DMC Calibration Klaus Neumann Product Manager DMC Camera
DMC Calibration Klaus Neumann Product Manager
DMC - Camera Head Production Ø Raw Die Ø Pan CCD Ø Lens assembly Ø Assemble Optics, Sensor & Electronics Ø Adjustment of CCD and Optics Ø Validation Ø Radiometric calibration Ø Geometric calibration Ø Calibrated Camera Heads Ø DMC Assembly Ø Certification - Burn In & Test Flight Ø Delivery Page 2
Zeiss Jena Clean Room Facilities Page 3
DMC Calibration - Overview Single Head Geometry Collimator Data Radiometry Ulbricht Sphere Interior Orientation Platform Adjusted, homogeneous pixel sensitivity Geometry Online Platform Radiometry DMCORI PRC Post Processing PPS S/W Component Initial EO for all 8 camera heads mosaicking geometric quality assessment homogeneous virtual image radiometry Color Balance Calibration CD Internal Calibration Data Page 4
Zeiss Jena Geometric Calibration § Designed for DMC § Rotationtable with 0. 3 mgon accuracy § Circular Targets § Fully automatic Page 5
Radiometry § Calibration with Ulbricht Sphere Page 6
DMC Environmental Tests RTCA / DO 160 E (= ISO 7137) EN 61000 -6 -2: 2001 Electromagnetic compatibility (EMC) Part 6 -4: Generic standards Section 2: Immunity for industrial environments Section 4: Emission standard for industrial environments Part 4: Testing and measurement techniques Section 2: Electrostatic discharge immunity test Section 5 : Surge immunity test EN 55011: 1998 Industrial, scientific and medical (ISM) radio-frequency equipment -Radio disturbance characteristics -Limits and methods of measurement Page 7
DMC Environmental Tests Vibration -Sinus: DO 160 E – Section 8 (Vibration) Figure 8 -3 Category M (5 -500 Hz) (Standard Sinusidal Vibration Test curves for equipment installed in fixed wing aircraft with reciprocating or turbo propeller engines) -Random: ISO 9022 -37 Category 21 (1, 4 g rms @ 20 -2000 Hz) Shock 15 g @ 11 ms according ISO 9022 -30 Category 01 Temperature -Temp-Burn In according own specification: Operating Temperature: 0 – 40°C T 1 = 30 min T 2 = 4 h T 3 = 30 min (In minimum 4 cycles) -Storage Temperature (according own specification): DMC Camera -20°C – 70°C (T 1 = 1 h T 2 = 48 h T 3 = 1 h) All other Equipment -40°C – 70°C (T 1 = 1 h T 2 = 48 h T 3 = 1 h) Pressure -Under pressure RTCA / DO 160 E – Section 4 (Temperature & Altitude) Category C 1 10700 m (guaranteed for customers only : 8000 m) T 0 – T 1: 30 min T 1–T 2: 0 T 2–T 3: 4 h Temperature 20°C Page 8
Factory Acceptance and Certification – Factory acceptance Test § 1 st images taken and processed § Test procedure includes GPS simulated flight – Test Flight § Full Mission -> Test field “Elchingen” § 500 m flying height – 5 cm GSD § 8 control points – AT is run to determine platform calibration Page 9
Standard DIN 18740 -4 Geometric Calibration Protocol § Geometric Calibration Protocol for each camera module or spectral channel § For mosaicked images the relative orientation of the cameras for each exposure § Alignment of the IMU to the focal plane Page 10
Thank you ! Noch Fragen ? Klaus Neumann Z/I - Earth Imaging Solution Center www. intergraph. com Page 11
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