Patinotumira chiratidzo, ingave chiratidzo chemaziso kana chiratidzo chemagetsi kana chisimbiso chisina mhepo, kana chikatumirwa zvakananga, chiratidzo chinokonzerwa nekukanganiswa kweruzha, uye zvakaoma kuwana ruzivo rwakarurama pamagumo ekugamuchira. Kuti uvandudze kugona kwe-anti-kupindira kweiyo system, inogona kuitika nekugadzirisa chiratidzo. Modulation inogonawo kuvandudza chiyero chekushandisa chiteshi, saka modulation ine simba guru pakubudirira uye kuvimbika kweiyo nzira yekutaurirana.
Iyo Angle modulation inotsanangurwa pazasi ndeye analog masaini.
Sinusoidal carrier ine matatu parameters: amplitude, frequency uye phase. Isu tinokwanisa kutakura ruzivo rwechiratidzo chemodulated kwete chete mukushanduka kweamplitude yemutakuri, asiwo muhuwandu kana shanduko yechikamu chemutakuri. Munguva yekushandura, kana kuwanda kwemutakuri kuchichinja nechiratidzo chemodulated, inonzi frequency modulation kana frequency modulation (FM); Kana iyo chikamu chemutakuri ichichinja neiyo modulated chiratidzo, inodaidzwa kuti phase modulation kana phase modulation (PM). Mune aya maviri maitiro ekugadzirisa, iyo amplitude yemutakuri inoramba iripo, nepo shanduko yenguva uye nhanho inoratidzwa sekuchinja kwepakarepo chikamu chemutakuri, saka iyo frequency modulation uye phase modulation inosanganiswa inonzi Angle modulation.
Musiyano uripo pakati peAngle modulation uye amplitude modulation ndeyekuti iyo modulated siginecha spectrum haisisiri mutsara wekuchinja kweiyo yekutanga modulated chiratidzo spectrum, asi isina mutsara shanduko yeiyo spectrum, iyo inoburitsa mitsva yefrequency zvikamu zvakasiyana kubva kune spectrum shift, saka ndizvo. inonziwo nonlinear modulation.
Ose FM uye PM anoshandiswa zvakanyanya muhurongwa hwekutaurirana. FM inoshandiswa zvakanyanya mukutepfenyura mumhanzi wepamusoro-soro, kufambisa kwemasaini eTV, kutaurirana nesatellite uye nharembozha. Pamusoro pekushandiswa zvakananga kutapurirana, PM inowanzoshandiswa seshanduko yekuburitsa zvisina kunanga masaini eFM. Pane hukama hwepedyo pakati pe frequency modulation uye phase modulation.
Kuenzaniswa neamplitude modulation, iyo inonyanya kukosha mukana weAngle modulation ndeye yakakwira anti-ruzha kuita. Nekudaro, pane kutengeserana pakati pekuwana uye kurasikirwa, uye mutengo weiyi mukana ndewekuti Angle modulation inogara yakafara bandwidth pane amplitude modulated masaini.
Zviri pamusoro iShenzhen HDV Phoelectron Technology Co., Ltd. kuti iwe uunze ruzivo rwe "nonlinear modulation (Angle modulation)". Shenzhen HDV Phoelectron Technology Co., Ltd. inonyanya kuve yakavakirwa pane zvigadzirwa zvekutaurirana zvekugadzirwa kwevagadziri, iko ikozvino kugadzirwa kwemidziyo inovhara:ONUseries, optical module series,OLTseries, transceiver series. Inogona kupa masevhisi akajairwa kune akasiyana mamiriro ezvido zvetiweki, unogamuchirwa kuti uuye kuzobvunza.
