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New technologies in the fields of relative navigation and control strategies are required and ground-based testbeds can be successfully used to develop and validate these required advancements both in hardware and software. Several design aspects have to be taken into account when reproducing on the ground a reduced-gravity environment typical of satellites on orbit. This paper describes the design...
Ground-based testbeds have been widely used for the development and verification on the ground of algorithms and space instrumentation. This paper presents the development of a contactless measurement system to estimate the planar motion of a free floating robot in the development phase of a ground-based testbed translational module. The contactless system is used to estimate both position and azimuth...
Ground-based testbed have been used since the beginning of space exploration for the development and verification of both hardware and software. In this paper, we present the calibration and the validation of an optical flow sensor based navigation system for our ground-based spacecraft testbed. This contactless and low cost system is designed to estimate position and azimuth of the testbed translational...
Ground-based testbeds have been used since the beginning of space exploration for both hardware and software validation. In this paper we describe the innovative aspects of the attitude module of a cooperating spacecraft testbed under development at the University of Padova. We also present and discuss experimental results of specific attitude control maneuvers carried out using optimal control techniques.
Satellite Formation Flying (SFF) is a key technology for several future missions, since, with respect to a single spacecraft, it allows better performances, new capabilities, more flexibility and robustness to failure and cost reduction. Despite these benefits, however, the SFF concept poses several significant design challenges and requires new technologies, including new sensors, actuators and Guidance,...
Satellite Formation Flying (SFF) can go beyond mass and volume constraints that today's launchers pose on single satellite missions. However, the high levels of autonomy required by SFF result in stringent requirements on the Guidance Navigation and Control system. These requirements must face up with multitasking problems related to limited on board resources in terms of both computing capacity and...
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