Change search
ReferencesLink to record
Permanent link

Direct link
SAR imaging with a hand-held UWB radar system
Blekinge Institute of Technology, School of Engineering.
2012 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesisAlternative title
Generering av SAR-bilder med hjälp av ett handhållet UWB-radarsystem (Swedish)
Abstract [en]

Synthetic aperture radar (SAR) systems are used extensively for imaging vast areas using electromagnetic radiation. Radar systems have the benefit of being able to image areas which optical light cannot pass through, which makes them suitable for surveillance and weather monitoring, or monitoring through difficult atmospheric conditions. This thesis investigates, based on simulation and real data, whether a hand-held radar utilizing gaussian monopulses can function as a synthetic aperture radar device, by employing standard SAR focusing and filtering algorithms. The implementation of SAR algorithms was verified by a simulation and processing program written in the C programming language, and includes a novel algorithm for simulating raw SAR data. The novel algorithm was verified by inspecting the pulse-compressed and Global Backprojection (GBP)-focused image and its two-dimensional spectrum, and compared and contrasted to images generated in standard fashion. Handheld radar measurements of corner reflectors and a large reflecting sphere processed by GBP indicated that additional pre-processing is needed for focusing to work. Pre-processing the radar data by employing a rolling calculation of background noise and its subtraction yielded filtered raw data of sufficient quality to enable azimuth focusing with GBP. In conclusion this thesis has shown the new radar imaging algorithm to work in conjunction with standard SAR processing steps if its projecting nature can be tolerated. In addition GBP has been found to be a viable algorithm for accomplishing azimuth focusing of background-filtered radar data from a handheld pulsed radar system, and that the radar system in question may be used to perform SAR imaging.

Place, publisher, year, edition, pages
2012. , 82 p.
Keyword [en]
handheld, imaging, radar, SAR
National Category
Signal Processing Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:bth-3415Local ID: diva2:830721
Available from: 2015-04-22 Created: 2012-11-08 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

fulltext(39393 kB)251 downloads
File information
File name FULLTEXT01.pdfFile size 39393 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Engineering
Signal ProcessingElectrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 251 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 58 hits
ReferencesLink to record
Permanent link

Direct link