Deprem Sonras\u0131 G\u00f6\u00e7\u00fck Alt\u0131 Canl\u0131 Tespiti i\u00e7in Yapay Zeka Tabanl\u0131 Frekans-Ad\u0131ml\u0131 Multistatik Geni\u015f Bantl\u0131 Radar Yakla\u015f\u0131m\u0131 isimli projemizde ilk 12 ayl\u0131k d\u00f6nemde a\u015fa\u011f\u0131daki i\u015fler tamamlanm\u0131\u015ft\u0131r:<\/p>\n\n\n\n
Geni\u015f Bantl\u0131 Verici Anten ve Al\u0131c\u0131 Konformal Dizi Anten A\u011f\u0131 Tasar\u0131m\u0131<\/strong><\/strong><\/p>\n\n\n\n Radar sisteminin verici anteni olarak piramit formunda, do\u011frusal kutuplamal\u0131, \u00e7ift-\u00e7\u0131k\u0131nt\u0131l\u0131 horn antenin (Double-Ridged Horn Antenna-DRHA) kullan\u0131lmas\u0131 uygun g\u00f6r\u00fclm\u00fc\u015ft\u00fcr. Hem yatay hem de d\u00fc\u015fey do\u011frultuda lineer polarizasyon i\u00e7in \u00e7ift \u00e7\u0131k\u0131nt\u0131 ve besleme 90 derece d\u00f6nd\u00fcr\u00fclerek horn anten d\u00f6rt \u00e7\u0131k\u0131nt\u0131l\u0131 hale (Quadrature-Ridged Horn Antenna-QRHA) d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015ft\u00fcr. Frekans ad\u0131ml\u0131 radar 150-650 MHZ band\u0131nda \u00e7al\u0131\u015facakt\u0131r. Bu sebeple QRHA yap\u0131s\u0131 bu frekans aral\u0131\u011f\u0131nda d\u00fc\u015f\u00fck yans\u0131ma karakteristi\u011fi ile \u00e7al\u0131\u015facak \u015fekilde tasarlanm\u0131\u015ft\u0131r. \u00c7ift \u00e7\u0131k\u0131nt\u0131 yap\u0131s\u0131n\u0131n kullan\u0131lmas\u0131 ile antenin fiziksel boyutunu artt\u0131rmadan alt kesim frekans\u0131n\u0131 d\u00fc\u015f\u00fcrme imk\u00e2n\u0131 elde edilmi\u015ftir. QRHA ile g\u00f6\u00e7\u00fck b\u00f6lgesi ayd\u0131nlat\u0131lacakt\u0131r. G\u00f6\u00e7\u00fc\u011f\u00fcn \u00e7ok kay\u0131pl\u0131 bir ortam olmas\u0131 sebebiyle kayb\u0131 en aza indirmek i\u00e7in verici antenin g\u00f6\u00e7\u00fc\u011fe yak\u0131n mesafede konumland\u0131r\u0131lmas\u0131 gerekmektedir. Fiziksel boyut ve zay\u0131flama kriterlerini g\u00f6z \u00f6n\u00fcnde bulundurarak verici QRHA\u2019n\u0131n direk olarak g\u00f6\u00e7\u00fc\u011fe \u0131\u015f\u0131ma yapacak \u015fekilde konumland\u0131r\u0131lmas\u0131 uygun g\u00f6r\u00fclm\u00fc\u015ft\u00fcr. G\u00f6\u00e7\u00fc\u011fe \u0131\u015f\u0131ma a\u00e7\u0131kl\u0131kta \u00e7oklu yans\u0131malara sebebiyet verecektir. Hava ortam\u0131ndan toprak ortam\u0131na ge\u00e7i\u015fte olu\u015facak yans\u0131malar\u0131 azaltmak amac\u0131yla kuru kumun 100-500 MHZ frekans aral\u0131\u011f\u0131ndaki ba\u011f\u0131l elektriksek ge\u00e7irgenli\u011fi ve iletkenlik de\u011feri ile uyumlu bir empedans d\u00f6n\u00fc\u015ft\u00fcr\u00fcc\u00fc QRHA\u2019n\u0131n a\u00e7\u0131kl\u0131k