Inkomoko yikimenyetso irashobora gutanga ibimenyetso byukuri kandi bihamye byerekana ibizamini bitandukanye hamwe na sisitemu yo kugerageza. Imashini itanga ibimenyetso yongeramo imikorere yukuri yo guhindura, ishobora gufasha kwigana ibimenyetso bya sisitemu no gukora ibizamini byimikorere. Byombi ibimenyetso bya vector hamwe nibimenyetso bya RF bishobora gukoreshwa nkibimenyetso byikizamini. Hasi dufite ibimenyetso byabo biranga isesengura.
Inkomoko yikimenyetso irashobora gutanga ibimenyetso byukuri kandi bihamye byerekana ibizamini bitandukanye hamwe na sisitemu yo kugerageza. Imashini itanga ibimenyetso yongeramo imikorere yukuri yo guhindura, ishobora gufasha kwigana ibimenyetso bya sisitemu no gukora ibizamini byimikorere. Byombi ibimenyetso bya vector hamwe nibimenyetso bya RF bishobora gukoreshwa nkibimenyetso byikizamini. Hasi dufite ibimenyetso byabo biranga isesengura.
Ni irihe tandukaniro riri hagati yikimenyetso cya vector ninkomoko yikimenyetso cya RF?
1. Intangiriro kuri Vector Signal Source
Imashini itanga ibimenyetso bya vector yagaragaye mu myaka ya za 1980, kandi ikoresha uburyo bwo hagati ya interineti ihinduranya uburyo bwo guhinduranya hamwe na radiyo yumurongo wo hasi kugirango ihindure ibimenyetso byerekana ibimenyetso. Ihame nugukoresha umurongo wa synthesis yumurongo kugirango ubyare umusaruro uhoraho uhindagurika microwave yikimenyetso cya oscillator yaho hamwe nikimenyetso gihamye cyagateganyo. Ikimenyetso giciriritse hagati yikimenyetso hamwe na baseband binjiza moderi ya vector kugirango itange icyerekezo giciriritse cya vector ihinduranya ibimenyetso hamwe numuyoboro uhoraho (inshuro yikwirakwiza ni inshuro yikimenyetso cyerekana). ikimenyetso. Ikimenyetso cya radiyo yumurongo kirimo amakuru ya baseband kimwe nigihe cyo hagati ya vector modulation signal. Ikimenyetso cya RF noneho kiba kimenyetso kandi gihindurwa nigice cyerekana ibimenyetso, hanyuma cyoherezwa kubisohoka kugirango bisohore.
Vector signal generator frequency synthesis sub-unit, signal conditioning sub-unit, sisitemu yo kugereranya nibindi nibindi ni kimwe na generator isanzwe. Itandukaniro riri hagati yikimenyetso cyerekana ibimenyetso nibisanzwe bitanga ibimenyetso ni vector modulation unit hamwe na baseband signal signal.
Kimwe na modulasiyo igereranya, modulisiyo ya digitale nayo ifite uburyo butatu bwibanze, aribwo guhinduranya amplitude, icyiciro cya modulasiyo no guhinduranya inshuro. Moderi ya vector isanzwe ikubiyemo ibice bine bikora: oscillator yaho 90 ° icyiciro-gihinduranya amashanyarazi agabanya ibice byinjiza RF mubimenyetso bibiri bya RF orthogonal RF; ibice bibiri bivanga bihindura baseband mubyiciro bya signal na signal ya quadrature Kugwiza hamwe nibimenyetso bya RF bihuye; imbaraga synthesis unit igereranya ibimenyetso bibiri nyuma yo kugwira no gusohoka. Mubisanzwe, ibyinjira byose nibisohoka ibyambu birangizwa imbere hamwe na 50Ω umutwaro kandi bigakoresha uburyo butandukanye bwo gutwara ibimenyetso kugirango ugabanye igihombo cyo kugaruka no kunoza imikorere ya moderi ya vector.
Igice cya baseband cyerekana ibimenyetso bikoreshwa mugutanga ibyangombwa bisabwa bya digitale ya baseband, kandi umurongo utangwa numukoresha urashobora no gukururwa kububiko bwa flimform kugirango ubyare imiterere-yabakoresha. Amashanyarazi ya baseband mubisanzwe agizwe nibiturika biturika, ibyuma bitanga amakuru, ibyuma bitanga ibimenyetso, ibisubizo bitagira ingano (FIR) muyunguruzi, ibyuma bisubiramo ibyuma, DAC, hamwe niyungurura.
2. Kumenyekanisha inkomoko ya signal ya RF
Ubuhanga bugezweho bwa tekinoroji ya tekinoroji ikoresha uburyo butaziguye bwo guhuza uburyo butaziguye kugirango uhuze inshuro zinkomoko nyamukuru yinyeganyeza hamwe ninshuro yinkomoko yinkomoko ikoresheje icyiciro gifunze. Irasaba ibikoresho bike byibikoresho, kwizerwa cyane, hamwe nintera yagutse. Intangiriro yacyo ni icyiciro gifunze, kandi ibimenyetso bya RF ni isoko yagutse. Muri rusange, ibimenyetso byose bishobora gutanga ibimenyetso bya RF birashobora kugendana ibimenyetso bya RF. Ibimenyetso byerekana ibimenyetso byubu biri mubice bya RF, kubwibyo byitwa kandi ibimenyetso bya vector RF.
Icya gatatu, itandukaniro riri hagati yibi bimenyetso byombi
1. Inkomoko yumurongo wa radiyo isukuye ikoreshwa gusa mugutanga radiyo igereranya inshuro imwe, kandi mubisanzwe ntabwo ikoreshwa mugutanga ibimenyetso byahinduwe, cyane cyane ibimenyetso byahinduwe na digitale. Ubu bwoko bwibimenyetso bituruka muri rusange bifite umurongo mugari hamwe nimbaraga nini zingirakamaro.
2. Inkomoko yerekana ibimenyetso bikoreshwa cyane cyane mukubyara ibimenyetso bya vector, ni ukuvuga, ibimenyetso bisanzwe bikoreshwa muburyo bwo gutumanaho hakoreshejwe Digital, nka l / Q modulation: BAZA, FSK, MSK, PSK, QAM, yihariye I / Q, 3GPPLTE FDD na TDD, 3GPPFDD / HSPA / HSPA +, GSM / EDGE / EDGE ubwihindurize, TD-SCDMA, WiMAX? N'andi mahame. Kubimenyetso byerekana ibimenyetso, bitewe na moderi yimbere yimbere, inshuro ntisanzwe cyane (hafi 6GHz). Indangagaciro ijyanye na modulator yayo (nk'iyubatswe muri baseband ya signal ya bande) n'umubare w'imiyoboro ni ikimenyetso cyingenzi.
Inshingano: Iyi ngingo ni ingingo yasubiwemo. Intego yiyi ngingo ni ugutanga amakuru menshi, kandi uburenganzira ni ubwanditsi bwumwimerere. Niba videwo, amashusho, hamwe ninyandiko zikoreshwa muriyi ngingo zirimo ibibazo byuburenganzira, nyamuneka hamagara umwanditsi kugirango akemure.