{"id":171,"date":"2024-07-22T20:16:56","date_gmt":"2024-07-22T11:16:56","guid":{"rendered":"https:\/\/u.muroran-it.ac.jp\/imrsl\/?page_id=171"},"modified":"2024-10-12T20:55:06","modified_gmt":"2024-10-12T11:55:06","slug":"research","status":"publish","type":"page","link":"https:\/\/u.muroran-it.ac.jp\/imrsl\/research","title":{"rendered":"\u7814\u7a76\u7d39\u4ecb\/Research"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Lab mission<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/10\/\u7de8\u96c6\u5f8c-16-1024x683.jpg\" alt=\"\" class=\"wp-image-312\" style=\"width:610px;height:auto\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/10\/\u7de8\u96c6\u5f8c-16-1024x683.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/10\/\u7de8\u96c6\u5f8c-16-300x200.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/10\/\u7de8\u96c6\u5f8c-16-768x512.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/10\/\u7de8\u96c6\u5f8c-16-1536x1024.jpg 1536w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/10\/\u7de8\u96c6\u5f8c-16-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"479\" height=\"415\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r1.png\" alt=\"\" class=\"wp-image-169\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r1.png 479w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r1-300x260.png 300w\" sizes=\"(max-width: 479px) 100vw, 479px\" \/><\/figure>\n\n\n\n<p>\u672c\u7814\u7a76\u5ba4\u3067\u306f\u5408\u6210\u958b\u53e3\u30ec\u30fc\u30c0\uff08SAR\uff09\u306b\u3088\u308b\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\uff0c\u707d\u5bb3\u76e3\u8996\u30fb\u30a4\u30f3\u30d5\u30e9\u76e3\u8996\u3092\u884c\u3046\u624b\u6cd5\u306e\u7814\u7a76\u958b\u767a\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u7279\u306b\uff0c\u300c\u5b87\u5b99\u30fb\u5730\u4e0a\u300d\u304b\u3089\u306e\u4e21\u9818\u57df\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u3092\u5229\u7528\u3057\u305f\u8907\u5408\u30ea\u30e2\u30fc\u30c8\u30bb\u30f3\u30b7\u30f3\u30b0\u306e\u793e\u4f1a\u5b9f\u88c5\u3092\u63a8\u9032\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u304c\u4e3b\u8981\u306a\u6d3b\u52d5\u5185\u5bb9\u3067\u3059\u3002\u3053\u308c\u3089\u793e\u4f1a\u5b9f\u88c5\u3092\u901a\u3058\u3066\u8a08\u6e2c\u7cbe\u5ea6\u3084\u52b9\u7387\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u958b\u767a\u3092\u884c\u3063\u3066\u307e\u3059\u3002<\/p>\n\n\n\n<p>Our laboratory is engaged in the research and development of methods for analyzing data from Synthetic Aperture Radar (SAR) for disaster monitoring and infrastructure monitoring. In particular, we are performing the societal implementation of&nbsp; both &#8220;space and ground&#8221; SAR domains. The main activities in our lab are as follows. Through these societal implementations, we develop algorithms to enhance measurement accuracy and efficiency.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u885b\u661fSAR\u306b\u3088\u308b\u30a4\u30f3\u30c9\u30cd\u30b7\u30a2\u71b1\u5e2f\u6ce5\u70ad\u5730\u8a08\u6e2c \/ Tropical peatland monitoring in Indonesia by spaceborne SAR<\/li>\n\n\n\n<li>\u885b\u661fSAR\u306b\u3088\u308b\u30a4\u30f3\u30d5\u30e9\u8a08\u6e2c \/ Infrastructure monitoring by spaceborne SAR<\/li>\n\n\n\n<li>\u885b\u661fSAR\u306b\u3088\u308b\u5730\u6ed1\u308a\u8a08\u6e2c \/ Landslide monitoring by spaceborne SAR<\/li>\n\n\n\n<li>\u5730\u4e0a\u8a2d\u7f6e\u578bSAR\u306b\u3088\u308b\u5730\u6ed1\u308a\u8a08\u6e2c \/ Landslide monitoring by ground-based SAR<\/li>\n\n\n\n<li>\u5730\u4e0a\u8a2d\u7f6e\u578bSAR\u306b\u3088\u308b\u30a4\u30f3\u30d5\u30e9\u8a08\u6e2c \/ Infrastructure monitoring by ground-based SAR<\/li>\n\n\n\n<li>\u5730\u4e0a\u8a2d\u7f6e\u578bSAR\u306b\u3088\u308b\u7a4d\u96ea\u8a08\u6e2c \/ Snow parameter retrieval by ground-based SAR<\/li>\n\n\n\n<li>\u30c9\u30ed\u30fc\u30f3\u642d\u8f09SAR\u306e\u958b\u767a \/ Development of drone-borne SAR<\/li>\n<\/ul>\n\n\n\n<p>SAR\u306f\u96e2\u308c\u305f\u5834\u6240\u304b\u3089\u5bfe\u8c61\u306b\u96fb\u6ce2\u3092\u7167\u5c04\u3057\uff0c\u53cd\u5c04\u6ce2\u3092\u89e3\u6790\u3057\u3066\u5bfe\u8c61\u3092\u753b\u50cf\u5316\uff08\u4e8c\u6b21\u5143\uff0c\u4e09\u6b21\u5143\u8a08\u6e2c\uff09\u3059\u308b\u6280\u8853\u3067\u3059\u3002\u5f97\u3089\u308c\u305f\u30c7\u30fc\u30bf\u3092\u6642\u7cfb\u5217\u89e3\u6790\u3059\u308b\u3053\u3068\u3067\uff0c\u5730\u8868\u306e\u52d5\u304d\uff08\u5909\u4f4d\uff09\u3092\u5b9a\u91cf\u7684\u304b\u3064\u9762\u7684\u306b\u9ad8\u7cbe\u5ea6\u3067\u8a08\u6e2c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\uff0c\u3053\u308c\u306f\u30a4\u30f3\u30d5\u30e9\u70b9\u691c\uff0c\u706b\u5c71\u89b3\u6e2c\uff0c\u5730\u6bbb\u5909\u52d5\u306a\u3069\uff0c\u69d8\u3005\u306a\u5834\u9762\u3067\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>SAR (Synthetic Aperture Radar) is a technology that produces 2D or 3D image of the target with the radar technology. By performing time-series analysis on the obtained data, it is possible to measure surface movements (displacement) with high accuracy and in a spatially comprehensive manner. This is utilized in various fields such as infrastructure inspection, volcano monitoring, and crustal deformation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Development and implementation of GB-SAR<\/h2>\n\n\n\n<p>\u885b\u661fSAR\u306f\u5e83\u7bc4\u56f2\u306e\u89b3\u6e2c\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u304c\uff0c\u885b\u661f\u306e\u56de\u5e30\u65e5\u6570\u306b\u7269\u7406\u7684\u306a\u9650\u754c\u304c\u3042\u308b\u305f\u3081\u89b3\u6e2c\u9593\u9694\u306f\u6570\u65e5\u30ab\u30f3\u30c8\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u306b\u4e4f\u3057\u304f\uff0c\u7dca\u6025\u6642\u306e\u6a5f\u52d5\u7684\u306a\u89b3\u6e2c\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\uff0c\u885b\u661f\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3060\u3051\u3067\u306a\u304f\uff0cUAV\u3084\u5730\u4e0a\u30bb\u30f3\u30b5\u3068\u3057\u3066SAR\u6280\u8853\u3092\u5229\u7528\u3059\u308b\u3068\u3044\u3063\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u7814\u7a76\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5730\u4e0a\u8a2d\u7f6e\u578bSAR\u306f\u30ec\u30fc\u30eb\u306e\u4e0a\u3092\u30a2\u30f3\u30c6\u30ca\u304c\u8d70\u67fb\u3059\u308b\u3053\u3068\u3067\u753b\u50cf\u3092\u5f97\u308b\u30bb\u30f3\u30b7\u30f3\u30b0\u6280\u8853\u3067\u3059\u3002\u7814\u7a76\u5ba4\u304c\u6709\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u306f\u304a\u3088\u305d10\u79d2\u306b\u4e00\u679a\u753b\u50cf\u3092\u53d6\u5f97\u3067\u304d\u308b\u305f\u3081\u6e96\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u8a08\u6e2c\u304c\u53ef\u80fd\u3067\u3059\u3002\u672c\u7814\u7a76\u5ba4\u3067\u306fGB-SAR\u3092\u5229\u7528\u3057\u3066\u81ea\u7136\u659c\u9762\u8a08\u6e2c\u3084\u30a4\u30f3\u30d5\u30e9\u8a08\u6e2c\u306a\u3069\u3092\u5b9f\u65bd\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>Spaceborne SAR can provide wide-area observation data, but due to the limitations of satellite revisit times, the observation intervals span several days, lacking real-time capabilities and making it difficult to conduct agile observations during emergencies. Therefore, approaches utilizing SAR technology not only from satellite platforms but also from UAVs and ground sensors are being studied. Ground-based SAR (GB-SAR) is a sensing technology that obtains images by scanning an antenna over a linear rail. The GB-SAR system in our laboratory can acquire an image approximately every 10 seconds, allowing for near real-time measurement. Our laboratory conducts measurements of natural slopes and infrastructure using GB-SAR.<\/p>\n\n\n\n<div class=\"swell-block-columns\" data-valign=\"center\"><div class=\"swell-block-columns__inner\">\n<div class=\"swell-block-column swl-has-mb--s\" data-valign=\"center\">\n<figure class=\"wp-block-video\"><video height=\"480\" style=\"aspect-ratio: 720 \/ 480;\" width=\"720\" controls muted src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/R2.webm\" playsinline><\/video><figcaption class=\"wp-element-caption\">Video on GB-SAR measurement<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large is-resized u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"767\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r3-1024x767.jpg\" alt=\"\" class=\"wp-image-158\" style=\"width:414px;height:auto\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r3-1024x767.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r3-300x225.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r3-768x575.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r3-1536x1150.jpg 1536w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r3.jpg 1652w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Developed Circularly polarized GB-SAR<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n\n\n\n<p>\u73fe\u5728\uff0c\u30ad\u30e3\u30f3\u30d1\u30b9\u5468\u8fba\u306e\u30ec\u30fc\u30c0\u753b\u50cf\u3092\uff15\u5206\u9593\u9694\u3067\u9023\u7d9a\u7684\u306b\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002\u3059\u3067\u306b\uff11\u5e74\u4ee5\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u96c6\u3081\u3066\u304a\u308a\uff0c\u964d\u96e8\u3084\u964d\u96ea\uff0c\u6c17\u6e29\u5909\u5316\u304cGB-SAR\u8a08\u6e2c\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u7b49\u3092\u8abf\u67fb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>Currently, we are continuously acquiring radar images around the University campus at 5-minute intervals. We have already collected seasonal data and are investigating the effects of rainfall, snowfall, and temperature changes on GB-SAR measurements.