Tracking Radiometer Calibration Stability Using Three-Point Onboard Calibration
- Resource Type
- Conference
- Authors
- Aksoy, Mustafa; Racette, Paul E.
- Source
- 2018 IEEE 15th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2018 IEEE 15th Specialist Meeting on. :1-4 Mar, 2018
- Subject
- Geoscience
Radiometers
Microwave measurement
Target tracking
Fluctuations
Receivers
Microwave theory and techniques
Extraterrestrial measurements
microwave radiometer
calibration
stability
- Language
Absolute calibration of radiometers is implemented onboard using one hot and one cold external calibration targets. However, two-point calibration methods are unable to differentiate calibration drifts and associated errors from fluctuations in receiver gain and offset. This paper investigates the use of onboard three-point calibration algorithm for microwave radiometers to track calibration drifts and characterize associated errors in Earth and Space measurements of the radiometer.