Phase modulator - Forward introduction
Lub hauv paus ntawm theem modulator modulation:
Xov tooj cua zaus teeb liab muaj oscillating cab kuj nyob rau hauv daim ntawv ntawm sine yoj, uas yog lub hauv paus ntawm lub teeb liab. Lub amplitude tam sim no ua raws li qhov nkhaus no nyob rau hauv qhov zoo thiab tom qab ntawd tsis zoo kev taw qhia, rov qab mus rau qhov chaw pib tom qab ib lub voj voog tag nrho - nws ua raws qhov nkhaus ntawm sine yoj. Lub sine yoj kuj tuaj yeem sawv cev los ntawm kev txav mus los ntawm ib qho chaw hauv lub voj voog, thiab theem ntawm txhua qhov taw tes yog lub kaum sab xis ntawm qhov pib taw tes thiab qhov taw tes ntawm lub waveform. Cov theem kuj nce mus dhau lub sijhawm, yog li cov ntsiab lus ntawm lub waveform tuaj yeem hais tau tias muaj theem sib txawv ntawm lawv. Phase modulation ua haujlwm los ntawm kev hloov pauv theem ntawm lub teeb liab, uas yog, hloov tus nqi ntawm qhov taw tes txav mus ncig lub voj voog. Yog tias tsis siv modulation, qhov no hloov cov theem ntawm lub teeb liab. Hauv lwm lo lus, kev sib hloov ceev nyob ib ncig ntawm lub voj voog yog modulated nrog rau qhov txhais tau tias. Rau qhov no, nws yog ib qho tsim nyog los hloov qhov zaus ntawm lub teeb liab nyob rau lub sijhawm luv luv. Nyob rau hauv lwm yam lus, thaum lub sij hawm modulation yog siv rau lub teeb liab, muaj ib tug zaus hloov, thiab vice versa. Theem thiab zaus yog inextricably txuas vim theem yog ib qho tseem ceeb ntawm zaus.
Lub Hom Phiaj: Txhawm rau nce kev tawm tswv yim-tso tawm ntawm tag nrho cov theem kev hloov pauv los ntawm kev muab xoom qhov chaw teeb tsa hluav taws xob uas ua rau lub teeb liab hluav taws xob los ntawm lub voj voog tsav tsheb xoom thaum lub teeb liab txiav tawm ntawm cov cab kuj raug siv.CONSTITUTION: Diode hloov Circuit Court 10 yog tsib-theem low-pass lim hom hloov Circuit Court siv tus PIN diodes 12 thiab 14; Thaum cov hluav taws xob sib txawv ntawm cov kev taw qhia tau siv rau diodes 12 thiab 14 los ntawm kev tswj Circuit Court 16, qhov hloov pauv hloov thiab thaum cov hluav taws xob rau pem hauv ntej siv, diodes 12 thiab 14 coj los ua ib qho luv luv, yog li txiav tawm cov cab kuj. Tswj Circuit Court 16 siv rau pem hauv ntej voltages rau diodes 12 thiab 14 siv nrog ib tug carrier txiav tawm teeb liab. Tsav tsheb Circuit Court 30, thaum lub tsheb thauj khoom txiav tawm teeb liab siv los ntawm kab 40, tswj kev quab yuam lub teeb liab hluav taws xob kom muab ob-theem PSK modulator 20 rau xoom.
Zhuo Meng Shanghai Auto Co., Ltd. tau cog lus los muag MG & MAUXS tsheb qhov chaw txais tos yuav.
