Sökning: "multipath error"

Visar resultat 1 - 5 av 39 uppsatser innehållade orden multipath error.

1. 1. Design and Implementation of a Rocket Launcher Hybrid Navigation

   Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

   Författare :Omar Ugolini; [2023]
   Nyckelord :launch vehicle navigation; delayed Kalman filter; strapdown; navigering av bärraketer; fördröjt Kalman-filter; strapdown;

   Sammanfattning : Rocket Factory Augsburg (RFA) a German New Space Startup is developing a three-stage rocket launcher aiming at LEO/SSO orbits. A fundamental responsibility of the GNC team is the development of the rocket navigation algorithm to estimate the attitude, position, and velocity allowing the guidance and control loops to autonomously steer the rocket. LÄS MER

3. 2. Performance Evaluation of LoRa networks for Air-to-Ground Communications

   Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Kiana Khorsandi; Sareh Jalalizad; [2023]
   Nyckelord :IoT; LPWAN; LoRaWan; UAV; LAP; Bit error rate; Line of sight;

   Sammanfattning : The current focus on the Internet of Things (IoT) has led to the emergence of many network scenarios with unlimited use cases, including smart homes, smart cities, smart agriculture, and more. Unmanned aerial vehicles (UAVs), also known as drones, have become increasingly popular due to their versatility and ability to collect and transmit data through various sensors and cameras. LÄS MER

4. 3. Development of AI/ML Methods for Advanced Device Localization in Beyond 5G Systems

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Eros Iván Costa Andrés; Jon Aizkorreta Carro; [2023]
   Nyckelord :Artificial Intelligence; localization; IIoT devices; Python; radio signals; 5G; 3GPP; Technology and Engineering;

   Sammanfattning : This master thesis aims to investigate the positioning accuracy improvements of device localization by the implementation of AI/ML functionalities. In this project, we use the fifth-generation(5G) New Radio (NR) system and focus on indoor factories. LÄS MER

5. 4. Improving the Robustness of Over-the-Air Synchronization for 5G Networks in a Multipath Environment

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Anders Erninger; [2023]
   Nyckelord :Peak selection algorithms; Peak matching; Time alignment error; Over-the-air synchronization; Multipath environment; Toppvalsalgoritmer; Toppmatchning; Tidsfel; Luftburen synkronisation; Flervägsmiljö;

   Sammanfattning : Synchronization between base stations is a fundamental part of any operating telecommunication system. With 5G and future generations of mobile networks, the data speeds are getting higher, which creates the need for fast and accurate synchronization. In wireless systems, the transmitted signals are affected by the environment. LÄS MER

7. 5. RayTracing Analysis and Simulator Design of Unmanned Aerial Vehicle Communication and Detection System in Urban Environment

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Jie Huang; [2022]
   Nyckelord :Drone detection; phased array; angle of arrival; MUltiple SIgnal Classification; raytracing; reflection; diffraction; Drönardetektering; fasad array; ankomstvinkel; MUltiple SIgnal Classification; raytracing; reflektion; diffraktion;

   Sammanfattning : In recent years, unmanned aerial vehicles (UAV), also called drones, have experienced a rapid increase, which leads to the concern of illegal use of them. Passive RF is one of the effective ways to detect drones by receiving drones’ communication signals. LÄS MER