k\u0131sm\u0131na eklenmi\u015ftir. Ayr\u0131ca d\u00fczlemsel bir al\u0131c\u0131 anten tasar\u0131m\u0131 yap\u0131lm\u0131\u015ft\u0131r. Al\u0131c\u0131 antenin frekans\u0131 sistem \u00e7al\u0131\u015fma frekans\u0131yla uyumlu olacak \u015fekilde 150-650 MHz olarak belirlenmi\u015ftir. 2 kollu ve 4 kollu Ar\u015fimed Spirali, log-periyodik spiral ve d\u00f6rtgensel spiral anten yap\u0131lar\u0131 \u00fczerine \u00e7al\u0131\u015f\u0131lm\u0131\u015f, geri d\u00f6n\u00fc\u015f kayb\u0131, kazan\u00e7, eksenel oran parametrelerine g\u00f6re kar\u015f\u0131la\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r. Analizler sonucunda hedef kriterlerle uyumlu olarak, en y\u00fcksek performansla sonu\u00e7 veren iki kollu Ar\u015fimed Spirali ile ilerlenmesi gerekti\u011fine karar verilmi\u015ftir. Spiral antene boyut k\u00fc\u00e7\u00fcltme teknikleri uygulanarak al\u0131c\u0131 antenin boyutu k\u00fc\u00e7\u00fclt\u00fclm\u00fc\u015ft\u00fcr. Tasar\u0131m\u0131 yap\u0131lan spiral anten i\u00e7in balun tasarlanm\u0131\u015f, antene entegre edilerek performans\u0131 incelenmi\u015ftir. Al\u0131c\u0131 anten i\u00e7in konekt\u00f6r ve \u00fcretim s\u00fcre\u00e7leri de irdelenerek tasar\u0131m \u00fcretime haz\u0131r hale getirilmi\u015ftir.<\/p>\n\n\n\n Hedef Tespit ve Te\u015fhis Algoritmalar\u0131n\u0131n Geli\u015ftirilmesi<\/strong><\/strong><\/p>\n\n\n\n Literat\u00fcr ve g\u00fcncel algoritmalar\u0131n ara\u015ft\u0131r\u0131lmas\u0131 tamamlanm\u0131\u015ft\u0131r. Bunun yan\u0131 s\u0131ra olu\u015fturulan g\u00f6\u00e7\u00fck modelinin benzetimi neticesinde elde edilen S-parametrelerinin yeniden d\u00fczenlenmesi ile olu\u015fturulan veri setleri yapay zeka algoritmalar\u0131 ile s\u0131n\u0131fland\u0131r\u0131lm\u0131\u015ft\u0131r. Bu proje \u00e7al\u0131\u015fmas\u0131nda, bir deprem sonras\u0131nda y\u0131k\u0131lm\u0131\u015f ve i\u00e7inde bir insan\u0131n bulundu\u011fu bir enkaz\u0131n profilini sim\u00fcle etmek i\u00e7in CST Microwave Studio tam dalga analiz arac\u0131 kullan\u0131lm\u0131\u015ft\u0131r. Bu enkaz\u0131n farkl\u0131 yap\u0131 malzemesi oranlar\u0131ndan olu\u015fan d\u00f6rt modeli, \u00fc\u00e7 hava bo\u015flu\u011fu oran\u0131, be\u015f senaryo ve her bir senaryoda fantomun bulundu\u011fu \u00fc\u00e7 derinlik de\u011feri ile tasarlanm\u0131\u015ft\u0131r. Bu \u015fekilde 180 farkl\u0131 olas\u0131 senaryo olu\u015fturulmu\u015ftur. Bu sim\u00fclasyonlar, 150 MHz-650 MHz aral\u0131\u011f\u0131nda 500 kHz ad\u0131mlarla taranan bir spektrumda d\u00fczlem dalga uyar\u0131m\u0131 ile S parametreleri olarak kaydedilmi\u015ftir. Elde edilen