Sökning: "RF interference"

Visar resultat 1 - 5 av 31 uppsatser innehållade orden RF interference.

1. 1. Digital Front End Algorithms for Sub-Band Full Duplex

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Midhat Rizvi; Khaled Al-Khateeb; [2023]
   Nyckelord :Adjacent Channel Leakage Ratio; Bit Error Rate; Clipping and Filtering; Crest Factor Reduction; Digital front end; Digital Pre-Distortion Error Vector Magnitude; Frequency Division Duplex; Power Amplifier; Peak to Average Power Ratio; Peak Cancellation Crest Factor Reduction; Sub Band Full Duplex; Self-Interference Cancellation; Signal-to-Interference Noise Ratio; Signal-to-Noise Ratio; Turbo Clipping; Time Division Duplex; Technology and Engineering;

   Sammanfattning : Sub-band full duplex is a new communication scheme technology, where a single frequency band is partitioned into sub-bands for downlink (DL) and up-link(UL) transmissions, and both can take place simultaneously. The idea behind the sub-band full duplex development is to improve the throughput, and coverage and reduce the latency of the UL communication by allowing the UL reception during the DL transmission. LÄS MER

3. 2. Backscatter Communications for 6G

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Lakshmi Rajeev Cheekati; Jin Yan; [2022]
   Nyckelord :Technology and Engineering;

   Sammanfattning : The success of future Internet of Things (IoT) depends on, among the other things, developing energy-effcient communication techniques that can enable information exchange among billions of IoT devices with ultra-low/zero power consumption requirements. Ambient backscatter communications is an emerging technology, which utilizes the ambient Radio Frequency (RF) signal as the carrier to reduce the form-factor, and the battery requirements of low-cost small sensor type communication devices. LÄS MER

4. 3. Birefringence: Effects and Implications on In-Ice Radio Detection of High-Energy Neutrinos

   Master-uppsats, Uppsala universitet/Högenergifysik

   Författare :Nils Heyer; [2022]
   Nyckelord :Birefringence; Cosmic Neutrinos; In-ice radio propagation;

   Sammanfattning : The detection of high-energy neutrinos in the EeV range requires new detection techniques to cope with the small expected flux. The radio detection method, utilizing Askaryan emission, can be used to detect these neutrinos in polar ice. LÄS MER

5. 4. 2D Orientation Estimation Using Machine Learning With Multiple 5G Base Stations

   Master-uppsats, Linköpings universitet/Reglerteknik; Linköpings universitet/Tekniska fakulteten

   Författare :Jianxin Qu; Nikil Johny Kunnappallil; [2022]
   Nyckelord :;

   Sammanfattning : Localization of mobile devices has implications on a multitude of use cases such as estimating the location of the user originating an emergency call, localization of devices to enable autonomous operation required by industrial Internet of Things (IoT) use cases, etc. In futuristic use cases such as Augmented Reality (AR), Virtual Reality (VR), Extended Reality (XR), autonomous navigation of Unmanned Aerial Vehicles (UAVs), we will require the capability of estimating orientation in addition to position of such devices for efficient and effective provisioning of these services to the end-users. LÄS MER

7. 5. Evaluation of Discrete-Time Wideband Receivers for NB-IoT

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Magnus Wasting; [2021]
   Nyckelord :Discrete; time; filter; NB-IoT; Charge; Sharing; CMOS; Technology and Engineering;

   Sammanfattning : A receiver that covers several RF bands requires multiple front-end filters which increases the cost in terms of components and/or board/silicon area. Front-end filters assist a receiver to withstand interference at multiples of its down-conversion frequency. LÄS MER