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The Cygnss Coherent End-to-End Simulator: Development and Results
Abstract
The CYclone Global Navigation Satellite System (CYGNSS) End-to-End Simulator (E2ES) is updated with a new module capable of accurately simulating coherent forward scattering from inland water bodies. This module uses a Global Navigation Satellite Systems Reflectometry (GNSS-R) model that can account for both coherent and incoherent scattering due to small scale surface roughness. The model is developed based on the Huygens-Kirchhoff principle. One principle application is to support the development of wetland extent retrieval algorithms over heterogenous scenes. In this abstract, a water mask corresponding to a lake surrounded by mountains and vegetation is considered. A modeled time series of reflected power is generated and results are compared to actual CYGNSS raw IF data. The final goal is to support scientific studies related to the capabilities of CYGNSS for inland water body monitoring.
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The coherent scattering model is based on the Huygens-Kirchhoff principle, a statistical model for coherently reflected signals from an irregular surface.
“The coherent scattering model is based on the Huygens-Kirchhoff principle, which is a statistical model for coherently reflected signals from an irregular surface [23].”
From Characterization of River Width Measurement Capability by Space Borne GNSS-Reflectometry (2024) · cites this paper as [23]
The ability of the E2ES to properly simulate the behavior of CYGNSS observations in mixed coherent+incoherent conditions was demonstrated in [23] by a comparison between observed and simulated measurements of a CYGNSS track that crossed directly over a large lake (Lake Ilopango in El Salvador).
“The ability of the E2ES to properly simulate the behavior of CYGNSS observations in mixed coherent+incoherent conditions was demonstrated in [23] by a comparison between observed and simulated measurements of a CYGNSS track that crossed directly over a large lake (Lake Ilopango in El Salvador).”
From Characterization of River Width Measurement Capability by Space Borne GNSS-Reflectometry (2024) · cites this paper as [23]
The standard deviation of the noise added to simulated SNR is estimated using a SP track over Lake Ilopango that was used for an E2ES validation study in [23].
“The standard deviation of the noise is estimated using a SP track over Lake Ilopango that was used for an E2ES validation study in [23].”
From Characterization of River Width Measurement Capability by Space Borne GNSS-Reflectometry (2024) · cites this paper as [23]
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Research works printed but not linked: 13
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- 10.1109/IGARSS.2016.7730256 · DOI
- 10.1109/LGRS.2019.2916164 · DOI
- 10.1109/IGARSS39084.2020.9324404 · DOI
- martin-neira, 1993, A Passive Reflectometry and Interferometry System (PARIS): Application to Ocean Altimetry, ESA J, 17, 331
- carreno-luengo, 2021, The CYGNSS Mission: On-Going Science Team Investigations, Remote Sens mdpi, 13, 1814, 10.3390/rs13091814 · DOI
- carreno-luengo, 2020, Above-Ground Biomass Retrieval over Tropical Forests: a Novel GNSS-R Approach with CYGNSS, Remote Sens mdpi, 12, 1368, 10.3390/rs12091368 · DOI
- 10.1109/36.981349 · DOI
- 10.3390/rs11202450 · DOI · Paper page
- chew, 2017, CYGNSS Data Map Flood Inundation During the 2017 Atlantic Hurricane Season, Scientific Reports, 8, 1
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Cited by
Sorted by citations
Characterization of River Width Measurement Capability by Space Borne GNSS-Reflectometry
Warnock, A., Ruf, C. S., & Knoll, A. L. (2024) · Remote Sensing · doi:10.3390/rs16081446 · Cited by 4
Self-citation
Metadata
- Authors
- Carreno-Luengo, H., Warnock, A., & Ruf, C. S.
- Affiliations
- University of Michigan (UMich),Climate and Space Sciences and Engineering Department
- SRI International Ann Arbor, MI, United States of America (USA)
- Venue
- IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
- Publisher
- IEEE
- Published
- 2022-07-17
- Pages
- 7441-7444
- Cited by
- 5
- References
- 0
- Funders
- University of Michigan
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