نتایج جستجو برای: nanosatellite
تعداد نتایج: 230 فیلتر نتایج به سال:
When working with space systems the keyword is resources. For a satellite in orbit all resources are sparse and the most critical resource of all is power. It is therefore crucial to have detailed knowledge on how much power is available for an energy harvesting satellite in orbit at every time – especially when in eclipse, where it draws its power from onboard batteries. This paper addresses t...
Small satellites tend to be power-limited, so that actuators used to control the orbit and attitude must compete with each other as well as with other subsystems for limited electrical power. The Virginia Tech nanosatellite project, HokieSat, must use its limited power resources to operate pulsed-plasma thrusters for orbit control and magnetic torque coils for attitude control, while also provi...
Attitude motion reconstruction of the Technological NanoSatellite TNS-0 #2 during last month its mission is presented in paper. The satellite was designed to test performance data transmission via Globalstar communication system. This system successfully provided telemetry (even atmosphere re-entry) up an altitude 156 km. Satellite attitude for this phase analyzed nominal represents passive sta...
Abstract Quantum random number generators find applications in both quantum and classical communications schemes, particularly security protocols where they can be used as a source of seed or key material. In this work, we describe the implementation generator on-board nanosatellite deployed low Earth orbit. Our samples shot noise from an entangled photon-pair based on spontaneous parametric do...
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