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Verification of phase and frequency modulation for software-defined radio baseband systems using field data
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Rymdteknik.ORCID-id: 0000-0002-1316-1423
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Rymdteknik. Institute for Aerospace Studies, University of Toronto.ORCID-id: 0000-0003-4977-6339
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Signaler och system.ORCID-id: 0000-0001-8647-436X
2017 (Engelska)Ingår i: 35th AIAA International Communications Satellite Systems Conference, ICSSC 2017, American Institute of Aeronautics and Astronautics, 2017, artikel-id 2017-5407Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This paper presents the verification of phase and frequency modulation schemes for a software-defined radio baseband system that is being prototyped to support satellite telemetry, telecommand and ranging. It presents the theory behind the two modulation schemes, implementation and verification against emulated signals from a space-qualified hardware-based baseband system as well as from the Odin satellite.

Ort, förlag, år, upplaga, sidor
American Institute of Aeronautics and Astronautics, 2017. artikel-id 2017-5407
Nationell ämneskategori
Annan elektroteknik och elektronik Signalbehandling
Forskningsämne
Rymdtekniska system; Signalbehandling
Identifikatorer
URN: urn:nbn:se:ltu:diva-69457DOI: 10.2514/6.2017-5407Scopus ID: 2-s2.0-85047988820OAI: oai:DiVA.org:ltu-69457DiVA, id: diva2:1217559
Konferens
35th AIAA International Communications Satellite Systems Conference, ICSSC 2017, Trieste, Italy, 16-19 October 2017
Anmärkning

ISBN för värdpublikation: 9781624105180

Tillgänglig från: 2018-06-13 Skapad: 2018-06-13 Senast uppdaterad: 2023-09-05Bibliografiskt granskad
Ingår i avhandling
1. A Software-Defined Baseband for Satellite Ground Operations: Feasibility and Design
Öppna denna publikation i ny flik eller fönster >>A Software-Defined Baseband for Satellite Ground Operations: Feasibility and Design
2021 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Satellite telemetry, tracking, and command (TT&C) is a crucial activity needed to maintainthe health of a spacecraft or sometimes to facilitate payload data download. TT&Cground operations are facilitated by a communication device known in the TT&C communityas a baseband. State-of-the-art baseband systems currently in the market haveseveral financial and technical limitations. Financial drawbacks include high capital expenditure,operational expenditure, maintenance costs, and high upgrade costs, whiletechnical limitations include both upgradability and scalability.This thesis presents the feasibility study of a software-defined baseband (SDB) as aviable alternative to existing basebands. The SDB considered here is implemented on aradio architecture that consists of a general-purpose processor for performing radio functionsand low-cost commercial-off-the-shelf, software-defined radio frontends for signalsampling. The research questions focus on the feasibility and design aspects of this SDB.This thesis approaches the design of the SDB with a software development cyclethat involves functional analysis (design), verification, and validation of the radio functionsconstituting the SDB system. The radio functions are the telemetry receiver andthe telecommand transmitter. Functional analysis is performed through functional flowblock diagrams. The verification process is performed through simulations that take intoaccount realistic channel impairments for missions operating in the S-band and characterizedby the Consultative Committee for Space Data Systems (CCSDS) as category Amissions (less than 2 million km). Validation is performed on a laboratory testbed andseveral orbiting satellites.Through the above software development cycle, the telemetry receiver and telecommandtransmitter are developed using the open-source GNU radio development kit. Modulationschemes, line codes, and filters along with CCSDS forward error correction codescommonly employed in TT&C communications are successfully designed, verified in simulations,and validated in a hardware testbed. The performance results from the validationtests demonstrate that it is feasible to implement the SDB TT&C radio functions on theadopted radio architecture.Finally, this thesis investigates in detail the novel concept of multiple spacecraft peraperture (MSPA) that enables communication with several spacecraft from a single antenna.It focuses on in-band interference and out-of-band emissions arising from radiatingmultiple telecommand links from a low-cost SDR frontend. An MSPA transceiver is successfullydeveloped and integrated into the SDB system. Validation tests show that itis feasible for the integrated MSPA transceiver to radiate two telecommand links whileconforming to spectral regulations.

Ort, förlag, år, upplaga, sidor
Luleå: Luleå University of Technology, 2021. s. 220
Serie
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
Nyckelord
Software-Defined Radios, Satellite Ground Operations, Satellite Telemetry, Command, and Tracking
Nationell ämneskategori
Elektroteknik och elektronik
Forskningsämne
Rymdtekniska system
Identifikatorer
urn:nbn:se:ltu:diva-81500 (URN)978-91-7790-717-6 (ISBN)978-91-7790-718-3 (ISBN)
Disputation
2021-02-15, D1, Rymdcampus, Bengt Hultqvists väg 1, Kiruna, 13:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2020-11-23 Skapad: 2020-11-21 Senast uppdaterad: 2023-09-05Bibliografiskt granskad

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Browne Mwakyanjala, MosesEmami, Rezavan de Beek, Jaap

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