Sustav za primanje telemetrijskih podataka satelita

master's thesis

• Title (english): Satellite telemetry data reception system
• Author: Barbara Klier
• Mentor: Marko Horvat (mentor)
• Mentor: Josip Vuković (sumentor)
• Committee member: Marko Horvat (predsjednik povjerenstva)
• Committee member: Dubravko Babić (član povjerenstva)
• Committee member: Josip Vuković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2022-09-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Satelit je umjetni objekt koji je namjerno postavljen u orbitu nekog planeta. Sateliti su obično poluneovisni računalno upravljani sustavi s mnogim podsustavima koji sudjeluju u zadacima kao što su proizvodnja energije, kontrola topline, kontrola položaja, i ostalo. Beacon je satelitski signal koji označava njegovu prisutnost u svijetu i često se koristi za telemetrijske podatke koji se odnose na zdravlje letjelice.
Potaknuti FERSAT-om, satelitom kojeg Fakultet elektrotehnike i računarstva planira poslati u svemir narednih godina, cilj rada bio je odabrati satelit, primiti i obraditi njegov signal i telemetrijske podatke, pohraniti podatke i izraditi računalnu aplikaciju za prikaz podataka.
Prvo su izdvojeni sateliti koji su se pratili i čija se telemetrija pokušala primiti. Napravljen je popis satelita prema određenim kriterijima i sateliti su praćeni tijekom nekoliko mjeseci.
Zatim je izrađen podsustav za prijam podataka koji se sastoji od kombinacije raznih povezanih programskih rješenja za primanje, obradu, demodulaciju, dekodiranje i formatiranje signala, koji zapisuje primljene podatke u log datoteku.
Izrađen je i model podataka i pripadna relacijska baza podataka za pohranu primljenih podataka. Za obradu i pohranu podataka izrađen je parser koji pristupa log datoteci i pohranjuje njen sadržaj u bazu. Podaci su naposljetku prikazani u izrađenoj web aplikaciji, kao tablični ispis polja svake primljene poruke, kojoj korisnik može pristupiti.
Za demonstrativni prikaz u web aplikaciji izabrani su primjeri telemetrijskih podataka BugSat i Fox-1 satelita, i primljeni APRS podaci Maya-3 i Maya-4 satelita.

Abstract (english)

A satellite is an artificial object that is intentionally placed in the orbit of a planet. Satellites are usually semi-independent computer controlled systems with many subsystems involved in tasks such as power generation, heat control, position control, and more. A beacon is a satellite signal that indicates its presence in the world and is often used for telemetry data related to the health of the spacecraft.
Encouraged by FERSAT, a satellite that the Faculty of Electrical Engineering and Computing plans to send into space in the coming years, the aim of the paper was to select a satellite, receive and process its signal and telemetry data, store the data and create a computer application to display the data.
First, the satellites that were tracked and whose telemetry was attempted to be received were singled out. A list of satellites was made according to certain criteria and the satellites were monitored for several months.
Then, a data reception subsystem was assembled. It consists of various interconnected software tools and solutions for receiving, processing, demodulating, decoding and formatting the signal, and writes the received data to a log file.
A data model and an associated relational database for storing received data were also developed. A parser was created to process and store data. It reads the log file and stores its contents in the database. The data is finally displayed in the developed web application, as a tabular printout of the fields of each received message, which the user can access.
For demonstration purposes in the web app, examples of BugSat and Fox-1 satellite telemetry data were selected, as well as real-time APRS data from Maya-3 and Maya-4 satellites.

• Keywords: satelit; satelitski signal; telemetrija; APRS; CW; MySQL; PHP
• Keywords (english): satellite; satellite beacon; telemetry; APRS; CW; MySQL; PHP
• Language: croatian
• URN:NBN: urn:nbn:hr:168:971472
• Study programme: Title: Information and Communication Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 09:12:21