<\/p>\n\n\n\n<div class=\"swell-block-columns\"><div class=\"swell-block-columns__inner\">\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"553\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r14-1024x553.jpg\" alt=\"\" class=\"wp-image-176\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r14-1024x553.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r14-300x162.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r14-768x415.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r14.jpg 1343w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">GB-SAR system installed at rooftop of campus building<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"397\" height=\"339\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r15.png\" alt=\"\" class=\"wp-image-177\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r15.png 397w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r15-300x256.png 300w\" sizes=\"(max-width: 397px) 100vw, 397px\" \/><figcaption class=\"wp-element-caption\">GB-SAR image acquired by installed GB-SAR<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"585\" height=\"439\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r16.jpg\" alt=\"\" class=\"wp-image-178\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r16.jpg 585w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r16-300x225.jpg 300w\" sizes=\"(max-width: 585px) 100vw, 585px\" \/><figcaption class=\"wp-element-caption\">Monitoring under snow<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"500\" height=\"376\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r17.jpg\" alt=\"\" class=\"wp-image-179\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r17.jpg 500w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r17-300x226.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Snow parameter ground truth collection<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n\n\n\n<p>\u73fe\u5834\u306b\u5229\u7528\u53ef\u80fd\u306a\u96fb\u6e90\u304c\u306a\u3044\u5834\u5408\uff0c\u6570\u9031\u9593\u3054\u3068\u306b\u5358\u767a\u7684\u306b\u89b3\u6e2c\u3092\u884c\u3046\u300c\u975e\u9023\u7d9a\u89b3\u6e2c\u300d\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u9577\u671f\u306e\u5730\u6ed1\u308a\u8a08\u6e2c\u306a\u3069\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u307e\u305f\uff0c\u690d\u751f\u306b\u8986\u308f\u308c\u3066\u3044\u308b\u7b87\u6240\u306f\u8a08\u6e2c\u304c\u56f0\u96e3\u306a\u305f\u3081\u30b3\u30fc\u30ca\u30ea\u30d5\u30ec\u30af\u30bf\u306a\u3069\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u3067\u8a08\u6e2c\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>In cases where no power source is available on-site, we conduct \u201ddiscontinuous observations&#8221; every few weeks. This allows for long-term measurements of landslides and other phenomena. Additionally, since areas covered with vegetation are difficult to measure, we install corner reflectors to facilitate the measurements.<\/p>\n\n\n\n<div class=\"swell-block-columns\"><div class=\"swell-block-columns__inner\">\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large is-resized u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r4-1024x682.jpg\" alt=\"\" class=\"wp-image-159\" style=\"width:414px;height:auto\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r4-1024x682.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r4-300x200.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r4-768x512.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r4-1536x1023.jpg 1536w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r4.jpg 1648w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r5-1024x682.jpg\" alt=\"\" class=\"wp-image-160\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r5-1024x682.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r5-300x200.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r5-768x512.