An optimal microsatellite system for optical remote sensing data management

摘要

Inter-Satellite Link represents an innovative aspect in remote sensing missions, allowing the exchange of data between satellites of a constellation according to appropriate algorithms for the minimization of the delivery time of requested data. In a recent study, the feasibility of gaining a long period of Inter-Satellite Link with an acceptable level of Bit Error Rate has been demonstrated by using a Walker Constellation composed of 20 micro-satellites located on Sun-Synchronous Orbits. In this paper, an investigation into the performance of such a constellation through the implementation of an optimal process of target access and data exchange among satellites has been carried out, together with a sizing of the onboard telecommunication system. A process analysis has been executed through the modelling of weighted fitting functions, specific for an optical remote sensing system.