Earth Observation use case study of distributed satellite systems with NB-IoT communications
Visualitza/Obre
IreneGuitart_TFM_NBIoT_EOSat.pdf (8,413Mb) (Accés restringit)
Sol·licita una còpia a l'autor
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/374681
Correu electrònic de l'autorireneguitart87hotmail.com
Tipus de documentProjecte Final de Màster Oficial
Data2022-06-22
Condicions d'accésAccés restringit per decisió de l'autor
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
Recent climate changes have had widespread impacts on human and natural systems resulting in an increasing frequency of ecosystem disasters such as floods and droughts, windstorms or fires. They can be monitored either with space-borne or in-situ measurements and in some way be predicted in order to reduce their impact. Nevertheless, these monitoring systems are not optimal for an early detection and constant monitoring. The next generation Internet of Things (IoT) will be the key enablers for future effective disaster management infrastructures that enables to integrate large and wide technologies in satellite missions. A promising protocol in this line is NB-IoT. This new protocol has become a solution inside the LPWA networks, offering low power consumption and long battery life, transmitting data at low bit rates over long distances and scalability between others. Earth Observation satellites could take advantage of this new type of communications to achieve novel applications and provide fast responses to natural disasters monitorization. A Distribute Satellite System Simulator able to reproduce a constellation of EO satellites monitoring natural hazards with the benefit from a NB-IoT networks will be the focus of this project. The project will contribute to the DSS-SIM, a satellite simulator from i2Cat, originally from UPC. As a first step, the orbit prediction will be improved to an SGP4 model, since it only provided a two-body Kepler model. This will be done by embedding the Satellite Toolbox from Julia language in the DSS-SIM. Unfortunately, non-expected results will result in finally using a C++ solution for this orbital model upgrade. After then, the NB-IoT scenario will be included in the main source code. This scenario has been first studied and justified. A Planet Labs constellations will be justified as the satellites studied to benefit from NB-IoT networks. The Earth location where monitoring sensors is presented too with the study developed of the most damaging catastrophes tracked. Moreover, the requirements of the sensors in the places selected will be discussed too. To conclude the project, LENA module from NS-3 platform will be found as a solution to simulate the scenario defined, since there is an adaption which allows to simulate NB-IoT cases in an static scenario. Due to incompatibility reasons between LENA module and DSS-SIM to modify this static case to a non-static one, the simulation will be done for an static case between an Earth sensor and a GEO satellite as a first approach. In a future, the solution should be able to simulate LEO scenarios where the relative positions to the Earth are not constant.
TitulacióMÀSTER UNIVERSITARI EN ENGINYERIA AERONÀUTICA (Pla 2014)
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
IreneGuitart_TFM_NBIoT_EOSat.pdf | 8,413Mb | Accés restringit |