Essays about: "low spurious"

Showing result 1 - 5 of 12 essays containing the words low spurious.

1. 1. A Novel Method for Measuring Low Energy Excitations with BLS

   University essay from Uppsala universitet/Materialfysik

   Author : Christopher Borchert; [2024]
   Keywords : ;

   Abstract : This report presents the work done on an optical setup combining Raman and BLS spectroscopy and discusses the achieved improvements of the system. After some general optimization and minor redesigning, a new alternative beam path was implemented. READ MORE

3. 2. Developing a portable, customizable, single-channel EEG device for homecare and validating it against a commercial EEG device

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

   Author : Máté Károly Tóth; [2023]
   Keywords : Electroencephalography EEG ; Portable EEG; Single-channel EEG; Commercial EEG; Brain-machine interface; Prototype development; Elektroencefalografi EEG ; Bärbar EEG; Enkanaligt EEG; Kommersiellt EEG; Hjärna-maskin-gränssnitt; Prototyputveckling;

   Abstract : There are several commercial electroencephalography (EEG) devices on the market; however, affordable devices are not versatile for diverse research applications. The purpose of this project was to investigate how to develop a low-cost, portable, single-channel EEG system for a research institute that could be used for neurofeedback-related applications in homecare. READ MORE

4. 3. Estimating the relative phase-difference in EEG using the matched phase reassigned cross-spectrogram

   University essay from Lunds universitet/Matematisk statistik

   Author : Maria Åkesson; [2021]
   Keywords : Mathematics and Statistics;

   Abstract : In brain connectivity research the relative phase between two EEG oscillations is particularly relevant, as it could provide information about the conduction delay between two regions. However, due to EEG signals containing large amounts of noise and spurious connections, the relative phase is seldom estimated. READ MORE

5. 4. Design of a 16 GSps RF Sampling Resistive DAC with on-chip Voltage Regulator

   University essay from Linköpings universitet/Elektroniska Kretsar och System

   Author : Pontus Thomsson; Cyrus Seyed Aghamiri; [2021]
   Keywords : DAC; LDO; RDAC; 16GSps; 12-bit; Digital-to-Analog Converter; Low-Dropout Regulator;

   Abstract : Wireless communication technologies continue to evolve to meet the demand for increased data throughput. To achieve higher data throughput one approach is to increase the bandwidth. One problem related to very large bandwidths is the implementation of digital-to-analog converters with sampling rates roughly in the 5 to 20 GHz range. READ MORE

6. 5. Modelling of passive intermodulation in RF systems

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

   Author : Martin Petek; [2020]
   Keywords : ;

   Abstract : Modern communication systems are increasing in complexity, power and dynamicrange. As a result, weaker signals can be detected which improves rangeand quality of service. However, this also results in greater sensitivity to spurioussignals which can impact system performance. READ MORE