looks /10/2015 Pag.: 19
20 HIGH RESOLUTION SPOTLIGHT MODE HS-S Reference Value HS-D Reference Value SSC Detected SSC Detected SE RE SE RE Ambiguity Ratio ISLR PSLR NESZ Absolute Radiometric Accuracy Relative Radiometric Accuracy Radiometric Stability Slant Range Resolution Ground Range Resolution Azimuth Resolution Range Pixel Spacing Azimuth Pixel Spacing Pixel Localization Accuracy Radiometric Resolution Equivalent Number Of Looks /10/2015 Pag.: 20
21 SCANSAR MODE SC Reference Value SSC Detected RE Ambiguity Ratio -17 ISLR -18 PSLR -25 NESZ -19 Absolute Radiometric Accuracy 1.5 Relative Radiometric Accuracy 0.50 Radiometric Stability 0.50 Slant Range Resolution 1.2 Ground Range Resolution Azimuth Resolution Range Pixel Spacing Azimuth Pixel Spacing Pixel Localization Accuracy 8.5 Radiometric Resolution Equivalent Number Of Looks /10/2015 Pag.: 21
22 PRODUCT DEFINITION APPROACH Abs. and Relative Radiometric Accuracy Calibration Radiometric Geometric Cal. Factor vs. Swath Pos Cal. Factor vs. Beam_Id Abs. Cal. Factor vs. Beam_Id Abs. Cal. Factor vs. Swath Position Point Target Definition Point Target Analysis and Geometric Correction Geometric Calibration Absolute Calibration Factor Calculation L1B Product Tables Generation Distributed Target Analysis Image Analysis Workspace Generation Distributed Target Definition Internal Delay Azimuth Shift Absolute Calibration Factor Geometric Calibration Polarimetric Calibration Test Procedures Calibration Test Cases Image Quality and Product Definition Features Under Test RQ-3512 PSLR RQ-3514 ISLR RQ-3516 RASR RQ-3517 AASR RQ-3518 DTAR RQ-3519 NESZ RQ-3510 Resolution Product Spec. System Reqs Acceptation System Requirements Acceptation Measurements Assessment Basic Product Specification Abs. and Rel. Rad.Accuracy Slant Range Resolution Azimuth Resolution PSLR Relative Rad. Accuracy NESZ Abs. Rad. Accuracy Pixel Spacing Localization Accuracy Radiometric Resolution ISLR RQ-3522 Swath / Scene Size RQ-3524 Minimum Swath Overlap RQ-3540 Radiometric Stability RQ-3542 Coverage Location Accuracy Point Target Dynamic Range Distributed Target Dynamic Range RQ-3542 Absolute Radiometric Accuracy RQ-3544 Relative Radiometric Accuracy RQ-3545 Radiometric Resolution RQ-3546 ENL RQ-3547 Approx. Range Pixel Spacing RQ-3547 Approx. Azimuth Pixel Spacing RQ-3520 Pixel Location Accuracy RQ-3500 L1B Product 30/10/2015 Pag.: 22
23 DATA TAKES PLAN 30/10/2015 Pag.: 23
24 DATA TAKES PLAN 13 DTS OVER CORNER REFLECTOR PER CYCLE 30/10/2015 Pag.: 24
25 ANALYSIS WORKFLOW <query> CR products By ingestiontime L1B PRODUCTS LIST DTID LTDB <create_workspace> CALIBRATION POINT TARGETS FILES L1B Products <copy> L1B PRODUCTS <query> xcal params xcal file LTDB xcal params 30/10/2015 Pag.: 25
26 L1B ANALYSIS TOOL 30/10/2015 Pag.: 26
27 L1B ANALYSIS TOOL 30/10/2015 Pag.: 27
28 TDX-PAZGS TDS ANALYSIS 30/10/2015 Pag.: 28
29 30/10/2015 Pag.: 29
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