scholarly journals Relative Navigation and Control of Nano-Satellites in Formation

2018 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Data Transmission ◽  
Mobile Robotics ◽  
Control Plant ◽  
Orbit Space ◽  
Small Satellite ◽  
Small Satellites ◽  
Navigation And Control ◽  
And Control ◽  
Theoretical Foundations ◽  
Selection Of

The paper is devoted to the theoretical foundations and achievable performance analyses of control principles for a group of small satellites as a single distributed control plant. The composition of on-board navigation sensors for each small satellite in their formation is also considered. Selection of the characteristics of data transmission channels, the development of integrated systems for estimating the parameters of relative motion of satellites is made. The results of the work can be used in the design of low-orbit space-based systems for control the motion of terrestrial dynamic objects from a remote command post, including the tasks of telemedicine and mobile robotics.

The Navigation and Control of Supersonic Aircraft

1962 ◽  
Vol 15 (2) ◽  
pp. 179-219 ◽  
Author(s):  
William L. Polhemus
Keyword(s):  
High Altitude ◽  
Traffic Control ◽  
Navigation System ◽  
High Speed ◽  
Meteorological Factors ◽  
Integrated System ◽  
Supersonic Aircraft ◽  
Navigation And Control ◽  
And Control ◽  
Selection Of

This paper, which was presented at an Ordinary Meeting of the Institute held in London on 17 November 1961, discusses aspects of high-speed, high-altitude navigation which will have a bearing on the selection of a navigation system and control philosophy for supersonic transports. The effects of certain separation criteria on systems accuracy are described, as are meteorological factors bearing on operation of the aircraft. Estimated performance capabilities which relate to traffic control and navigation are described. An analysis is offered of the effects of particular system accuracies on the selection of components of a navigation system and, finally, an integrated system is described, with arguments presented for certain levels of redundancy, reliability and automation.

scholarly journals Simulation and Experimental Evaluation of a Flexible Time Triggered Ethernet Architecture Applied in Satellite Nano/Micro Launchers

Aerospace ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 84 ◽  
Author(s):  
Vincenzo Eramo ◽  
Francesco Lavacca ◽  
Francesco Valente ◽  
Andrea Pisculli ◽  
Stefano Caporossi
Keyword(s):  
New Technologies ◽  
Low Cost ◽  
Test Bed ◽  
Control Applications ◽  
Small Satellites ◽  
Navigation And Control ◽  
Comparable Performance ◽  
Ethernet Network ◽  
The One ◽  
And Control

The success of small satellites has lead to the study of new technologies for the realization of Nano and Micro Launch Vehicle (NMLV) in order to make competitive launch costs. The paper has the objective to define and experimentally investigate the performance of a communication system for NMLV interconnecting the End Systems as On-Board Computer (OBC), telemetry apparatus, Navigation Unit...we propose a low cost Ethernet-based solution able to provide the devices with high interconnection bandwidth. To guarantee hard delays to the Guide, Navigation and Control applications we propose some architectural changes of the traditional Ethernet network with the introduction of a layer implemented in the End Systems and allow for the lack of any contention on the network links. We show how the proposed solution has comparable performance to the one of TTEthernet standard that is a very expensive solution. An experimental test-bed equipped with Ethernet switches and Hercules boards by Texas Instruments is also provided to prove the feasibility of the proposed solution.

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