veriler, d\u00f6rt farkl\u0131 veri setinde yapay sinir a\u011f\u0131 algoritmalar\u0131 ile s\u0131n\u0131fland\u0131r\u0131lm\u0131\u015ft\u0131r. Bu veri setleri, 180 text dosyas\u0131ndan olu\u015fan ve Matlab ortam\u0131nda bir g\u00f6\u011f\u00fcs parametresine ait olan 1980 dosyaya b\u00f6l\u00fcnm\u00fc\u015ft\u00fcr. Bu verilerin CST’den el ile m\u00fcdahale edilmeden Matlab ortam\u0131nda yeniden d\u00fczenlenebilmesi i\u00e7in gerekli olan t\u00fcm veri d\u00fczenleme kodlar\u0131 tamamlanm\u0131\u015ft\u0131r.<\/p>\n\n\n\n Sistem Entegrasyonu ve \u00d6l\u00e7\u00fcmler<\/strong><\/strong><\/p>\n\n\n\n RF anahtarl\u0131 kontrol sistemi tasar\u0131m\u0131nda al\u0131c\u0131\/verici anten dizisi ile veri toplay\u0131c\u0131 network analiz\u00f6r sisteminin RF anahtarl\u0131 kontrol mekanizmas\u0131 arac\u0131l\u0131\u011f\u0131yla t\u00fcmle\u015ftirilmesi hedeflenmektedir. Belirlenen multi-statik senaryolara y\u00f6nelik laboratuvar ve saha ortam\u0131nda test kurgular\u0131 olu\u015fturulup, performans \u00f6l\u00e7\u00fcmleri yap\u0131lacakt\u0131r. Bu hedef do\u011frultusunda rapor d\u00f6neminde RF anahtarl\u0131 kontrol sistemi tasarlanm\u0131\u015f ve Arduino IDE \u00fczerinde kodlar\u0131 yaz\u0131lm\u0131\u015ft\u0131r. Ayr\u0131ca Vekt\u00f6r Network Analiz\u00f6r ile veri toplama a\u015famas\u0131nda kullan\u0131lacak bir yaz\u0131l\u0131m haz\u0131rlanm\u0131\u015ft\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":" Deprem Sonras\u0131 G\u00f6\u00e7\u00fck Alt\u0131 Canl\u0131 Tespiti i\u00e7in Yapay Zeka Tabanl\u0131 Frekans-Ad\u0131ml\u0131 Multistatik Geni\u015f Bantl\u0131 Radar Yakla\u015f\u0131m\u0131 isimli projemizde ilk 12 ayl\u0131k d\u00f6nemde a\u015fa\u011f\u0131daki i\u015fler tamamlanm\u0131\u015ft\u0131r: Geni\u015f Bantl\u0131 Verici Anten ve Al\u0131c\u0131 Konformal Dizi Anten A\u011f\u0131 Tasar\u0131m\u0131 Radar sisteminin verici anteni olarak piramit formunda, do\u011frusal kutuplamal\u0131, \u00e7ift-\u00e7\u0131k\u0131nt\u0131l\u0131 horn antenin (Double-Ridged Horn Antenna-DRHA) kullan\u0131lmas\u0131 uygun g\u00f6r\u00fclm\u00fc\u015ft\u00fcr. Hem…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/pages\/13"}],"collection":[{"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":3,"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/pages\/13\/revisions"}],"predecessor-version":[{"id":71,"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/pages\/13\/revisions\/71"}],"wp:attachment":[{"href":"http:\/\/www.airadar-earthquake.yildiz.edu.tr\/index.php\/wp-json\/wp\/v2\/media?parent=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}