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HEO-specific processing challenges for PCW system

HEO-specific processing challenges for PCW system. Major challenges. Accurate Image Navigation and Registration (INR) for two-satellite system on HEO orbit: Variable altitude, spatial resolution, size of imaging area;

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HEO-specific processing challenges for PCW system

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  1. HEO-specific processing challenges for PCW system

  2. Major challenges • Accurate Image Navigation and Registration (INR) for two-satellite system on HEO orbit: • Variable altitude, spatial resolution, size of imaging area; • Steerable spacecraft (due to COMMS operations), attitude knowledge and control; • GCP ( Ground Control Points) matching in polar region is a challenge due to surface properties (snow/ice) and low sun elevation; • Low sun and polar night conditions – impact on product quality • Scene ID, clouds vs snow/ice; • Atmospheric correction: aerosol, water vapor, radiative transfer modeling; • Temperature inversions; • Limited sources of in-situ and ground measurements for validation in the Arctic

  3. -4hrs Temporal Sequence of Earth Views from PCW -3hrs 0hrs 24.20 x 24.20 19.40 x 19.40 +3hrs +4hrs 15.80 x 15.80 Trishchenko and Garand, 2010, JTECH, submitted

  4. Variation of geometry during imaging Trishchenko and Garand, 2010, JTECH, submitted

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