Sökning: "analoga signaler"
Visar resultat 1 - 5 av 22 uppsatser innehållade orden analoga signaler.
1. Current-Mode Class D Power Amplifier for 2.4GHz Wi-Fi
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Modern wireless communication techniques employed in the Wi-Fi® protocol, such as orthogonal frequency-division multiplexing exhibit analogue signals with high peak-to-average power ratio. Therefore, power amplifiers for Wi-Fi suffer from low efficiency when operating in back-off mode, away from their maximum efficiency at peak power. LÄS MER
2. Antenna as a sensor for sensing available LTE networks
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : This thesis primarily deals with the concept of designing an antenna based device to harvest energy from Radio Frequency (RF) and using the harvested energy to sense the available Long Term Evolution (LTE) network in order for the Internet of Things (IoT) devices to connect to the network for the purpose of transmitting and receiving data. Secondarily the importance of this project is targeting how to conserve battery power in an IoT device and extend it’s lifetime. LÄS MER
3. Design and Verification of An Energy-Efficient Edge-Pursuit Comparator
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : With the rapid development of mobile communication, sensors, and biomedical in recent years, the demand for accurate data information, highquality audio and image has become much more significant, which requires a high-precision Analog to Digital Converter (ADC) to process weak analog signals. As one of the core modules of ADC, the comparator’s precision, speed, stability, and noise play a key role in the performance of the whole circuit. LÄS MER
4. Digital signalbehandling i realtid; en jämförelse mellan CPU och GPU : Brusfiltrering av ljudsignal med hjälp av FFT
Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Over the past 40 years, music production has evolved from being an analog process to a digital one. Analog instruments and filtering of signals have been complimented and partially replaced by digital instruments and filters in the form of software. LÄS MER
5. III-V Nanowire MOSFETs for mm-Wave Switch Applications
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : RF-switches are key components in many electronic devices as they enable routing of higher frequency signals. Increasing demands on device performance requires new technologies as well as new approaches to designs of circuits. III-V nanowire MOSFETs are a promising device technology well suited for implementation of switches. LÄS MER