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r5-1536x1023.jpg 1536w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r5.jpg 1648w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\" style=\"--clmn-w--pc:100%\">\n<p class=\"has-text-align-center\"><span class=\"swl-fz u-fz-xs\">Landslide measurement by GB-SAR<\/span><\/p>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\" style=\"--clmn-w--pc:100%\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"283\" height=\"377\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r6.jpg\" alt=\"\" class=\"wp-image-161\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r6.jpg 283w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r6-225x300.jpg 225w\" sizes=\"(max-width: 283px) 100vw, 283px\" \/><figcaption class=\"wp-element-caption\">Corner reflector installation over vegetated area<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Development and implementation of MIMO radar<\/h2>\n\n\n\n<p>\u30ec\u30fc\u30eb\u3068\u4e00\u4f53\u3068\u306a\u3063\u305fGB-SAR\u30b7\u30b9\u30c6\u30e0\u306f\u6a5f\u68b0\u7684\u306a\u79fb\u52d5\u3092\u4f34\u3046\u3053\u3068\u304b\u3089\u4e00\u679a\u306e\u753b\u50cf\u53d6\u5f97\u306b\u6570\u79d2\u7a0b\u5ea6\u8981\u3057\u307e\u3059\u3002\u3053\u308c\u3067\u306f\u5bfe\u8c61\u306e\u632f\u52d5\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\uff0c\u632f\u52d5\u8a08\u6e2c\u3092\u5fc5\u8981\u3068\u3059\u308b\u30a4\u30f3\u30d5\u30e9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u305f\u3081\uff0c\u305d\u3082\u305d\u3082\u30ec\u30fc\u30eb\u3092\u4f7f\u7528\u305b\u305a\u306bSAR\u753b\u50cf\u3092\u53d6\u5f97\u3067\u304d\u308bMIMO(Multiple-Input and Multiple-Output)\u578b\u30ec\u30fc\u30c0\u306e\u958b\u767a\u30fb\u793e\u4f1a\u5b9f\u88c5\u3092\u884c\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>The GB-SAR system integrated with rails involves mechanical movement, taking several seconds to acquire a single image. This makes it impossible to capture the vibration information of the target. Therefore, for infrastructure monitoring that requires vibration measurement, we are developing and implementing a MIMO (Multiple-Input and Multiple-Output) radar that can acquire SAR images without using rails.<\/p>\n\n\n\n<div class=\"swell-block-columns\"><div class=\"swell-block-columns__inner\">\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"505\" height=\"379\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r7.jpg\" alt=\"\" class=\"wp-image-162\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r7.jpg 505w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r7-300x225.jpg 300w\" sizes=\"(max-width: 505px) 100vw, 505px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r8-1024x768.jpg\" alt=\"\" class=\"wp-image-163\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r8-1024x768.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r8-300x225.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r8-768x576.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r8.jpg 1158w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\" style=\"--clmn-w--pc:100%\">\n<p class=\"has-text-align-center\"><span class=\"swl-fz u-fz-xs\">MIMIO radar system in our laboratory<\/span><\/p>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\" style=\"--clmn-w--pc:100%\">\n<figure class=\"wp-block-image size-large u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"494\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r18-1024x494.jpg\" alt=\"\" class=\"wp-image-184\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r18-1024x494.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r18-300x145.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r18-768x371.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r18.jpg 1069w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Illustration of displacement monitoring by MIMO radar<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n\n\n\n<p>MIMO\u30ec\u30fc\u30c0\u306b\u3088\u308a\u6a4b\u6881\u306a\u3069\u306e\u793e\u4f1a\u30a4\u30f3\u30d5\u30e9\u306e\u632f\u52d5\u3092\u8a08\u6e2c\u3059\u308b\u3053\u3068\u3067\uff0c\u5185\u90e8\u52a3\u5316\u3092\u8a3a\u65ad\u3059\u308b\u6280\u8853\u3092\u958b\u767a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>We are developing technology to diagnose internal deterioration by measuring the vibrations of social infrastructure, such as bridges, using MIMO radar.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"303\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r9-1024x303.png\" alt=\"\" class=\"wp-image-164\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r9-1024x303.png 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r9-300x89.png 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r9-768x227.png 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r9-1536x454.png 1536w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r9-2048x606.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"swell-block-columns\"><div class=\"swell-block-columns__inner\">\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r10-1024x683.jpg\" alt=\"\" class=\"wp-image-165\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r10-1024x683.