Sökning: "digital topology"

Visar resultat 6 - 10 av 57 avhandlingar innehållade orden digital topology.

  1. 6. Topology Optimization for Wave Propagation Problems

    Författare :Eddie Wadbro; Martin Berggren; Steven J. Cox; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Scientific Computing; Beräkningsvetenskap;

    Sammanfattning : This thesis considers topology optimization methods for wave propagation problems. These methods make no a priori assumptions on topological properties such as the number of bodies involved in the design. The performed studies address problems from two different areas, acoustic wave propagation and microwave tomography. LÄS MER

  3. 7. Custom Datapaths for DSP ASICs Methodology and Implementation

    Författare :Pontus Åström; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Elektroteknik; handshake circuits; design patterns; design abstraction; design methodology; UMTS; interleaver architecture; Turbo decoder implementation; low power; Digital filter; wave digital filter;

    Sammanfattning : This thesis regards datapath design and analysis at several abstraction levels. Five papers are presented that focus on datapath design for mobile communication systems and design methodologies for such datapaths. Paper I discusses different aspects of Turbo channel decoder design for high speed and low power applications. LÄS MER

  4. 8. Studies on Selected Topics in Radio Frequency Digital-to-Analog Converters

    Författare :Mohammad Reza Sadeghifar; Jacob Wikner; Adam Strak; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DAC; Telecommunication; Semi-digital FIR filter; RF DAC; Sigma Delta Modulator; DDFS;

    Sammanfattning : The network latency in fifth generation mobile technology (5G) will be around one millisecond which is much lower than in 4G technology. This significantly faster response time together with higher information capacity and ultra-reliable communication in 5G technology will pave the way for future innovations in a smart and connected society. LÄS MER

  5. 9. Implementation of Flash Analog-to-Digital Converters in Silicon-on-Insulator CMOS Technology

    Författare :Erik Säll; Mark Vesterbacka; Bengt E. Jonsson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; analog-to-digital converters; ADC; silicon-on-insulator; SOI; Electronics; Elektronik;

    Sammanfattning : A 130 nm partially depleted silicon-on-insulator (SOI) complementary metal oxide semiconductor (CMOS) technology is evaluated with respect to analog circuit implementation. We perform the evaluation through implementation of three flash analog-to-digital converters (ADCs). LÄS MER

  7. 10. Novel Materials and Implant Designs for the Treatment of Degenerative Disc Disease

    Författare :Salim Ghandour; Cecilia Persson; Donal McNally; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Topology Optimization; Spine; Intervertebral Disc; Papain; Additive Manufacturing; Biomechanics; Bone Cement; PMMA; Calcium Phosphate; Cage; Fusion; Engineering Science with specialization in Biomedical Engineering; Teknisk fysik med inriktning mot medicinsk teknik;

    Sammanfattning : The overarching objective of this thesis was to develop intervertebral implants for degenerated discs through design, fabrication, and mechanical validation. The research had four primary aims, each addressing different facets of implant development. LÄS MER