Some investigations on the notching procedtire used in shaker tests on satellites

The notching procedure as used in the shaker test on a satellite is critically examined. In stead of the notching procedure an alternative test set-up, in which the dynamic interaction between launcher and spacecraft is taken into account, has been proposed and investigated for a simple model of launcher and satellite. Using this test set-up the...

Image data security in the concept of the agricultural real time imaging satellite system (artiss)

The study on image data security is directed to the requirement for exclusive access to satellite imagery in the concept of the Agricultiiral Real Time Imaging Satellite System (ARTISS). The security assessment indicates that user survey requests are handled confidentially and it shows the access vulnerability of the transmission of image data...