A5062390436- Indoor and Outdoor Localization Technologies
- GNSS positioning and interference
- Bluetooth and Wireless Communication Technologies
- IoT Networks and Protocols
- Image and Signal Denoising Methods
- RFID technology advancements
- Blind Source Separation Techniques
- Technology Adoption and User Behaviour
- Green IT and Sustainability
- Human-Automation Interaction and Safety
- Advanced Frequency and Time Standards
- Human Mobility and Location-Based Analysis
- Law, logistics, and international trade
- Robotics and Sensor-Based Localization
- Ionosphere and magnetosphere dynamics
- Fault Detection and Control Systems
- Radio Astronomy Observations and Technology
- Ergonomics and Musculoskeletal Disorders
- Privacy, Security, and Data Protection
- Optical Wireless Communication Technologies
- Planetary Science and Exploration
- Inertial Sensor and Navigation
- Occupational Health and Safety Research
- Sharing Economy and Platforms
- Space Satellite Systems and Control
Universitatea Națională de Știință și Tehnologie Politehnica București
2011-2025
This article investigates the performance of Galileo Open Service Navigation Message Authentication (OSNMA) system in real-life environments prone to RF interference (RFI), jamming, and/or spoofing attacks. Considering existing data that indicate a relatively high number RFI- and spoofing-related incidents reported Eastern Europe, this study details data-collection campaign along various roads through urban, suburban, rural settings, mostly three border counties East South-East Romania,...
Nowadays, the flexible localization solution for various devices workplace safety is one of most demanding research questions. Notably, it expected to provide an acceptable level precision in different types environments empowered by wearable technology and Internet-of-Things (IoT) devices. Existing leading technologies are adapted certain conditions, example, Wi-Fi, Bluetooth low energy (BLE), ultra-wideband (UWB) used indoor areas global navigation satellite system (GNSS)-based ones...
Nowadays, location-enabled mobile phones are becoming more and widespread. Various players in the business forecast that, future, a significant part of total wireless revenue will come from Location-Based Services (LBS). An LBS system extracts information about user’s geographical location provides services based on positioning information. A successful service should create value for end-user, by satisfying some users’ needs or wants, at same time preserving key factors device, such as low...
Modern outdoor localization is commonly dependent on various Global Navigation Satellite Systems (GNSSs). On the other hand, they are known to be power-hungry and not suitable for resource-constrained devices currently flooding Industrial Internet of Things (IIoT). Nonetheless, some those may equipped with Low-Power Wide-Area Network (LPWAN) communication chip that could utilized positioning. Current work examines two datasets collected using LoRa Wan in Brno, Czech Republic, assess...
Modern industrial environments with automated production machinery often require special indoor positioning and localization techniques, due to the presence of objects infrastructure that may obstruct line-of-sight propagation or interfere behaviour electromagnetic waves. These challenges are difficult overcome by widely employed GNSS system designed for use in outdoor areas. One existing systems pseudolites, which transmit signals similar ones used systems. sources errors pseudolites is...
This paper describes the work for radar signal processor, core of Cheia space surveillance radar. It presents basic operation, requirements and achieved processing performance together with a description optimizations both in terms signal-to-noise ratio software processing. The Radar is financed by European Space Agency will be used tracking low Earth orbit objects refining international catalogs objects.
Galileo, the future European GNSS, is planning to transmit navigation signals in four sub-bands (E5a, E5b, E6 and E1) within L band. There are also other applications which use band worldwide, sharing spectrum with GNSS or utilizing neighboring bands. Reports of measurement campaigns have shown that unaided receivers could experience loss-of-lock near FM TV broadcast transmitters Also, surrounding area airports, VHF radionavigation systems communication can produce interference receivers....
Location Based Services (LBS) are nowadays recognized as having one of the most fast-paced developments in wireless field. The underlying location technology is still mainly based on Global Navigation Satellite Systems (GNSS), but many complementary technologies, such cellular-based location, WLAN-based and other Signal Opportunity-based rapidly trying to close remaining gaps. There a myriad potential future applications for LBS, their perceived value user not well-studied or understood....
The purpose of the paper is to present state art acquisition algorithms for GNSS signals, particularly Galileo E1, and propose a novel, resource saving method, employing circular correlation. results are compared against performances traditional method linear correlation benefits highlited.