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DMC Calibration

DMC Calibration. Klaus Neumann Product Manager. Pan CCD. Lens assembly Assemble Optics, Sensor & Electronics. Adjustment of CCD and Optics. Validation. Radiometric calibration Geometric calibration Calibrated Camera Heads. Certification - Burn In & Test Flight.

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DMC Calibration

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  1. DMC Calibration Klaus Neumann Product Manager

  2. Pan CCD • Lens assembly • Assemble Optics, Sensor & Electronics • Adjustment of CCD and Optics • Validation • Radiometric calibration • Geometric calibration • Calibrated Camera Heads • Certification - Burn In & Test Flight DMC - Camera Head Production • Raw Die • DMC Assembly • Delivery

  3. Zeiss Jena Clean Room Facilities

  4. DMC Calibration - Overview Single Head Platform Geometry Radiometry Geometry Online Platform Radiometry Collimator Ulbricht Sphere DMC Post Processing DMCORI PPS S/W Component PRC PPS S/W Component Interior Orientation Data Adjusted, homogeneous pixel sensitivity Color Balance Initial EO for all 8 camera heads mosaicking geometric quality assessment homogeneous virtual image radiometry Calibration CD Internal Calibration Data

  5. Geometric Calibration • Designed for DMC • Rotationtable with 0.3 mgon accuracy • Circular Targets • Fully automatic Zeiss Jena

  6. Radiometry • Calibration with Ulbricht Sphere

  7. DMC Environmental Tests RTCA / DO 160 E (= ISO 7137) EN 61000-6-2:2001Electromagnetic 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 EN55011:1998 Industrial, scientific and medical (ISM) radio-frequency equipment -Radio disturbance characteristics -Limits and methods of measurement

  8. 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 @ 11ms according ISO 9022-30 Category 01 Temperature -Temp-Burn In according own specification: Operating Temperature: 0 – 40°C T1 = 30min T2 = 4h T3 = 30min (In minimum 4 cycles) -Storage Temperature (according own specification):DMC Camera -20°C – 70°C (T1 = 1h T2 = 48h T3 = 1h)All other Equipment -40°C – 70°C (T1 = 1h T2 = 48h T3 = 1h) Pressure -Under pressure RTCA / DO 160 E – Section 4 (Temperature & Altitude)Category C1 10700 m (guaranteed for customers only : 8000m) T0 – T1: 30min T1–T2: 0 T2–T3: 4h Temperature 20°C

  9. Factory Acceptance and Certification • Factory acceptance Test • 1st images taken and processed • Test procedure includes GPS simulated flight • Test Flight • Full Mission -> Test field “Elchingen” • 500m flying height • 5cm GSD • 8 control points • AT is run to determine platform calibration

  10.  Standard DIN 18740-4Geometric 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 

  11. Noch Fragen ? Klaus Neumann Z/I - Earth Imaging Solution Center www.intergraph.com Thank you !

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