los ntawm Admin / 25 Sep 22 /0Cov lus pom Basic Technical Principles ntawm MIMO Txij li thaum 802.11n, MIMO thev naus laus zis tau siv hauv cov txheej txheem no thiab tau txhim kho qhov sib kis tau zoo dua. Tshwj xeeb, yuav ua li cas kom tau txais kev txhim kho technology siab. Tam sim no cia peb saib ze dua ntawm MIMO thev naus laus zis. Nrog kev nce qib ntawm kev sib txuas lus wireless technology, mor ... Nyeem ntxiv los ntawm Admin / 23 Sep 22 /0Cov lus pom Classification ntawm Switches Muaj ntau hom kev hloov pauv ntawm kev ua lag luam, tab sis kuj tseem muaj qhov sib txawv ntawm kev ua haujlwm, thiab cov yam ntxwv tseem ceeb sib txawv. Nws tuaj yeem muab faib raws li qhov dav dav thiab qhov ntsuas ntawm daim ntawv thov: 1) Ua ntej ntawm tag nrho cov, nyob rau hauv ib tug dav kev txiav txim siab, network keyboards yuav muab faib ua ob pawg ... Nyeem ntxiv los ntawm Admin / 22 Sep 22 /0Cov lus pom Direct Sequence Spread Spectrum (DSSS) Kev Sib Txuas Lus - Txoj Cai Sib Txuas Lus Lub hauv paus ntsiab lus: Lub hauv paus ntsiab lus ntawm Direct Sequence Spread Spectrum system yog qhov yooj yim heev. Piv txwv li, ib txoj hlua ntawm cov ntaub ntawv xa mus tau nthuav dav mus rau ntau qhov ntau zaus los ntawm PN code. Thaum tau txais qhov kawg, cov ntaub ntawv xa tuaj yog rov qab los ntawm kev sib txuas ntawm cov teeb liab sib kis nrog ... Nyeem ntxiv los ntawm Admin / 21 Sep 22 /0Cov lus pom Introduction to Error Vector Magnitude (EVM) EVM: abbreviation of Error Vector Magnitude, uas txhais tau hais tias yuam kev vector amplitude. Cov teeb liab digital zaus kis tau tus mob yog los hloov cov teeb liab baseband ntawm qhov kawg xa, xa mus rau kab rau kev sib kis, thiab tom qab ntawd demodulate nws ntawm qhov kawg tau txais kom rov qab tau cov thawj baseband ... Nyeem ntxiv los ntawm Admin / 20 Sep 22 /0Cov lus pom Cov ntaub ntawv kis tau tus mob thiab txoj cai ua haujlwm Lub hauv paus ntsiab lus ua haujlwm: Tom qab ib qho ntawm qhov hloov pauv tau txais cov ntaub ntawv xa mus, nws ceev nrooj tshawb cov chaw nyob hauv lub cim xeeb kom paub meej tias qhov chaw sib txuas ntawm daim npav network nrog MAC chaw nyob thiab xa cov ntaub ntawv mus rau ntawm qhov chaw. Yog tias qhov chaw sib thooj yog ... Nyeem ntxiv los ntawm Admin / 19 Sep 22 /0Cov lus pom Yuav Ua Li Cas Txiav Txim Zoo ntawm Optical Modules Ntau tus neeg sab nrauv kho qhov muag modules ntawm kev ua lag luam muaj txiaj ntsig zoo hauv tus nqi piv nrog cov khoom siv kho qhov muag qub, uas tuaj yeem daws qhov teeb meem ntawm tus nqi xa tawm siab ntawm optical modules. Txawm li cas los xij, qee tus neeg tseem txhawj xeeb txog qhov zoo ntawm cov khoom siv kho qhov muag sib xws. HDV... Nyeem ntxiv << < Ua ntej25262728293031Tom ntej no>>> Page 28/76