After that, the corresponding point of the same pixel value is found from the two consecutive single pixel rings, and the relative rotation angle of the solar meridian is calculated according to the trigonometric relationship. Finally, simulation and outdoor experiments are performed. The algorithm ...
We present an algorithm to calculate the azimuth and elevation angles for a dual axis tracker to be pointed away from the sun with a desired orientation between the sun and the tracker face. Desired tracker positions are specified in terms of angle of incidence (AOI) and AOI direction, i.e...
A Novel Algorithm for Estimating the Relative Rotation Angle of Solar Azimuth through Single-Pixel Rings from Polar Coordinate Transformation for Imaging Polarization Navigation SensorsPolarized skylightPolar coordinate transformationAOPSolar meridianPolarized skylight provides navigation compass for many ...
A novel algorithm for estimating the relative rotation angle of solar azimuth through single-pixel rings from polar coordinate transformation for imaging polarization navigation sensorsPolarized skylightPolar coordinate transformationAOPSolar meridianPolarized skylight provides navigation compass for many ...
To cover the entire observation geometry of DPC, the simulation value of VZA is set to 0–70° with the step of 10°, the solar zenith angle (SZA) is set to 0–70° with the step of 10°, and the sun–satellite relative azimuth angle (RAA) is set to 0–180° with the step ...
where θn is the surface zenith angle (slope), φS is the solar azimuth angle and φn the surface azimuth angle (aspect). 2.4. Relative radiometric normalization We developed a simplified method for relative radiometric normalization of TOA images. This method does not require atmospheric data ...
Cloud shadows were defined as the intersection of the predicted cloud shadow area, derived from the cloud probability layer and the mean solar azimuth angle, and dark areas, identified as low-reflectance, near-infrared (NIR) pixels. To compensate for potential atmospheric contamination, we avoided ...