Sökning: "cross-correlation"

Visar resultat 1 - 5 av 52 avhandlingar innehållade ordet cross-correlation.

  1. 1. A Cross-Correlator for the Remote Sensing of Earth by Synthetic Aperture

    Författare :Erik J Ryman; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cross-correlation; synthetic aperture; ASIC; VLSI.; earth observation;

    Sammanfattning : In light of our changing climate and the unpredictability of severe weather; a better understanding of our climate and increased weather forecast accuracy are in high demand. Humidity and temperature distribution profiles with high temporal resolution can significantly increase our knowledge of highly dynamic weather phenomena and improve weather forecasts. LÄS MER

  2. 2. Cross-Correlator Implementations Enabling Aperture Synthesis for Geostationary-Based Remote Sensing

    Författare :Erik J Ryman; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; full-custom; signal processing; synthetic aperture; Cross-correlation; interferometric imaging; ASIC; remote sensing;

    Sammanfattning : An ever-increasing demand for weather prediction and high climate modelling accuracy drives the need for better atmospheric data collection. These demands include better spatial and temporal coverage of mainly humidity and temperature distributions in the atmosphere. LÄS MER

  3. 3. Droplet Velocities in a Liquid Spray

    Författare :Andreas Cronhjort; KTH; []
    Nyckelord :Liquid spray; diesel spray; droplet velocities; droplet sizes; sprayvisualization; sliced spray; particle image velocimetry; spectrum; cepstrum; cross-correlation; auto-correlation;

    Sammanfattning : A method to look into a dense liquid spray has beenevaluated. The spray was mechanically sliced to remove theobscuring parts of it, thus gaining optical access to theinternal regions and thereby allowing for visualization ofpreviously unavailable parts of the spray. LÄS MER

  4. 4. Geometry, Mechanics and Transmissivity of Rock Fractures

    Författare :Flavio Lanaro; KTH; []
    Nyckelord :anisotropy; angularity; anti-persistence; aperture; channelling; closure; contact area; contact mechanics; cross-correlation; deformability; dilation; flow; fractals; fracture; joint; laboratory; modelling; normal loading; persistence; power spectra; ;

    Sammanfattning : .... LÄS MER

  5. 5. Sar Remote Sensing of Sea Ice: Towards automatic extraction of geophysical information

    Författare :Yan Sun; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; classification; deformation; SAR; segmentation; cross-correlation; rotation; optical flow; motion detection;

    Sammanfattning : Synthetic Aperture Radar (SAR) images from the ERS-1 satellite have great potential for sea ice remote sensing due to its independence of daylight and clouds. The very high data rate of SAR (over 100 million bits per second) results in an enormous volume of data that threatens the ability of human interpreters. LÄS MER