Sökning: "Fast Backprojection"

Hittade 4 uppsatser innehållade orden Fast Backprojection.

  1. 1. Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Omer Elhag; [2012]
    Nyckelord :Bi-static SAR; Fast Backprojection; Global Backprojection; monostatic SAR; SAR image processing; Synthetic Aperture Radar; time domain algorithms; Ultra Wide-beam; UWB Bistatic SAR.;

    Sammanfattning : Synthetic Aperture Radar (SAR) plays a significant role in geophysical studies and remote sensing applications. SAR inherits the benefits of imaging RADAR over the other optical sensors such as working in all weather conditions and working independently of sunlight. LÄS MER

  3. 2. RFI Suppression in Low Frequency UWB SAR Using the RLS Algorithm

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Khan Fazal Ullah; [2010]
    Nyckelord :Aperture; Adaptive Line Enhancement ALE ; Chirp signal; Global BackProjection GBP ; Pulse compression; Radio Frequency Interference RFI ; Synthetic Aperture Radar SAR ; UltraWide Band UWB ;

    Sammanfattning : Synthetic Aperture Radar (SAR) has many applications within ground image sensing and navigation. UltraWide Band(UWB) SAR operating at Ultra High Frequency /Very High Frequency(UHF/VHF) are usually a ffected by the Radio Frequency Interferences(RFI) from civilian communication bands which causes SIR(Signal to Interference Ratio) to go down. LÄS MER

  4. 3. Study of the Local Backprojection Algorithm for Image Formation in Ultra Wideband Synthetic Aperture Radar

    Master-uppsats, Blekinge Tekniska Högskola/Avdelningen för telekommunikationssystem

    Författare :Ishtiaque Ahmed; [2008]
    Nyckelord :SAR; LBP; UWB; Subimage; Subaperture; Image formation; Backprojection;

    Sammanfattning : The purpose of this thesis project is to study and evaluate a UWB Synthetic Aperture Radar (SAR) data image formation algorithm, that was previously less familiar and, that has recently got much attention in this field. Certain properties of it made it acquire a status in radar signal processing branch. LÄS MER

  5. 4. A Study of Fast Backprojection Algorithm for UWB SAR and a Comparison between Fast- and Global Backprojection

    Master-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Författare :Hawa Yves; [2008]
    Nyckelord :Synthetic Aperture Radar; Ultra Wide-band; time-domain algorithms; Global Backprojection; Fast Backprojection; SAR image processing; interpolation techniques.;

    Sammanfattning : In this thesis, we present a study of the Fast Backprojection (FBP) known to be a fast time-domain algorithm for image retrieval in Synthetic Aperture Radar (SAR). As a time domain algorithm, FBP possesses inherent advantages such as perfect motion compensation, unlimited scene size, wide bandwidth and ability to handle long integration angles. LÄS MER