{"id":2101,"date":"2026-10-27T11:19:40","date_gmt":"2026-10-27T10:19:40","guid":{"rendered":"https:\/\/au.feri.um.si\/losdv\/projekti\/georadar-eksplozivi\/"},"modified":"2026-10-28T09:38:27","modified_gmt":"2026-10-28T08:38:27","slug":"georadar-eksplozivi","status":"publish","type":"page","link":"https:\/\/au.feri.um.si\/losdv\/en\/projekti\/georadar-eksplozivi\/","title":{"rendered":"Searching for buried explosives from the air"},"content":{"rendered":"<section class=\"wp-block-group alignfull au-section au-section--dark au-projhero is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group au-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"au-back wp-block-paragraph\"><a href=\"\/losdv\/en\/#iz-nasega-dela\">\u2190 Projects and theses<\/a><\/p>\n\n\n<p class=\"au-eyebrow wp-block-paragraph\">01.2 \u00b7 Research project \u00b7 NATO SPS<\/p>\n\n\n<h1 class=\"wp-block-heading\">Searching for buried explosives from the air<\/h1>\n\n\n<p class=\"au-lead wp-block-paragraph\">A miniature ground-penetrating radar on an unmanned aerial vehicle flies over the terrain and reveals objects below the surface.<\/p>\n\n\n<div class=\"hero-media\">\n      <figure class=\"video-box\">\n        <video src=\"\/losdv\/wp-content\/uploads\/sites\/4\/2026\/10\/prelet.drona_.mp4\" autoplay muted loop playsinline preload=\"auto\" aria-label=\"Video: a drone with a GPR flies over a meadow; below, the radargram forms with a hyperbola above the buried object.\"><\/video>\n        <figcaption class=\"mono\">Video \u00b7 drone flight and live radargram<\/figcaption>\n      <\/figure>\n      <div class=\"anim-box\">\n        <canvas id=\"anim\" aria-label=\"Animation: a hexacopter with a GPR flies over terrain above a buried mine; column by column the radargram shows the ground reflection and a hyperbola with multiple reflections whose apex marks the mine&#039;s position.\"><\/canvas>\n        <div class=\"anim-cap mono\"><span>Illustration \u00b7 how a hyperbola forms in the radargram<\/span><button class=\"anim-toggle\" type=\"button\">Stop<\/button><\/div>\n      <\/div>\n    <\/div>\n<\/div>\n<\/section>\n\n\n\n<section class=\"wp-block-group alignfull au-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group au-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns au-projbody is-layout-flex wp-container-core-columns-is-layout-89c98654 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<h2 class=\"wp-block-heading\">About the project<\/h2>\n\n\n<p class=\"wp-block-paragraph\">A miniature ground-penetrating radar on an unmanned aerial vehicle. SAR and microwave tomography reveal the shape and size of a buried object, and machine learning classifies it.<\/p>\n\n\n<p class=\"wp-block-paragraph\">The project develops advanced imaging techniques with ground-penetrating radar (GPR) using miniature, lightweight radar devices on unmanned aerial vehicles. Microwave tomography provides additional information on the object's shape, size and dielectric permittivity, but requires multiple measurements. We consider two cases: a single vehicle carrying the transmitter and receiver (multi-monostatic mode), and two vehicles carrying the transmitter and receiver in bistatic mode.<\/p>\n\n\n<h2 class=\"wp-block-heading\">How it works<\/h2>\n\n\n<ol class=\"wp-block-list au-steps\">\n<li><strong>Flight<\/strong>: an unmanned aerial vehicle with a GPR flies over the area and collects reflections from the ground.<\/li>\n\n\n<li><strong>SAR imaging and microwave tomography<\/strong> reconstruct a subsurface image from the measurements; polarimetric properties help describe the objects.<\/li>\n\n\n<li><strong>Machine learning<\/strong> analyses the radar data and detects and classifies buried objects.<\/li>\n<\/ol>\n<\/div>\n\n\n<div class=\"wp-block-column au-facts is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-table au-facts__table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Type<\/td><td>Research project<\/td><\/tr><tr><td>Programme<\/td><td>NATO SPS (Science for Peace and Security)<\/td><\/tr><tr><td>Field<\/td><td>Radar signal processing<\/td><\/tr><tr><td>Sensor<\/td><td>Miniature ground-penetrating radar (GPR) on a UAV<\/td><\/tr><tr><td>Methods<\/td><td>SAR, microwave tomography, polarimetry, machine learning<\/td><\/tr><tr><td>Modes<\/td><td>Multi-monostatic, bistatic<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aef85313d0a6&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aef85313d0a6\" class=\"wp-block-image size-full wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"\/losdv\/wp-content\/uploads\/sites\/4\/2026\/07\/research2.png\" alt=\"Georadar na brezpilotnem letalniku\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n<p class=\"au-textlink wp-block-paragraph\"><a href=\"https:\/\/www.mdpi.com\/2072-4292\/16\/21\/3931\" target=\"_blank\" rel=\"noreferrer noopener\">Read the article in MDPI \u2197<\/a><\/p>\n<\/div>\n<\/div>\n\n\n<div class=\"wp-block-group au-projsec is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Laboratory measurement: a buried mine<\/h2>\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center au-projsplit is-layout-flex wp-container-core-columns-is-layout-89c98654 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:45%\">\n<figure class=\"lab-video\">\n          <video src=\"\/losdv\/wp-content\/uploads\/sites\/4\/2026\/10\/zakopana.mina_.mp4\" muted loop playsinline preload=\"metadata\" data-autoplay aria-label=\"Video: the GPR antennas move over a sandbox with a buried mine; below, the radargram forms.\"><\/video>\n          <div class=\"wm-cover\" aria-hidden=\"true\">LOSDV \u00b7 GPR<\/div>\n        <\/figure>\n<\/div>\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:55%\">\n<p class=\"wp-block-paragraph\">Before field flights we test the methods in the laboratory. The GPR antennas move over a sandbox with a buried mine, and the lower part of the video shows the radargram in real time.<\/p>\n\n\n<p class=\"wp-block-paragraph\">The upper horizontal lines are the reflection from the sand surface. As the antennas approach the mine, a characteristic hyperbola appears \u2013 its apex lies exactly above the object, and its curvature depends on the wave velocity in the ground.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n<div class=\"wp-block-group au-projnav is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"\/losdv\/en\/projekti\/zaznava-dronov\/\"><span>\u2190 Previous<\/span>Detection of unmanned aerial vehicles<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/losdv\/en\/projekti\/gpr-metode\/\"><span>Next \u2192<\/span>Methods for detecting buried objects<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>\u2190 Projekti in zaklju\u010dna dela 01.2 \u00b7 Raziskovalni projekt \u00b7 NATO SPS Iskanje zakopanih eksplozivov iz zraka Miniaturni georadar na brezpilotnem letalniku preleti teren in razkrije predmete pod povr\u0161ino. Posnetek \u00b7 prelet drona in sprotni radargram Ponazoritev \u00b7 kako nastane hiperbola v radargramuUstavi O projektu Miniaturni georadar na brezpilotnem letalniku. Tehniki SAR in mikrovalovne tomografije [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2098,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"page-brez-naslova","meta":{"footnotes":""},"class_list":["post-2101","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/2101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/comments?post=2101"}],"version-history":[{"count":2,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/2101\/revisions"}],"predecessor-version":[{"id":2128,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/2101\/revisions\/2128"}],"up":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/2098"}],"wp:attachment":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/media?parent=2101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}