{"product_id":"shodstwo-izobrazhenij-po-komputernoj-seti-ofdm-von-rasha-ali-dihin","title":"Shodstwo izobrazhenij po komp'üternoj seti OFDM","description":"\u003cp\u003eRaspoznawanie lic qwlqetsq slozhnoj i nereshennoj problemoj w obrabotke signalow. OFDM (ortogonal'noe chastotno-diffuznoe mul'tiplexirowanie) qwlqetsq osnowoj sistem mobil'noj swqzi 4G, 5G, kotoraq obespechiwaet wysokuü skorost' peredachi dannyh w besprowodnyh sistemah swqzi. My predlozhili meru (NMSE), kotoraq osnowana na normalizowannoj (MSE), dlq prowerki äffektiwnosti peredachi izobrazhenij w sisteme OFDM, s äffektom mnogoluchewosti i bez nego. Pod ätim äffektom podrazumewaütsq razlichnye tipy shuma, takie kak gaussowskij, impul'snyj i shum Räleq. My srawnili proizwoditel'nost' (NMSE) s izwestnoj meroj indexa strukturnogo shodstwa (SSIM) pri razlichnyh shemah modulqcii bazowoj polosy: Dwoichnyj klüch so sdwigom fazy (BPSK), Kwadraturnyj klüch so sdwigom fazy (QPSK).\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9786204011745\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9786204011745","offer_id":39450276331613,"sku":"9786204011745","price":24.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/f039a102-de91-4557-aaa5-d67f0299f506.jpg?v=1759122608","url":"https:\/\/shop.autorenwelt.de\/products\/shodstwo-izobrazhenij-po-komputernoj-seti-ofdm-von-rasha-ali-dihin","provider":"Autorenwelt Shop","version":"1.0","type":"link"}