Sökning: "radar"

Visar resultat 16 - 20 av 327 avhandlingar innehållade ordet radar.

  1. 16. Robust Transceiver Design and Waveform Synthesis for Wideband MIMO Radar

    Författare :Marie Ström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wideband radar; Robust analysis; Interference; Waveform synthesis; Transmit–receive filter design; MIMO radar;

    Sammanfattning : This thesis deals with the problem of designing and synthesizing waveforms that are optimal, both in a signal-to-noise-and-interference ratio (SNIR), and in a system hardware design perspective, i.e., to synthesize time domain waveforms with a low peak-to-average power ratio (PAPR), or even constant modulus. LÄS MER

  3. 17. Efficient parallell architectures for future radar signal processing

    Författare :Anders Åhlander; John L. Gustafson; Högskolan i Halmstad; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Computer architecture; radar signal processing; space-time adaptive processing; synthetic aperture radar; parallel processing; engineering efficiency; Computer science; Datalogi;

    Sammanfattning : The processing demands on future embedded radar signal processors may stretch to several trillions of floating-point operations per second (TFLOPS). This is an increase of two to three orders of magnitude realtive to the requirements of today. Still, the tight size and power constraints are unchanged. LÄS MER

  4. 18. Coherent CO2 laser radar in active imaging systems

    Författare :Dietmar Letalick; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Q-switching; atmospheric turbulence; coherent laser radar; terrain segmentation; heterodyne detection; range-based object detection; imaging laser radar; co2 laser;

    Sammanfattning : .... LÄS MER

  5. 19. Signal Processing Techniques for Detection of Buried Landmines using Ground Penetrating Radar

    Författare :Håkan Brunzell; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; landmines; detection; feature extraction; impulse radar; ground penetrating radar; classification;

    Sammanfattning : The present thesis deals with the problem of detecting and classifying buried objects. The application in mind when addressing this problem is the detection of buried landmines. According to the International Committee of the Red Cross, about 100 million landmines are buried in 62 countries around the world. LÄS MER

  7. 20. Human Detection and Tracking with UWB radar

    Författare :Melika Hozhabri; Maria Lindén; Nikola Petrovic; Martin Ekström; Robin Augustine; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; UWB radar; signal processing; human detection; elektronik; Electronics;

    Sammanfattning : As robots and automated machineries are increasingly replacing the manual operations, protecting humans who are working in collaboration with these machines is becoming an increasingly important task. Technologies such as cameras, infra-red and seismic sensors as well as radar systems are used for presence detection and localization of human beings. LÄS MER