Simulation of Earth Observation Data Utilizing a Virtual Satellite Camera

Image chain simulation is an essential tool for the design of Earth observation satellites. In this work, a simulator for the images produced by an upcoming low Earth orbit remote sensing nanosatellite constellation by the Technical University of Munich, Center for Telematics Würzburg and the Bavarian Surveying and Mapping Authority is developed. Projection and sampling models adjusted for this application are presented. The system’s modulation transfer function is estimated according to analytical models for atmosphere, sensor, and optical system effects. Images are simulated based on digital orthophotos and the desired satellite orbit. Disturbances of the ideal orbits are introduced, and their impact on the appearance of the produced images is explored. A comparison with other nanosatellite remote sensing missions is used to estimate expected inaccuracies resulting from attitude deviations. The localization of real and fictional ground control points is employed to estimate positional inaccuracies in the simulated images caused by a lack of information about terrain shape and elevation.     «

Image chain simulation is an essential tool for the design of Earth observation satellites. In this work, a simulator for the images produced by an upcoming low Earth orbit remote sensing nanosatellite constellation by the Technical University of Munich, Center for Telematics Würzburg and the Bavarian Surveying and Mapping Authority is developed. Projection and sampling models adjusted for this application are presented. The system’s modulation transfer function is estimated according to analyti...     »