Essays about: "Linear frequency modulation"

Showing result 1 - 5 of 17 essays containing the words Linear frequency modulation.

1. 1. Improving the experimental setup for ultrasound-optical tomography imaging

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Ibtisam Dahir Ahmed; [2023]
   Keywords : Ultrasound-optical tomography UOT ; thulium-doped lithium niobate;

   Abstract : According to Bröstcancer förbundet, mammography is not efficient at detecting tumors in dense breast tissue or diagnosing breast cancer at its early stages. Ultrasound-optical tomography (UOT) is an imaging technique in development and has the potential for deep-tissue imaging. READ MORE

3. 2. RF Compressor (SLED) Phase-Modulation to Reduce Peak Fields in the MAX IV Linear Accelerator

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Joel Ekström; [2023]
   Keywords : Accelerator; MAX IV; LINAC; Phase-modulation; SLED; Pulse compression; Technology and Engineering;

   Abstract : Modern particle accelerators need strong electric fields in order to produce high energy particles. Such high voltages are typically reached by injecting pulsed radio frequency power through several steps of amplification. At the end, pulse compression is used to further improve the energy gain at the cost of pulse-length. READ MORE

4. 3. Validation of the attitude control of KNATTE with flexible appendages

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Christoffer Johansson; [2022]
   Keywords : KNATTE; flexible appendages; control; SMC; LQG; PWM; PWPF;

   Abstract : The effect of flexible panels on a spacecraft during attitude movement may induce problems if not correctly accounted for in the control system for the spacecraft. The aim of this thesis is to find and evaluate, control algorithms that could be suitable for the Kinesthetic Node and Autonomous Table-Top Emulator (KNATTE) with two flexible mock-up solar panels during an attitude movement of 20 degrees. READ MORE

5. 4. Continuous Control SetModel Predictive Control of Permanent Magnet Synchronous Motor

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

   Author : Prithivirajan Subramaniyane; [2022]
   Keywords : Interior permanent magnet synchronous motor; Continuous control set-Model predictive control; Linear quadratic regulator; Quadratic programming; Interior permanent magnet synchronous motor; Continuous control set-Model predictive control; Linear quadratic regulator; Quadratic programming;

   Abstract : The thesis provides design methods for developing Continuous Control SetModel Predictive Control and Linear Quadratic Regulator for Interior mounted Permanent Magnet Synchronous Motor drive. The software for these controllers are implemented in the prototype motor at China Euro Vehicle Technology (CEVT) to estimate the computation time. READ MORE

6. 5. Hybrid Coupler for LMBA Input Match Using an Active Inductor

   University essay from Linköpings universitet/Elektroniska Kretsar och System

   Author : Karthik Doddanna; [2021]
   Keywords : LMBA; gyrator-c; active inductor; hybrid coupler; TSMC 0.18um.;

   Abstract : With the increase in demand for compact and high data rate communication systems, there is a need for high efficiency with modulated signals (PAPR 5-10 dB) for base-station power amplifiers. One of the famous architectures used to achieve this is Doherty architecture. READ MORE