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Analysis of Onboard Verification Flight Test for the Salinity Satellite Scatterometer
Yongqing Liu1,2, Te Wang1, Risheng Yun1
1Key Lab of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China.
Sensors (Basel, Switzerland)
|November 14, 2023
Summary
The Salinity Satellite
Area of Science:
- Earth Observation
- Remote Sensing Technology
- Oceanography
Background:
- The Salinity Satellite, launching in 2024, will incorporate the first phased array radar scatterometer.
- Validating new sensor technologies is crucial for successful Earth observation missions.
Purpose of the Study:
- To validate the measurement capabilities of the Salinity Satellite's phased array radar scatterometer.
- To assess the system's performance in measuring ocean surface backscatter coefficients.
Main Methods:
- Detailed analysis of the onboard verification flight test data.
- System design review, including phased array radar and digital beamforming.
- Calibration and phase amplitude correction procedures.
- Analysis of internal, onboard, and external noise signals.
Main Results:
- The scatterometer system demonstrated stability and reliability through noise signal analysis.
- Successful distinction between ocean and land backscatter coefficient characteristics.
- The phased array scatterometer accurately measured sea surface scattering characteristics.
Conclusions:
- The Salinity Satellite scatterometer is feasible for measuring backscatter coefficients using phased array technology.
- The system exhibits outstanding performance, even in complex marine environments.