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r10-300x200.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r10-768x512.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r10.jpg 1260w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">MIMO\u30ec\u30fc\u30c0\u306b\u3088\u308b\u5927\u578b\u540a\u308a\u6a4b\u306e\u8a08\u6e2c\u5b9f\u9a13<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"891\" height=\"630\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r11.png\" alt=\"\" class=\"wp-image-166\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r11.png 891w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r11-300x212.png 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r11-768x543.png 768w\" sizes=\"(max-width: 891px) 100vw, 891px\" \/><figcaption class=\"wp-element-caption\">SAR\u753b\u50cf\u306e\u4f8b<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Development of Drone-borne SAR<\/h2>\n\n\n\n<p>\u30ec\u30fc\u30c0\u3092\u30c9\u30ed\u30fc\u30f3\u306b\u642d\u8f09\u3057SAR\u30a4\u30e1\u30fc\u30b8\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u3067\uff0c\u7dca\u6025\u6642\u6a5f\u52d5\u7684\u306b\u5e83\u7bc4\u56f2\u306e\u8a08\u6e2c\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7814\u7a76\u5ba4\u3067\u306f\u30c9\u30ed\u30fc\u30f3SAR\u306e\u958b\u767a\u304b\u3089\uff0c\u30a4\u30e1\u30fc\u30b8\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u958b\u767a\uff0c\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30ed\u30e1\u30c8\u30ea\u624b\u6cd5\u306e\u958b\u767a\u306a\u3069\u3092\u9032\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>By mounting a radar onto a drone (UAV), it is possible to perform wide-area measurements quickly and efficiently in emergency situations. Our lab is developing drone-borne SAR systems, its imaging algorithms, and its interferometric techniques.<\/p>\n\n\n\n<div class=\"swell-block-columns\"><div class=\"swell-block-columns__inner\">\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-full u-lb-off\"><img decoding=\"async\" width=\"303\" height=\"329\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r12.jpg\" alt=\"\" class=\"wp-image-167\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r12.jpg 303w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r12-276x300.jpg 276w\" sizes=\"(max-width: 303px) 100vw, 303px\" \/><figcaption class=\"wp-element-caption\">Drone-borne SAR flight test<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"swell-block-column swl-has-mb--s\">\n<figure class=\"wp-block-image size-large is-resized u-lb-off\"><img decoding=\"async\" width=\"1024\" height=\"767\" src=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r13-1024x767.jpg\" alt=\"\" class=\"wp-image-168\" style=\"width:414px;height:auto\" srcset=\"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r13-1024x767.jpg 1024w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r13-300x225.jpg 300w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r13-768x576.jpg 768w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r13-1536x1151.jpg 1536w, https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-content\/uploads\/2024\/07\/r13.jpg 1728w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Developed drone-borne SAR system<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lab mission \u672c\u7814\u7a76\u5ba4\u3067\u306f\u5408\u6210\u958b\u53e3\u30ec\u30fc\u30c0\uff08SAR\uff09\u306b\u3088\u308b\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\uff0c\u707d\u5bb3\u76e3\u8996\u30fb\u30a4\u30f3\u30d5\u30e9\u76e3\u8996\u3092\u884c\u3046\u624b\u6cd5\u306e\u7814\u7a76\u958b\u767a\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u7279\u306b\uff0c\u300c\u5b87\u5b99\u30fb\u5730\u4e0a\u300d\u304b\u3089\u306e\u4e21\u9818\u57df\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u3092\u5229\u7528\u3057\u305f\u8907\u5408\u30ea\u30e2\u30fc\u30c8\u30bb\u30f3\u30b7\u30f3\u30b0\u306e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"swell_btn_cv_data":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-171","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/pages\/171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/comments?post=171"}],"version-history":[{"count":13,"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/pages\/171\/revisions"}],"predecessor-version":[{"id":318,"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/pages\/171\/revisions\/318"}],"wp:attachment":[{"href":"https:\/\/u.muroran-it.ac.jp\/imrsl\/wp-json\/wp\/v2\/media?parent=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}