Abstract
On-orbit optical sensors are the primary data source for the remote sensing community. A rigorous pre-flight characterization and calibration is a key to the success of their mission. Indeed, preliminary calibration and correction factors are determined during this process. As part of this process, prior to the launch of NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) its polarization sensitivity was measured. In this work, our goal was to simulate these measurements using computer ray tracing software. Based on that, we could evaluate the evolution of the different coatings (Mirror, Beam splitters, Anti-reflection and Band pass filters) due to degradation over time. We were able to simulate the measurements and obtained what the theoretical polarization sensitivity should be. The results were compared to the pre-launch measurements and an analysis of the whole MODIS optical system was performed in order to explain these differences. A full description of the MODIS polarization ray tracing procedure along with a discussion on the results and their implications on past, present and future work will be given.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | J.A. Shaw, J.S. Tyo |
| Pages | 1-8 |
| Number of pages | 8 |
| Volume | 5888 |
| DOIs | |
| State | Published - 2005 |
| Event | Polarization Science and Remote Sensing II - San Diego, CA, United States Duration: Aug 2 2005 → Aug 4 2005 |
Other
| Other | Polarization Science and Remote Sensing II |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 8/2/05 → 8/4/05 |
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Keywords
- Aqua
- Code
- MODIS
- Polarization
- Ray tracing
- Terra
- ZEMAX
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
MODIS polarization ray tracing analysis. / Souaidia, N.; Moyer, D.; Meister, G.; Pellicori, S.; Waluschka, E.; Voss, Kenneth.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / J.A. Shaw; J.S. Tyo. Vol. 5888 2005. p. 1-8 58880H.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - MODIS polarization ray tracing analysis
AU - Souaidia, N.
AU - Moyer, D.
AU - Meister, G.
AU - Pellicori, S.
AU - Waluschka, E.
AU - Voss, Kenneth
PY - 2005
Y1 - 2005
N2 - On-orbit optical sensors are the primary data source for the remote sensing community. A rigorous pre-flight characterization and calibration is a key to the success of their mission. Indeed, preliminary calibration and correction factors are determined during this process. As part of this process, prior to the launch of NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) its polarization sensitivity was measured. In this work, our goal was to simulate these measurements using computer ray tracing software. Based on that, we could evaluate the evolution of the different coatings (Mirror, Beam splitters, Anti-reflection and Band pass filters) due to degradation over time. We were able to simulate the measurements and obtained what the theoretical polarization sensitivity should be. The results were compared to the pre-launch measurements and an analysis of the whole MODIS optical system was performed in order to explain these differences. A full description of the MODIS polarization ray tracing procedure along with a discussion on the results and their implications on past, present and future work will be given.
AB - On-orbit optical sensors are the primary data source for the remote sensing community. A rigorous pre-flight characterization and calibration is a key to the success of their mission. Indeed, preliminary calibration and correction factors are determined during this process. As part of this process, prior to the launch of NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) its polarization sensitivity was measured. In this work, our goal was to simulate these measurements using computer ray tracing software. Based on that, we could evaluate the evolution of the different coatings (Mirror, Beam splitters, Anti-reflection and Band pass filters) due to degradation over time. We were able to simulate the measurements and obtained what the theoretical polarization sensitivity should be. The results were compared to the pre-launch measurements and an analysis of the whole MODIS optical system was performed in order to explain these differences. A full description of the MODIS polarization ray tracing procedure along with a discussion on the results and their implications on past, present and future work will be given.
KW - Aqua
KW - Code
KW - MODIS
KW - Polarization
KW - Ray tracing
KW - Terra
KW - ZEMAX
UR - http://www.scopus.com/inward/record.url?scp=29244473856&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=29244473856&partnerID=8YFLogxK
U2 - 10.1117/12.617635
DO - 10.1117/12.617635
M3 - Conference contribution
AN - SCOPUS:29244473856
VL - 5888
SP - 1
EP - 8
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Shaw, J.A.
A2 - Tyo, J.S.
ER -