Browsing SINTEF Open by Author "Morrison, Aiden J"
Now showing items 1-15 of 15
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Advanced RFI Detection, Alert and Analysis System Design and Monitoring Campaign Results
Morrison, Aiden J; Sokolova, Nadezda; Swinden, Richard; Musumeci, Luciano; Caparra, Gianluca (Journal article, 2022)The Advanced Radio Frequency Interference (RFI) Detection Analysis and Alerting System (ARFIDAAS) projects focus on providing Global Navigation Satellite System (GNSS) users and GNSS-based service providers with low latency ... -
Analysis of Spatial Decorrelation of Small-Scale Tropospheric Delay Using High-Resolution NWP Data
Håkegård, Jan Erik; Sokolova, Nadezda; Morrison, Aiden J (Peer reviewed; Journal article, 2023)This paper contains results from a study where numerical weather product (NWP) data provided by MET Norway were used to estimate the differential zenith tropospheric delay (dZTD) for an area including Scandinavia, Finland ... -
Automatic GNSS RFI Classification Challenges
Diez, Anja; Morrison, Aiden J; Sokolova, Nadezda (Journal article, 2022)This article describes the real-world challenges that are encountered when trying to automatically categorize and classify the radio frequency interference (RFI) events captured in the GNSS signal bands by an international ... -
An autonomous drone-based system for inspection of electrical substations
Langåker, Helge-André; Kjerkreit, Håkon; Syversen, Christoffer L; Moore, Richard J.D.; Holhjem, Øystein Hov; Jensen, Irene; Morrison, Aiden J; Transeth, Aksel Andreas; Kvien, Oddgeir; Berg, Gunnar; Olsen, Thomas; Hatlestad, Alexander; Negård, Thomas; Broch, Rolf; Johnsen, Jørn E (Peer reviewed; Journal article, 2021) -
An autonomous drone-based system for inspection of electrical substations
Langåker, Helge-André; Kjerkreit, Håkon; Syversen, Christoffer L; Moore, Richard J.D.; Holhjem, Øystein Hov; Jensen, Irene; Morrison, Aiden J; Transeth, Aksel Andreas; Kvien, Oddgeir; Berg, Gunnar; Olsen, Thomas; Hatlestad, Alexander; Negård, Thomas; Broch, Rolf; Johnsen, Jørn E (Peer reviewed; Journal article, 2021)In the years to come, large power grid operators will operate and maintain an ever-increasing asset base. New innovative solutions are needed to increase the quality and efficiency of asset management to avoid corresponding ... -
Characterization of the GNSS RFI Threat to DFMC GBAS Signal Bands
Sokolova, Nadezda; Morrison, Aiden J; Diez, Anja (Peer reviewed; Journal article, 2022)This article presents analysis results from a long-term multi-site Global Navigation Satellite System (GNSS) Radio Frequency Interference (RFI) monitoring campaign in the context of Ground Based Augmentation System (GBAS) ... -
Design of a Multiband Global Navigation Satellite System Radio Frequency Interference Monitoring Front-End with Synchronized Secondary Sensors
Morrison, Aiden J; Sokolova, Nadezda; Curran, James (Journal article; Peer reviewed, 2018)This paper investigates the challenges of developing a multi-frequency radio frequency interference (RFI) monitoring and characterization system that is optimized for ease of deployment and operation as well as low per ... -
Differential ZTD estimation based on high spatial resolution NWP data for the Nordic countries
Håkegård, Jan Erik; Sokolova, Nadezda; Morrison, Aiden J (Chapter, 2022)This paper contains results from a study where Numerical Weather Product (NWP) data provided by MET Norway are used to estimate the differential zenith tropospheric delay (dZTD) for an area covering Scandinavia, Finland ... -
Do modern multi-frequency civil receivers eliminate the ionospheric effect?
Sokolova, Nadezda; Morrison, Aiden J; Curran, James; Petovello, Mark (Journal article, 2017) -
GNSS-Denied Navigation using Direction of Arrival from Low-Cost Software Defined Radios and Signals of Opportunity
Winter, Adrian; Sokolova, Nadezda; Morrison, Aiden J; Johansen, Tor Arne (Peer reviewed; Journal article, 2022)This paper describes a novel navigation system for outdoor navigation in conditions where reliable satellite navigation cannot be assumed. It is build around inexpensive of-the-shelf hardware and could be used with several ... -
High Latitude Ionospheric Gradient Observation Results from a Multi-Scale Network
Sokolova, Nadezda; Morrison, Aiden J; Jacobsen, Knut Stanley (Peer reviewed; Journal article, 2023)In this article, a cluster comprised of eight Continuously Operating Reference Station (CORS) receivers surrounding five supplemental test stations located on much shorter baselines is used to form a composite multi-scale ... -
Improving Computer Vision-Based Perception for Collaborative Indoor Navigation
Ruotsalainen, Laura; Morrison, Aiden J; Makela, Maija; Rantanen, Jesperi; Sokolova, Nadezda (Peer reviewed; Journal article, 2021)Collaborative navigation is the most promising technique for infrastructure-free indoor navigation for a group of pedestrians, such as rescue personnel. Infrastructure-free navigation means using a system that is able to ... -
Jammertest 2022: Jamming and Spoofing Lessons Learned
Morrison, Aiden J; Sokolova, Nadezda; Solberg, Anders Martin; Gerrard, Nicolai; Rødningsby, Anders; Hauglin, Harald; Rødningen, Thomas; Dahlø, Tor Ole (Peer reviewed; Journal article, 2023)Jammertest 2022 was a week-long series of satellite navigation and timing signal jamming and spoofing exercises carried out on the Norwegian island of Andøya in September of 2022. Organized via a collaboration between the ... -
Multi-band Multi-site GNSS RFI Monitoring Results after a Year of Operation
Morrison, Aiden J; Sokolova, Nadezda (Peer reviewed; Journal article, 2021)An international network of Radio Frequency Interference (RFI) monitoring stations covering all L-band Global Navigation Satellite System (GNSS) signals has provided large amounts of data on the occurrence rates and ... -
Radio-Frequency Interference Considerations for Utility of the Galileo E6 Signal Based on Long-Term Monitoring by ARFIDAAS
Morrison, Aiden J; Sokolova, Nadezda; Gerrard, Nicolai; Rødningsby, Anders; Rost, Christian; Ruotsalainen, Laura (Peer reviewed; Journal article, 2023)The extent to which navigation signals in the E6 band may be impacted by shared spectrum allocations might be underappreciated. This paper presents top-level observations from a multi-year international radio frequency ...