This paper presents a new approach to flood mapping using satellite synthetic-aperture radar (SAR) images that is based on intelligent techniques. In particular, we apply artificial neural networks, self-organizing Kohonen’s maps (SOMs), for SAR image segmentation and classification. Our approach was used to process data from different satellite SAR instruments (ERS-2/SAR, ENVISAT/ASAR, RADARSA...

An versatile and modular Electrical Ground Support Equipment (EGSE) system has been developed using Artificial Intelligence (AI) techniques to control and test the PESCA instrument and the communication process with the satellite without any human supervision. The PESCA instrument has been designed and built with the purpose of studying the Solar Energetic Particles and the Anomalous Cosmic Ray...

Artificial satellites were first deployed in the late 1950s. They have since brought about enormous progress in telecommunications. All communication satellites in their simplest form are concerned mainly with information communication from a source (transmitter) on the ground to a sink (receiver) that is at a geographically dispersed location through a satellite in space (acting as a retransmi...

The possibility to generate 2-D predictions of solar radiation one hour ahead and over a large geographic area is the focus of this study. In that view, hourly satellite maps of irradiations extracted from the Heliosat-3 have been used as training data and inputs of artificial neural networks (ANN) and as inputs for apersistence model. These models were computed for each point of the map, allow...

This paper presents a model based vision system intended for satellite proximity operations. The system uses natural features on the satellite surfaces and three dimensional models of the satellites and docking interfaces, and it does not require any artificial markers or targets. The system processes images from stereo cameras to compute 3D data. The pose is determined using a fast version of ...

The perceived robustness of multi-agent systems is claimed to be one of the great benefits of distributed control, but centralised control dominates in space applications. We propose the use of marketbased control to allocate tasks in a distributed satellite system. The use of an artificial currency allows us to take the capabilities, energy levels and location of individual satellites, as well...

The orbital dynamics of an artificial satellite in the Earth’s atmosphere is considered. An analytic first-order atmospheric drag theory is developed using Lagrange’s planetary equations. The short periodic perturbations due to the geopotential of all orbital elements are evaluated. And to construct a second-order analytical theory, the equations of motion become very complicated to be integrat...

Characterizing the errors in satellite-based precipitation estimation products is crucial for understanding their effects in hydrological applications. Six precipitation products derived from three algorithms are comprehensively evaluated against gauge data over mainland China from December 2006 to November 2010. These products include three satellite-only estimates: the Global Satellite Mappin...