Search Results - "Behar, Vera"

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  1. 1

    Investigation of Accuracy of TOA and SNR of Radio Pulsar Signals for Vehicles Navigation by Kabakchiev, Hristo, Behar, Vera, Kabakchieva, Dorina, Kisimov, Valentin, Stefanova, Kamelia

    Published in Sensors (Basel, Switzerland) (07-08-2023)
    “…It is known that X-ray and gamma-ray pulsars can only be observed by spacecraft because signals from these pulsars are impossible to be detected on the Earth's…”
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    Journal Article
  2. 2

    FSR Systems for Detection of Air Objects Using Cosmic Radio Emissions by Kabakchiev, Hristo, Behar, Vera, Garvanov, Ivan, Kabakchieva, Dorina, Kabakchiev, Avgust, Rohling, Hermann

    Published in Sensors (Basel, Switzerland) (11-01-2021)
    “…The paper analyses the possibility of Forward Scatter Radar (FSR) systems to detect airplanes using cosmic emission from pulsars and planets (pulsar, Sun,…”
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    Journal Article
  3. 3

    Multi-Channel Target Shadow Detection in GPS FSR by Kabakchiev, Hristo, Garvanov, Ivan, Behar, Vera, Kabakchieva, Dorina, Kabakchiev, Kalin, Rohling, Hermann, Kulpa, Krzysztof, Yarovoy, Alexander

    “…The paper offers new application of a Multi-channel Forward Scatter Radar (MFSR), which uses GPS signals for detection of air targets on their GPS radio…”
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    Journal Article
  4. 4

    Parameter Optimization of Multi-Element Synthetic Aperture Imaging Systems by Behar, Vera

    Published in Bioautomation (01-03-2007)
    “…In conventional ultrasound imaging systems with phased arrays, the further improvement of lateral resolution requires enlarging of the number of array elements…”
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    Journal Article
  5. 5

    Adaptive Phase Aberration Correction in Multi-Element Synthetic Aperture Imaging Systems by Behar, Vera

    Published in Bioautomation (01-12-2006)
    “…The problem of phase aberration correction in Multi-element Synthetic Aperture Focusing (MSAF) imaging systems is considered in this paper. In the MSAF…”
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    Journal Article
  6. 6

    Improving motion estimation by accounting for local image distortion by Behar, Vera, Adam, Dan, Lysyansky, Peter, Friedman, Zvi

    Published in Ultrasonics (01-10-2004)
    “…Cardiac elastography is a useful diagnostic technique for detection of heart function abnormalities, based on analysis of echocardiograms. The analysis of the…”
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    Journal Article
  7. 7

    Analysis and Optimization of Medical Ultrasound Imaging Using the Effective Aperture Approach by Nikolov, Milen, Behar, Vera

    Published in Bioautomation (01-12-2005)
    “…An effective aperture approach is used as a tool for analysis and parameter optimization of mostly known ultrasound imaging systems - phased array systems,…”
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    Journal Article
  8. 8

    Parameter optimization of pulse compression in ultrasound imaging systems with coded excitation by Behar, Vera, Adam, Dan

    Published in Ultrasonics (01-08-2004)
    “…A linear array imaging system with coded excitation is considered, where the proposed excitation/compression scheme maximizes the signal-to-noise ratio (SNR)…”
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    Journal Article
  9. 9

    The combined effect of spatial compounding and nonlinear filtering on the speckle reduction in ultrasound images by Adam, Dan, Beilin-Nissan, Simona, Friedman, Zvi, Behar, Vera

    Published in Ultrasonics (01-02-2006)
    “…Recently, a spatial compounding ultrasound imaging method was presented that utilizes a conventional 64-element phased array transducer with two unfocused…”
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    Journal Article
  10. 10

    Optimization of sparse synthetic transmit aperture imaging with coded excitation and frequency division by Behar, Vera, Adam, Dan

