Sökning: "error recovery"

Visar resultat 21 - 25 av 70 avhandlingar innehållade orden error recovery.

1. 21. Aspects of Power Consumption in Coherent Fiber-Optical Communication Systems

   Författare :Lars Lundberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical frequency comb; Fiber-optical communication; power consumption; carrier-recovery; Raman amplification; energy-efficiency; optical amplifier; digital signal processing; coherent detection; erbium-doped fiber amplifier; phase-tracking;

   Sammanfattning : The power consumption of coherent fiber-optical communication systems is becoming increasingly important, for both environmental and economical reasons. The data traffic on the Internet is increasing at a faster pace than that at which optical network equipment is becoming more energy efficient, which means that the overall power consumption of the Internet is increasing. LÄS MER

3. 22. Self-calibration and direct georeferencing in terrestrial laser scanning

   Författare :Yuriy Reshetyuk; Lars E. Sjöberg; Milan Horemuz; Hansjörg Kutterer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; terrestrial laser scanning; self-calibration; direct georeferencing; error sources; Surveying; Lantmäteri;

   Sammanfattning : An important step in data processing from terrestrial laser scanning (TLS) is georeferencing, i.e. transformation of the scanner data (point clouds) into a real world coordinate system, which is important for their integration with other geospatial data. LÄS MER

4. 23. Interdomain Traffic Engineering and Faster Restoration in Optical Networks

   Författare :Americo Francisco Muchanga; Björn Pehrson; Lena Wosinska; Fredrik Orava; Mouftah Hussein; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Interdomain Routing; Network Recovery; Restoration in Optical Networks; Optics; Optik;

   Sammanfattning : Internet traffic has surpassed voice traffic and is dominating in transmission networks. The Internet Protocol (IP) is now being used to encapsulate various kinds of services. The new services have different requirements than the initial type of traffic that was carried by the Internet network and IP. LÄS MER

5. 24. Iatrogenic Vascular Injuries

   Författare :Håkan Rudström; Martin Björck; David Bergqvist; Carl Magnus Wahlgren; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; vascular injuries; vascular surgery; vascular trauma; injury; medical error; patient safety; postoperative death; postoperative mortality; patient insurance; varicose veins; Kirurgi; Surgery;

   Sammanfattning : Iatrogenic vascular injuries (IVIs) and injuries associated with vascular surgery can cause severe morbidity and death. The aims of this thesis were to study those injuries in the Swedish vascular registry (Swedvasc), the Swedish medical injury insurance where insurance claims are registered, the Population and Cause of death registries, and in patient records, in order to explore preventive strategies. LÄS MER

7. 25. Optical Performance Monitoring in Digital Coherent Communications: Intelligent Error Vector Magnitude Estimation

   Författare :Yuchuan Fan; Oskars Ozolins; Xiaodan Pang; Aleksejs Udalcovs; Sergei Popov; Marco Ruffini; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics; Fysik;

   Sammanfattning : The rapid development of data-driven techniques brings us new applications, such asfifth-generation new radio (5G NR), high-definition video, Internet of things (IoT),etc., which has greatly facilitated our daily lives. LÄS MER