The spectrum monitoring system by Smog-1 satellite

Dudás, Levente; Szucs, Laszlo; Gschwindt, A.

doi:10.1109/comite.2015.7120316

Cited by 6 publications

(7 citation statements)

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“…The LEO of MRC-100 lasts 90 minutes, spending 60% of that time in light and 40% in darkness. As a result, the DC input averages 0.68 W with a peak of 1.7 W (on LEO, the DC input will be 36% higher) [3], [5], [12], [13]. The onboard systems of the MRC-100 is a single-point-failure tolerant and cold-redundant.…”

Section: A Power Budget Estimationmentioning

confidence: 99%

“…The bandwidth of the communication system of MRC-100 is licensed for operation at 12.5 kHz for uplink and 20 kHz for downlink in accordance with the international amateur radio union (IARU), and the international telecommunication union (ITU). [12], [13]. MRC-100 maximum distance from the ground station (communication in zero degrees elevation angle -horizon) is calculated by equation ( 6) at 600 km apogee/perigee of the orbit.…”

Section: Mrc-100 Communication System and Ground Stationsmentioning

confidence: 99%

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Resonant Radar Reflector On VHF / UHF Band Based on BPSK Modulation at LEO Orbit by MRC-100 Satellite

Humad,

Dudás

2024

Infocommunications journal

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This paper presents a novel method for identify ing and tracking PocketQube satellites: the MRC-100 satellite is a model, and this method is based on a resonant radar reflec tor. The resonant reflector’s basic concept is that the resonant reflector uses a VHF/UHF communication subsystem antenna; there is no radiated RF signal, which means the power con sumption is only some Milliampere (mA). The continuous wave (CW) illuminator RF source is on the ground, and the onboard antenna receives the CW RF signal from the Earth. The micro controller (uC) periodically switches PIN diode forming BPSK modulated signal reflection so that another Earth station can receive the backscattered Binary Phase Shift Keying (BPSK) modulated signal. Also, it can detect the satellite if the ground station receiver can use a matched filter like a correlation re ceiver. If the ground station receiver knows the BPSK code of the satellite, it can detect it. If not, there is no way to detect the satellite. This method is similar to Radio Frequency Identifica tion (RFID) applications, but the reader is the ground station, and the tag is the satellite.

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Section: A Power Budget Estimationmentioning

confidence: 99%

Section: Mrc-100 Communication System and Ground Stationsmentioning

confidence: 99%

Resonant Radar Reflector On VHF / UHF Band Based on BPSK Modulation at LEO Orbit by MRC-100 Satellite

Humad,

Dudás

2024

Infocommunications journal

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“…are very difficult to achieve in PocketQubes due to the low available power for on-board computations and limited downlink capability. PocketQubes are more suited for smaller mission, targeted at specific signals, like monitoring the vertical leakage from TV towers as being demonstrated on the Smog-1 PocketQube [27]. The small form factor and low cost make them ideal for a dedicated mission, rather than at a generic system, benefitting from a fast development cycle and potentially frequent launches.…”

Section: Communication Servicesmentioning

confidence: 99%

Utility and constraints of PocketQubes

et al. 2020

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PocketQubes are a form factor of highly miniaturized satellites with a body of one or more cubic units of 5 cm. In this paper, the characteristics of PocketQubes in terms of their constraints and their (potential) utility are treated. To avoid space debris and limit collision risk, the orbits of PocketQubes need to be constraint. An analysis of orbital decay characteristics has been carried out which, considering existing space regulations and a pro-active attitude, PocketQubes should preferably be launched in low Earth orbits below 400 km altitude. Due to technical constraints, such as form factor, power and attitude control, the domain of applications for single PocketQube missions is limited. Still, they can act as low-cost training and technology demonstration platforms. To make PocketQubes an attractive platform for other types of missions, not only the launch cost, but also the development, production and operations cost should be significantly lower than CubeSats. When the PocketQube platform matures and produced in high numbers, networks of PocketQubes can enable new applications. Applications considered feasible are in the field of (but not limited to) continuous surveillance using optical instruments, gravity field monitoring using precise orbit determination, in-situ measurements of the space environment, low data rate or bandwidth communication services and inexpensive probes around other celestial bodies.

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“…After Masat-1, on educational way, the engineering model of Smog-1 satellite had been developed including electrical power system, on-board computer, communication and spectrum monitoring system, automated and remote controlled satellite control ground station [168].…”

Section: Microwave Remote Sensing Laboratorymentioning

confidence: 99%

BME VIK Annual Research Report on Electrical Engineering and Computer Science 2015

Vajk¹,

Harsányi

Poppe

et al. 2016

Period. Polytech. Elec. Eng. Comp. Sci.

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PrefaceThroughout László Vajta, Dean of BME VIK János Levendovszky, Deputy Dean of BME VIK Department of Automation and Applied InformaticsDepartment of Automation and Applied Informatics (AUT) is one of the largest and dynamically developing departments at BME with diverse scope competences such as control theory, embedded systems, software modelling, applied software development, Internet of Things, power electronics, mechatronics, and many others. The department's main activities are education, research and development. Training versatile electrical and software engineers with solid practical knowledge is our top priority. Our profile also includes developing high quality software and hardware solutions for industry partners. All of our activities are backed by strong research background.In 2015, the department has organized the 21 st European Wireless (EW) Conference. The EW 2015 conference hosted more than 140 participants from 30 different countries. The 2015 edition of EW was aimed at addressing a key theme on "5G and beyond."The next sections summarize the key research results of the department in year 2015. IoT and Smart CityThe Internet of Things (IoT) is transforming the surrounding physical objects into an ecosystem of information that enriches our everyday life. The IoT represents the convergence of advances in miniaturization, wireless connectivity, and increased data storage, and is driven by various sensors. Application and service development methods and frameworks are required to support the realization of solutions covering data collection, transmission, data processing, analysis, reporting, and advanced querying. Our SensorHUB framework URBMOBI is a mobile environmental sensor that (i) provides temporally and spatially distributed environmental data, (ii) fulfills the need for monitoring at various places without the costs for a large number of fixed measurement stations, (iii) integrates small and precise sensors in a system that can be operated on buses, trams, or other vehicles, (iv) concentrates on urban heat and thermal comfort, and (v) aims at providing climate services and integration with real-time climate models.utilizes the state-of-the-art open source technologies and provides a unified tool chain for IoT related application and ser-URBMOBI project has been worked out between 2013 and 2015 by the following consortium: RWTH Aachen University (Germany), Netherlands Organization for Applied Scientific Research TNO (Netherlands), ARIA Technologies (France), Budapest University of Technology and Economics (Hungary), and Meteorological and Environmental Earth Observation (Italy).The SOLSUN (Sustainable Outdoor Lighting & Sensory Urban Networks) project is about to demonstrate how intelligent city infrastructure can be created in a cost-effective and sustainable way by reusing existing street lighting as the communications backbone. We apply different technologies and methods to reduce energy consumption at the same time as turning streetlights into nodes on a scalable network that is al...

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The spectrum monitoring system by Smog-1 satellite

Cited by 6 publications

References 1 publication

Resonant Radar Reflector On VHF / UHF Band Based on BPSK Modulation at LEO Orbit by MRC-100 Satellite

Resonant Radar Reflector On VHF / UHF Band Based on BPSK Modulation at LEO Orbit by MRC-100 Satellite

Utility and constraints of PocketQubes

BME VIK Annual Research Report on Electrical Engineering and Computer Science 2015

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