Akụkọ ihe mere eme nke radar na-emeghe

Akụkọ ihe mere eme nke radar synthetic-aperture ihe na 1951, site na nke nkà nke nkà na ẹzé site na ibe na ngwaọrụ Carl A. Wiley, na kunna ya n'ime afọ iri na-esote.  N'ịbụ nke ihe e ibu maka iji agha eme, ejirila nkà na ẹzẹ mee ihe na ngalaba ihe mbara ala .

. Carl A. Wiley, [1] onye akwụkwọ na ire na Goodyear Aircraft Company na Litchfield Park, Arizona, isi radar synthetic-aperture na June 1951 mgbe ọ na-arụ ọrụ na usoro nyere maka mmemme Atlas ICBM .  [2] Ná sabunta 1952, Wiley, yana Fred Heisley na Bill Welty, ụkpụrụ nkwado echiche nke maara dị ka DOUSER ("Doppler Unbeamed Search Radar").  N'ime 1950s na 1960s, Goodyear Aircraft (mgbe e ebere Goodyear Aerospace) webatara ọtụtụ àmà na nkà na ẹzà SAR, ọtụtụ site n'ibu nke Don Beckerleg

N'ime mmemme ahụ, a na-eme nhazi nke ndekọghachi radar site na usoro nzacha ọkụ eletrik.  N'ezie, ike mgbaama dị n'ọgụ dị iche iche nke ugboro Doppler kọwapụtara ike onyonyo nke egosiri na ọnọdụ ahụ dabara adaba n'ime ebe kwesịrị ncheta.  Mgbe odi etiti (zero-Doppler band) nke mgbanaka nloghachi ejiri meere ahụ dị ka a ga-assị na kaadị etiti ahụ dị.  Nke ahụ butere okwu Doppler Beam Sharpening.  Igosipụta nloghachi site n'ọtụtụ band Doppler na- agbụrụ efu mezuru n'ihu "mme egwuregwu beam-subdividing" (mgbe ụfọdụ a na-akpọ "radar na- ụbọghị anya", n'agbanyeghị na ọ ga-abụ na a na-ewere  ya dị ka "agbadoro anya ọkara").  Patent Wiley, nke etinyere na 1954, ka ihe aro nhazi yiri nke ahụ.  Azịzarị sekit dị na ya na-ejedebe oké nwanne ndị ahụ nwere ike imeziwanye egwu.