Essays about: "AoA"

Showing result 1 - 5 of 31 essays containing the word AoA.

1. 1. Wall-Resolved and Wall-Modelled LES for a NACA4412 Wing Profile in OpenFOAM

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Nikolaos Charisoudis; [2024]
   Keywords : ;

   Abstract : The purpose of this study is to perform computational fluid dynamics (CFD) simulationfor an incompressible flow around an airfoil and investigate the aerodynamicproperties for different Reynolds numbers (400, 000 and 1, 000, 000) based on the chordlength, at the moderate angle of attack (AoA) of 5o . For this purpose a detailedevaluation of wall-resolved and wall-modelled large-eddy simulations (LES) wereconducted for the NACA4412 wing profile. READ MORE

3. 2. Airspeed estimation of aircraft using two different models and nonlinear observers

   University essay from Linköpings universitet/Fordonssystem

   Author : Alexander Roser; Anton Thunberg; [2023]
   Keywords : sensor fusion; flight mechanics; Kalman filter; extended Kalman filter; unscented Kalman filter; pitot tube; airspeed estimation; simulation;

   Abstract : When operating an aircraft, inaccurate measurements can have devastating consequences. For example, when measuring airspeed using a pitot tube, icing effects and other faults can result in erroneous measurements. READ MORE

4. 3. Offline Direction Clustering of Overlapping Radar Pulses from Homogeneous Emitters

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Sofia Bedoire; [2022]
   Keywords : Clustering; DBSCAN; Deinterleaving; Machine Learning; Radar; Klustring; DBSCAN; Pulssortering; Maskininlärning; Radar;

   Abstract : Within the defence industry, it is essential to be aware of threats in the environment. A potential threat can be detected by identifying certain types of emitters in the surroundings that are typically used in the enemies’ systems. READ MORE

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

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

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

   Abstract : 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. READ MORE

6. 5. Populating a Database to be used with an Indoor Positioning System

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Maria Halvarsson; Jinglan Qin; [2022]
   Keywords : Indoor positioning system; Bluetooth Low Energy; Relational database; AWS cloud services; Indoor asset tracking; Indoor navigation; Indoor localization; Database design; Inomhuspositioneringssystem; Bluetooth Low Energy; Relationsdatabas; AWS molntjänster; Tillgångsspårning; Inomhusnavigering; Inomhuslokalisering; Databasdesign;

   Abstract : Indoor Positioning System (IPS) are becoming more common in many areas such as retail, warehouses, smart facilities, and manufacturing.In recent years, Bluetooth Low Energy (BLE)-based IPS has become increasingly popular due to its low cost and low energy consumption. One of the more recent updates, Bluetooth 5. READ MORE