Search Results - "Cemin Zhang"

  • Showing 1 - 20 results of 20
Refine Results
  1. 1

    Investigation of High-Accuracy Indoor 3-D Positioning Using UWB Technology by Mahfouz, M.R., Cemin Zhang, Merkl, B.C., Kuhn, M.J., Fathy, A.E.

    “…There are many challenges in building an ultra-wideband (UWB) indoor local positioning system for high-accuracy applications. These challenges include reduced…”
    Get full text
    Journal Article
  2. 2

    Real-Time Noncoherent UWB Positioning Radar With Millimeter Range Accuracy: Theory and Experiment by Cemin Zhang, Kuhn, M.J., Merkl, B.C., Fathy, A.E., Mahfouz, M.R.

    “…In this paper, we propose a novel architecture for ultra-wideband (UWB) positioning systems, which combines the architectures of carrier-based UWB systems and…”
    Get full text
    Journal Article
  3. 3

    Performance Enhancement of a Sub-Sampling Circuit for Ultra-Wideband Signal Processing by Cemin Zhang, Fathy, A.E., Mahfouz, M.

    “…An ultra-wideband (UWB) sampling mixer has been developed based on utilizing the combined advantages of two known circuit topologies: a wideband balun and a…”
    Get full text
    Journal Article
  4. 4

    A System-Level Simulation Framework for UWB Localization by Kuhn, M J, Mahfouz, M R, Zhang, C, Merkl, B C, Fathy, A E

    “…In this paper we present a comprehensive simulation framework that can accurately simulate our indoor UWB positioning system including the analog front-ends,…”
    Get full text
    Journal Article
  5. 5

    Development of an UWB Indoor 3D Positioning Radar with Millimeter Accuracy by Cemin Zhang, Kuhn, M., Merkl, B., Mahfouz, M., Fathy, A.E.

    “…A high resolution ultra wideband (UWB) positioning radar system based on time difference of arrival (TDOA) has been developed. The UWB radar system provides…”
    Get full text
    Conference Proceeding
  6. 6

    A system level design approach to UWB localization by Kuhn, M.J., Cemin Zhang, Song Lin, Mahfouz, M.R., Fathy, A.E.

    “…We have developed a novel UWB positioning system with millimeter range 3D accuracy. It is difficult to comprehensively simulate a system of this nature since…”
    Get full text
    Conference Proceeding
  7. 7

    Real-time noncoherent UWB positioning radar with millimeter range accuracy in a 3D indoor environment by Cemin Zhang, Kuhn, M., Fathy, A.E., Mahfouz, M.

    “…In this work, we have successfully developed a stand-alone system for positioning both static and dynamic targets in an indoor environment with approximately 2…”
    Get full text
    Conference Proceeding
  8. 8

    Development of an ultra-wideband elliptical disc planar monopole antenna with improved omni-directional performance using a modified ground by Cemin Zhang, Fathy, A.E.

    “…A planar monopole antenna has many attractive features such as a simple structure, exhibition of ultra-wideband characteristics, and a near omni-directional…”
    Get full text
    Conference Proceeding
  9. 9

    High accuracy UWB localization in dense indoor environments by Kuhn, M., Cemin Zhang, Merkl, B., Depeng Yang, Yazhou Wang, Mahfouz, M., Fathy, A.

    “…UWB communication and localization systems have many inherent advantages for robust performance in dense, indoor multipath environments. Although UWB systems…”
    Get full text
    Conference Proceeding
  10. 10

    UWB antipodal vivaldi antennas with protruded dielectric rods for higher gain, symmetric patterns and minimal phase center variations by Elsherbini, A., Cemin Zhang, Song Lin, Kuhn, M., Kamel, A., Fathy, A.E., Elhennawy, H.

    “…In this paper, the authors proposed a technique to improve the gain, narrow the H-plane beamwidth, and minimize the phase center variations with frequency by…”
    Get full text
    Conference Proceeding
  11. 11

    Development of an ultra wideband Vivaldi antenna array by Yunqiang Yang, Cemin Zhang, Song Lin, Fathy, A.E.

    “…We have developed a 1/spl times/16 sub-array antenna structure for ultra wideband applications such as see-through-walls imaging radar. The utilized single…”
    Get full text
    Conference Proceeding
  12. 12

    Planar antipodal Vivaldi antenna array configuration for low cross-polarization and reduced mutual coupling performance by Cemin Zhang, Kuhn, M., Mahfouz, M., Fathy, A.E.

    “…Investigations of various antipodal Vivaldi antenna array configurations have been carried out. Based on this study, it has been demonstrated that planar…”
    Get full text
    Conference Proceeding
  13. 13

    Notch bandwidth and filter order trade-offs in band-notched monopole antennas for UWB applications by Elsherbini, A., Cemin Zhang, Fathy, A.E., Mahfouz, M.

    “…In this paper, we have optimized the performance of both the slot notched and compact coplanar waveguide (CRW) cell (CRCC) notched monopoles to eliminate the…”
    Get full text
    Conference Proceeding
  14. 14
  15. 15

    Reconfigurable Pico-Pulse Generator for UWB Applications by Zhang, C., Fathy, A.E.

    “…We have designed, fabricated, and tested a low cost tunable narrow pico-pulse generator using a 60ps transition time step-recovery diode (SRD) device. Both the…”
    Get full text
    Conference Proceeding
  16. 16

    Low-inertial IR controlled circuits in 110- 130 GHz range based on dielectric image guides by Gigoyan, S., Melikyan, A., Wilson, J., Song Lin, Cemin Zhang, Fathy, A.E.

    “…We have experimentally studied various circuit elements in the 110-130 GHz frequency band based on dielectric image lines (DIL) that are optically controlled…”
    Get full text
    Conference Proceeding
  17. 17

    Investigation of pulse dispersion in a carrier-based UWB system with LO leakage cancellation by Zhang, Cemin, Elsherbini, Adel, Fathy, Aly E., Mahfouz, Mohamed

    “…Local oscillator (LO) leakage in a carrier‐based ultrawideband (UWB) system is a major design concern. In many cases, mixer LO‐RF isolation is not sufficient…”
    Get full text
    Journal Article
  18. 18

    Accurate UWB indoor localization system utilizing time difference of arrival approach by Zhang, C., Kuhn, M., Merkl, B., Fathy, A.E., Mahfouz, M.

    “…An accurate ultra wideband (UWB) localization approach has been developed based on time difference of arrival (TDOA). This method provides sub-cm accuracy,…”
    Get full text
    Conference Proceeding
  19. 19

    Real-time UWB indoor positioning system with millimeter 3-D dynamic accuracy by Kuhn, M., Zhang, C., Mahfouz, M., Fathy, A.E.

    “…A real-time UWB positioning system has been developed which has dynamic 3D accuracy of better than 6 mm and static 3D accuracy of 3-4 mm. This accuracy is an…”
    Get full text
    Conference Proceeding
  20. 20

    Optimization of cascode CMOS low noise amplifier using inter-stage matching network by Zhang, C., Huang, D., Lou, D.

    “…The traditional cascode structure of CMOS low noise amplifier (LNA) is considered as a two-stage amplifier and inter-stage matching network is introduced…”
    Get full text
    Conference Proceeding