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Muma radar masisitimu, madhijitari anonyanya kushandiswa kushandura echo siginecha inotambirwa neradar kubva kuredhiyo frequency (RF) chiratidzo kuita baseband chiratidzo chekuwedzera kugadziridzwa senge kuyerwa kwechinhambwe uye kuyerwa kwekumhanya kwechinangwa. Kunyanya, iyo yakakwira-frequency RF masiginecha anoburitswa neradar anofadza mafungu akapararira pane chinangwa, uye mushure meaya echo waveform masaini agamuchirwa, iyo chiratidzo chedhizaini yekugadzirisa inoda kuitiswa kuburikidza ne detector. Iyo detector inoshandura shanduko muamplitude uye frequency yeakakwira-frequency RF masiginecha kuita DC kana yakaderera-frequency masaini emagetsi ekuzotevera masaini ekugadzirisa.
Iyo detector inonyatso chikamu cheiyo inoshanda module munzira yekugamuchira radar, kunyanya kusanganisira chiratidzo cheamplifier, musanganiswa, oscillator yemunharaunda, sefa uye amplifier inoumbwa neiyo echo chiratidzo inogamuchira. Pakati pavo, iyo oscillator yemunharaunda inogona kushandiswa sechiratidzo chechiratidzo (Local Oscillator, LO) kupa co-signal yekusanganisa musanganiswa, uye mafirita uye amplifiers anonyanya kushandiswa kune isina kusimba kusefa kwemasekete uye IF chiratidzo chekusimudzira. Nokudaro, iyo detector inobata basa rinokosha mu radar system, uye kushanda kwayo uye kugadzikana kwekushanda kunobata zvakananga kuona uye kutevera kukwanisa kweiyo radar system.
Nguva yekutumira: Jun-25-2023