Results 1 to 10 of about 19,841 (200)
A Star Sensor On-Orbit Calibration Method Based on Singular Value Decomposition [PDF]
Sensors, 2019 The navigation accuracy of a star sensor depends on the estimation accuracy of its optical parameters, and so, the parameters should be updated in real time to obtain the best performance. Current on-orbit calibration methods for star sensors mainly rely
Liang Wu +5 more
doaj +5 more sources
On-Orbit Calibration of Installation Matrix between Remote Sensing Camera and Star Camera Based on Vector Angle Invariance. [PDF]
Sensors (Basel), 2020 To achieve photogrammetry without ground control points (GCPs), the precise measurement of the exterior orientation elements for the remote sensing camera is particularly important.
Tang Y, Wei Z, Wei X, Li J, Wang G.
europepmc +2 more sources
In-Orbit Calibration of Phase Retardance for Channeled Spectropolarimeter. [PDF]
Sensors (Basel), 2023 The phase retardance of the optical system (PROS) is a crucial factor limiting the accuracy of the Stokes vector reconstruction for the channeled spectropolarimeter. The dependence on reference light with a specific angle of polarization (AOP) and the sensitivity to environmental disturbance brings challenges to the in-orbit calibration of PROS.
Dong Y, Ju X, Yuan J, Yan C, Zhang T.
europepmc +4 more sources
Remote Sensing, 2014 On-orbit geometric calibration is a key technology to guarantee the geometric quality of high-resolution optical satellite imagery. In this paper, we present an approach for the on-orbit geometric calibration of high-resolution optical satellite imagery,
Mi Wang, Bo Yang, Fen Hu, Xi Zang
doaj +3 more sources
A Novel Error Model of Optical Systems and an On-Orbit Calibration Method for Star Sensors. [PDF]
Sensors (Basel), 2015 In order to improve the on-orbit measurement accuracy of star sensors, the effects of image-plane rotary error, image-plane tilt error and distortions of optical systems resulting from the on-orbit thermal environment were studied in this paper.
Wang S, Geng Y, Jin R.
europepmc +2 more sources
Applied Sciences, 2023 Magnetometers are important sensors with applications in the attitude determination and control systems of satellites. CubeSats have certain limitations related to power, mass, and volume.
Dulani Chamika Withanage +2 more
doaj +3 more sources
On-Orbit Radiometric Calibration for a Space-Borne Multi-Camera Mosaic Imaging Sensor
Remote Sensing, 2017 As the core and foundational technology, on-orbit radiometric calibration of a space-borne sensor is of great importance for quantitative remote sensing applications.
Yong Xie, Jie Han, Xingfa Gu, Qiyue Liu
doaj +3 more sources
An On-Orbit Calibration Method of Star Sensor Based on Angular Distance Subtraction
IEEE Photonics Journal, 2021 Star sensor needs real-time calibration to improve its navigation accuracy. Compared with other parameters, the position of the principal point is more easily affected by the measurement error, which leads to low calibration accuracy.
Liang Wu +3 more
doaj +3 more sources
On-Orbit Calibration Method for Correction Microwave Radiometer of the HY-2 Satellite Constellation
Remote Sensing, 2023 The HY-2D satellite was successfully launched in 2022, which marks the first phase of the HY-2 satellite constellation. In order to reduce the deviation of wet path delay (WPD) between different satellites in the HY-2 satellite constellation and increase
Xiaofeng Ma +4 more
doaj +3 more sources
Assessment of S-NPP VIIRS On-Orbit Radiometric Calibration and Performance
Remote Sensing, 2016 The VIIRS instrument on board the S-NPP spacecraft has successfully operated for more than four years since its launch in October 2011. Many VIIRS environmental data records (EDR) have been continuously generated from its sensor data records (SDR) with ...
Xiaoxiong Xiong +9 more
doaj +3 more sources