Sökning: "Radar antennas"

Visar resultat 6 - 10 av 44 avhandlingar innehållade orden Radar antennas.

  1. 6. A comprehensive study of resistor-loaded planar dipole antennas for ground penetrating radar applications

    Författare :Disala Uduwawala; Martin Norgren; Olav Breinbjerg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ground penetrating radar; buried object detection; dipole antennas; FDTD methods; broadband properties; baluns; simulation; optimal design; lossy media; dispersive media; clutter.; Electrical engineering; Elektroteknik;

    Sammanfattning : Ground penetrating radar (GPR) systems are increasingly being used for the detection and location of buried objects within the upper regions of the earth’s surface. The antenna is the most critical component of such a system. LÄS MER

  3. 7. Radiation and Scattering from Conformal Array Antennas

    Författare :Björn Thors; KTH; []
    Nyckelord :conformal antennas; antenna arrays; antenna radiation patterns; radar cross sections; electromagnetic scattering; UTD; moment methods; high frequency method; hybrid method; mutual coupling;

    Sammanfattning : This thesis deals with radiation and scattering fromconformal array antennas. A hybrid technique between the Methodof Moments (MoM) and different asymptotic methods is used forthe analysis, combining the accuracy of the MoM and theefficiency of the asymptotic methods. LÄS MER

  4. 8. Advanced Antenna Systems for Fully Polarimetric Radar in Automotive Scenario

    Författare :Zhaorui Zang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circular polarization; gap waveguide; Antenna; dual circular polarization; automotive radar; polarimetric radar;

    Sammanfattning : The increasing dependence on Advanced Driver Assistance Systems (ADAS) highlights the critical need for fast target recognition, effective collision avoidance, cruise control, lane assistance, etc. This necessitates a significant advancement in sensor technology, particularly for accurate target classification and road surface sensing. LÄS MER

  5. 9. Millimeter-wave Communication and Radar Sensing — Opportunities, Challenges, and Solutions

    Författare :Sining An; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dynamic; BiCMOS; OFDM; synchronization; Millimeter-wave; range accuracy; radar; communication system; micrometer; high data rate; frequency divider; wideband; phase modulated; monitoring; carrier recovery; distance measurement; mobile network; sensing; fast Fourier transformation FFT .; SiGe;

    Sammanfattning : With the development of communication and radar sensing technology, people are able to seek for a more convenient life and better experiences. The fifth generation (5G) mobile network provides high speed communication and internet services with a data rate up to several gigabit per second (Gbps). LÄS MER

  7. 10. Using multiple SIMD architectures for multi-channel radar signal processing

    Författare :Anders Åhlander; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; parrallel processing; SIMD computers; modular computers; optical communication; phased-array antennas; radar signal processing; time-determinism;

    Sammanfattning : .... LÄS MER