Essays about: "Feedback Cancellation"

Showing result 1 - 5 of 8 essays containing the words Feedback Cancellation.

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

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

   Author : Midhat Rizvi; Khaled Al-Khateeb; [2023]
   Keywords : 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;

   Abstract : 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. READ MORE

3. 2. Blind Acoustic Feedback Cancellation for an AUV

   University essay from Linköpings universitet/Reglerteknik

   Author : Hampus Frick; [2023]
   Keywords : acoustical feedback; adaptive filter; least leaky mean square; Kalman; blind source separation; independent component analysis; complex independent component analysis; degenerative unmixing estimation technique; convolutive mixture;

   Abstract : SAAB has developed an autonomous underwater vehicle that can mimic a conventional submarine for military fleets to exercise anti-submarine warfare. The AUV actively emits amplified versions of received sonar pulses to create the illusion of being a larger object. READ MORE

4. 3. Acoustic feedback suppression in audio mixer for PA applications

   University essay from Umeå universitet/Institutionen för fysik

   Author : Mattias Ekström; [2017]
   Keywords : Digital signal processing; feedback suppression;

   Abstract : When a speaker is addressing an audience, a PA system consisting of a microphone and a loudspeaker is often used. If the microphone picks up too much of the loudspeaker energy, acoustic feedback in the form of an unwanted characteristic howling can occur. READ MORE

5. 4. Optical Fiber Phase Noise Cancellation for Slow Light Crystal Cavity Locking

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Atomfysik

   Author : Mohammad Tasnimul Haque; [2016]
   Keywords : Optical Fiber; Phase Noise; Slow Light; Stabilisation; Quantum Information; Quantum Optics; Optical Clocks; Physics and Astronomy;

   Abstract : Recent developments in the field of optical clocks and quantum information have fueled the necessity for both fiber phase noise cancellation and laser stabilisation. The Quantum Information group at Lund University is conducting research on quantum computation experiments based on rare earth ion doped crystals and also application of slow light effects induced by spectral hole burning in these rare earth ion doped crystals. READ MORE

6. 5. Robust Echo-Cancellation for Simple VoIP-Applications in Embedded Systems

   University essay from Linköpings universitet/Kommunikationssystem

   Author : Anton Eriksson; [2015]
   Keywords : VoIP; Adaptive Filtering; Signal Processing;

   Abstract : Voice over IP (VoIP) is the group of techniques for delivering voice communications over Internet Protocol (IP) networks. It has mainly served as the possible substitution for regular PSTN over the last decades, but has recently gained an increased interest in various areas such as alarm applications and customer service. READ MORE