Radar

A cikin tsarin radar, ana amfani da na'urori musamman don canza siginar echo da aka karɓa ta radar daga siginar mitar rediyo (RF) zuwa siginar tushe don ƙarin aiki kamar ma'aunin nesa da auna saurin manufa. Musamman, siginar RF mai tsayin da ke fitowa ta hanyar radar suna zuga raƙuman ruwa da aka tarwatsa akan manufa, kuma bayan an karɓi siginar echo waveform, aikin sarrafa siginar yana buƙatar aiwatar da aikin ganowa. Mai ganowa yana juyar da canje-canje a cikin girma da mitar siginar RF masu girma zuwa DC ko ƙananan siginar lantarki don sarrafa sigina na gaba.

Mai ganowa shine ainihin ɓangare na tsarin aiki a cikin hanyar karɓar radar, galibi gami da ƙaramar siginar, mahaɗa, oscillator na gida, tacewa da ƙarawa wanda ya ƙunshi mai karɓar siginar echo. Daga cikin su, ana iya amfani da oscillator na gida azaman tushen siginar siginar (Local Oscillator, LO) don samar da siginar haɗin gwiwa don haɗawa da mahaɗa, kuma ana amfani da filtata da amplifiers galibi don ƙarancin ƙugiya na kewayawa da haɓaka siginar IF. Sabili da haka, mai ganowa yana taka muhimmiyar rawa a cikin tsarin radar, kuma aikinsa da kwanciyar hankali na aiki yana tasiri kai tsaye ga ganowa da kuma bin diddigin tsarin radar.

Lokacin aikawa: Juni-25-2023