Radar

A cikin tsarin radar, ana amfani da na'urorin gano abubuwa musamman don canza siginar amsawar da radar ta karɓa daga siginar mitar rediyo (RF) zuwa siginar tushe don ƙarin sarrafawa kamar auna nisa da auna saurin manufa. Musamman ma, siginar RF mai yawan mita da radar ke fitarwa tana motsa raƙuman ruwa da ke warwatse a kan abin da aka nufa, kuma bayan an karɓi waɗannan siginar amsawar sauti, ana buƙatar aiwatar da aikin rage siginar ta hanyar na'urar gano abubuwa. Na'urar gano abubuwa tana canza canje-canje a cikin girma da mitar siginar RF mai yawan mita zuwa DC ko siginar lantarki mai ƙarancin mita don sarrafa siginar daga baya.

Na'urar ganowa a zahiri wani ɓangare ne na tsarin aiki a cikin hanyar karɓar radar, galibi ya haɗa da na'urar ƙara sigina, na'urar haɗawa, na'urar juyawa ta gida, matattara da na'urar ƙara sigina da aka haɗa da mai karɓar siginar echo. Daga cikinsu, ana iya amfani da na'urar juyawa ta gida azaman tushen siginar tunani (Local Oscillator, LO) don samar da haɗin gwiwa don haɗa na'urorin haɗawa, kuma ana amfani da matattara da na'urorin ƙara sigina galibi don ƙarancin tacewa na da'irori da haɓaka siginar IF. Saboda haka, na'urar ganowa tana taka muhimmiyar rawa a cikin tsarin radar, kuma aikinta da kwanciyar hankalin aiki suna shafar ikon ganowa da bin diddigin tsarin radar kai tsaye.

Lokacin Saƙo: Yuni-25-2023