    Published in Ultrasonics (01-12-2005)
    “…An effective aperture approach is used for optimization of a sparse synthetic transmit aperture (STA) imaging system with coded excitation and frequency…”
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    Journal Article
  11. 11

    Techniques for phase correction in coherent ultrasound imaging systems by Behar, Vera

    Published in Ultrasonics (01-08-2002)
    “…The problem of phase aberrations modeled as a near field thin phase screen is considered. Here three new techniques for phase aberration correction are…”
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    Journal Article
  12. 12

    A new method of spatial compounding imaging by Behar, Vera, Adam, Dan, Friedman, Zvi

    Published in Ultrasonics (01-07-2003)
    “…A new method of spatial compound imaging is presented that improves image quality without the usual requirement to decrease the frame rate. The new method of…”
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    Journal Article
  13. 13
  14. 14

    The combined effect of nonlinear filtration and window size on the accuracy of tissue displacement estimation using detected echo signals by Behar, Vera, Adam, Dan, Lysyansky, Peter, Friedman, Zvi

    Published in Ultrasonics (01-03-2004)
    “…In cardiac elastography, the regional strain and strain rate imaging is based on displacement estimation of tissue sections within the heart muscle carried out…”
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    Journal Article
  15. 15

    Air Object Detection Using Pulsar FSR by Kabakchiev, Hristo, Behar, Vera, Garvanov, Ivan, Kabakchieva, Dorina, Kabakchiev, Avgust, Rohling, Herman, Bentum, Mark, Fernandes, Jorge

    “…One possible algorithm of signal processing for airplane detection and parameters estimation using pulsar Forward Scattering Radar (FSR) is proposed. The…”
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    Conference Proceeding
  16. 16

    Airplane Detection by FSR using cosmic radio emissions by Kabakchiev, Hristo, Behar, Vera, Garvanov, Ivan, Kabakchieva, Dorina, Kabakchiev, Avgust, Petrov, Nikola, Rohling, Herman, Bentum, Mark

    Published in 2020 IEEE Radar Conference (RadarConf20) (21-09-2020)
    “…The paper analyses and compares the possibility for airplanes detection by a FSR system that exploits radio emission from such cosmic bodies as Moon, Sun and…”
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    Conference Proceeding
  17. 17

    Air Target Detection in Pulsar FSR System by Kabakchiev, Hristo, Behar, Vera, Garvanov, Ivan, Kabakchieva, Dorina, Garvanova, Magdalena, Rohling, Herman

    “…In this paper, one possible algorithm for air target detection and velocity estimation in a pulsar FSR system is proposed. In this processing algorithm, one…”
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    Conference Proceeding
  18. 18

    The Study of Possibility for Airplane Detection Using a Solar FSR System by Kabakchiev, Hristo, Behar, Vera, Garvanov, Ivan, Kabakchieva, Dorina, Kabakchiev, Avgust, Rohling, Herman, Bentum, Mark, Fernandes, Jorge

    “…The article analyses the possibility for survemance airplanes by using solar radio emission in a forward scatter radar system. It's estimated as the magnitude…”
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    Conference Proceeding
  19. 19

    Target Detection Using a GPS Forward-Scattering Radar by Garvanov, Ivan, Kabakchiev, Christo, Behar, Vera, Garvanova, Magdalena

    “…The Global Positioning System (GPS) allows the accurate positioning of an object using satellite signals. There are a lot of applications of this technology in…”
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    Conference Proceeding
  20. 20

    Comparative analysis of object shadows obtained by GPS and sound signals by Garvanov, Ivan, Dimitrov, Kalin, Behar, Vera, Kabakchiev, Hristo

    Published in 2017 Signal Processing Symposium (SPSympo) (01-09-2017)
    “…The paper explores the shadows created by moving humans in two types of Forward Scatter (FS) systems, which use GPS signals and sound signals. The comparative…”
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    Conference Proceeding