Sökning: "low spurious"
Visar resultat 1 - 5 av 12 uppsatser innehållade orden low spurious.
1. A Novel Method for Measuring Low Energy Excitations with BLS
L3-uppsats, Uppsala universitet/MaterialfysikSammanfattning : 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. LÄS MER
2. Developing a portable, customizable, single-channel EEG device for homecare and validating it against a commercial EEG device
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : 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. LÄS MER
3. Estimating the relative phase-difference in EEG using the matched phase reassigned cross-spectrogram
Master-uppsats, Lunds universitet/Matematisk statistikSammanfattning : 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. LÄS MER
4. Design of a 16 GSps RF Sampling Resistive DAC with on-chip Voltage Regulator
Master-uppsats, Linköpings universitet/Elektroniska Kretsar och SystemSammanfattning : 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. LÄS MER
5. Modelling of passive intermodulation in RF systems
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : 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. LÄS MER