This paper proposes an autonomous fire and haze detection technique using satellite images in the visible and near infrared wavelength range. The solution was designed for an embedded system that will fly on-board of a satellite and therefore provides one of the first algorithms for space-borne processing that is traditionally executed on the ground. Thus the unsupervised approach enables the i...

In order to support the communications needs of the International Space Station (ISS), alternative communications architectures to provide broadband support need to be considered. We address three communications options and evaluate an architecture for the direct to ground option, which could serve as an intermediary solution to satisfy near term communications needs of commercial experiments a...

We present the results of a recently finished project concerned with total ozone retrieval on a global scale from HIRS and MSU brightness temperatures. The project encompasses processing TOVS data ranging from 1986 to now by means of a neural network technique utilizing information from all spectral channels. Comparisons with ozone measurements from WOUDC Dobson and Brewer ground stations yield...

Thanks to post-flight analyses of several artificial satellites carried out during last years, the meteoroids hazard for space navigation and in-orbit satellites permanence is now clear. Even if catastrophic impact is a rare event, high meteoroids fluxes can erode and weaken the satellite or space station main structures. However, the main danger seems to be the impact-generated plasma, which c...

Thanks to post-flight analyses of several artificial satellites carried out during last years, the meteoroids hazard for space navigation and in-orbit satellites permanence is now clear. Even if catastrophic impact is a rare event, high meteoroids fluxes can erode and weaken the satellite or space station main structures. However, the main danger seems to be the impact-generated plasma, which c...

the gravity recovery and climate experiment (grace), twin satellites launched in march 2002, are making detailed measurements of the earth's gravity field. it will yield discoveries about gravity and the earth's natural systems. different sensors and instruments have been placed in the grace satellites to fulfill the primary scientific objective of the mission in mapping the earth’s g...