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Multi-band and dual-polarised ultra-wide band horn antenna for landmine detection using ground penetrating radar technique

Amiri, AD; (2016) Multi-band and dual-polarised ultra-wide band horn antenna for landmine detection using ground penetrating radar technique. Doctoral thesis , UCL (University College London). Green open access

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Abstract

Anti-Personnel (AP) and Anti-Vehicle (AV) landmines are considered as a problem of global proportions and it is estimated that about 60-70 million landmines are scattered within at least 70 countries all over the world. Many of the landmines are made with minimum metal content so that certain detection methods, such as metal detectors, often tend to fail. A promising concept for the detection of buried non-metallic objects is Ground Penetrating Radar (GPR). Although GPR has shown some promising results, the diversity and complexity of the problem inflict certain challenges on the operation of GPR systems. The investigations discussed in this thesis cover important aspects of GPR with particular focus on design of a new Ultra-Wideband (UWB) antenna. A systematic approach is adopted to show the GPR modelling process, and understanding the fundamental principles of GPR technology. The resolution of GPR highlights the importance of operating bandwidth. RF characterisation of materials is another aspect of GPR that will be addressed by the measurement of the relative permittivity of the materials. A novel multifunctional, multi-channel antenna design is proposed to enable the investigation of multiband imaging technique in GPR. The antenna is fabricated and the experimental measurements verify the performance of the designed antenna. The GPR results of 3D printed landmine models and real landmines in various environmental conditions have confirmed, the detection capability of the designed antenna. The GPR results of the landmines have also been investigated to study characteristic signatures of the landmines under certain system parameters.

Type: Thesis (Doctoral)
Title: Multi-band and dual-polarised ultra-wide band horn antenna for landmine detection using ground penetrating radar technique
Event: UCL (University College London)
Open access status: An open access version is available from UCL Discovery
Language: English
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
URI: http://discovery.ucl.ac.uk/id/eprint/1507968
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