Njengomvelisi weengcaliamakhonkco evidiyo yonxibelelwano engenazingcingo, Sibheja ubusoloko ubuzwa ngabasebenzisi: ubude obungakanani uluhlu lwakhoUAV COFDM Video Transmitter or UGV data linksukufikelela?
Ukuphendula lo mbuzo, sikwafuna ulwazi olufana nobude bofakelo lwe-eriyali/imiqathango yomhlaba/imiqobo, njl. njl. Ukusebenza kwerediyo engenazingcingo yinto enye kuphela.Enyanisweni, kuphela ngolu phando lubanzi anokuvavanya owona mgama wonxibelelwano olungenazingcingo.Nangona kunjalo uvavanyo olunjalo lufuna ulwazi oluninzi kunye namava ezakhono.
Le bhlog iya kubonelela ngeendlela ezisisiseko kunye nemigaqo yokukunceda wenze izigwebo malunga nomgama wonxibelelwano.
Nazi izinto ezichaphazela umgama wonxibelelwano kunye nokusebenza kakuhle kweInkqubo yoThunyelo lweVidiyo engenazingcingo.
1. Iinkcukacha zemveliso yosasazo yevidiyo engenazingcingo
● Amandla eRF: a RF enkuluamandla e umthumeliunakoukufikelelaa ixesha elideumgama wonxibelelwano.
IphezuluAmandla eRF, amaza kanomathotholo akude anokuhamba.Ubudlelwane phakathi kwamandla emveliso kunye newirelessumgama wonxibelelwano ulungelelaniswa ngokuphambanayo kwisikwere, oko kukuthi, amandla emveliso aphindwe kabini, kwaye umgama wonxibelelwano uphinda kabini ingcambu yeyoqobo.Amandla aphumayo ngamaxesha angama-4 eyokuqala, kwaye umgama wonxibelelwano ngama-2 amaxesha okuqala.
● Ukufumana uvakalelo: Ukufumana uvakalelo olusezantsi, kungcono
Ukufumana ubuntununtunu kubhekisa kwelona nqanaba lisezantsiiirediyo zonxibelelwano ezingenazingcingoangamkela kwaye aqaphele. Xa iumgamaindekwaye amandla omqondiso uba buthathaka kakhuluer, uvakalelo olusezantsioonomathotholohayiveinzuzo yokubamba umqondiso, oko kukuthi, inokusebenza kumgama omde.
2. Imitha
Ukusasazwa kwamaza onomathotholo yinto ye-electromagnetic field field.Ihamba njengamaza ombane kunye nemagnethi.
Ingaba amaza erediyo ahanjiswa njani esuka kwi-eriyali? (Umfanekiso 1) Iincwadi ezininzi zichaza ukukhutshwa kukanomathotholo kule eriyali njengokukhangeleka "njengentlama", njengoko kubonisiwe kumfanekiso ongezantsi uMfanekiso(2):
Ukusetyenziswa kwale ndlela ukuchaza ukusasazwa kwamaza kanomathotholo ayikafezekanga noko. Umzekelo, abantu basabuza, "Ingakanani isangqa?""Yintoni ngaphandle kwesangqa?"
Ke ngoko, ukuze unike ukuqonda okungaphaya kokuphuma koonomathotholo,sisebenzisa isibane sefluorescent ukulinganisa ukusasazeka kwerediyo njengoko kungezantsi komzobo (3).
Bukulungawomeleleembindinikwaye buthathaka kuzo zombini eziphelweni, ebonisa ukuhanjiswa kokuqina kokukhanya okuphuma kwisibane.Le nto inokuthi ifaniswe ne-eriyali yokuhanjiswa kwe-wireless, apho amandla omqondiso phakathi aphezulu kwaye amandla omqondiso kuzo zombini iziphelo aphantsi.Oko's kutheniukuphakama kofakelo lwe-eriyali yinto ebalulekileyo ichaphazela umgama wonxibelelwano.
3.Iizinto zokusiNgqongileyo
Amandla kanomathotholo "akhululeka" kwi-eriyali kwaye ahambe kwindawo ekhululekileyo.Kukho iindawo zombane ezimileyo kunye nemagnethi kwindawo esimahla.Amandla kanomathotholo ahamba ngendlela "yamaza" athi "ripple" kwindawo engatshintshiyo.
Xa amandla kanomathotholo esasaza ngohlobo lwamaza ombane, aya kudibana nemiqobo, kwaye aya kuvelisa isenzeko esifana nokubonakaliswa okanye ukuchaswa okufana nokukhanya, amaza amanzi, kunye namaza omoya njengoMzobo (4).
Emva kokuba iliza likanomathotholo libonakaliswe kube kanye, isigaba samaza siya kutshintsha ngokupheleleyo.Iinkcochoyi ziba zizikhonkwane, nezikhongozelo zibe ziziqwenga.Kakade ke, kukwakho into eyenzekileyo yokuba indlela ebonakalisiweyo ikwisiqingatha sobude bobude kunendlela ethe ngqo.Emva koko kuya kubakho iincopho ezibekwe phezu kweencopho, kunye nemikhombe ebekwe ngaphezulu kwimikhombe, kwaye umqondiso uya komelezwa ngowona mlinganiselo mkhulu.
I-LOS (Umgca we-Sight) unxibelelwano olungenazintambo luneendlela ezimbini zokusasaza: ngokuthe ngqo kunye nokubonakalisa.Ukuba kukho umqobo kwindlela yokusasaza, ukwenzela ukuba indlela ethe ngqo ivalwe, umqondiso unokufikelelwa kuphela ngokubonakalisa, okubizwa ngokuba.non-line-of-umbonousasazo (NLOS).Isiphumo sosulelo sincitshiswa kakhulu.Kukho enye imeko, ukuphakama komqobo akuphezulu kakhulu, indlela ethe ngqo inokufikelelwa.Kodwa olo hlobo lwendlela yokubonakalisa isignali "eyongeziweyo" ivaliwe, kwaye impembelelo yokuhanjiswa nayo inkulu.
Okwangoku, ubunjineli busebenzisa ummandla weFresnel ukuvavanya ifuthe lemiqobo kunxibelelwano lomgca wokubona.Ummandla weFresnel uthatha ingqalelo kwiindawo ezithe ngqo kunye nezibonisayo.Logama nje kungekho miqobo kwaye akukho zithintelo kule ndawo, umgama oqikelelweyo wonxibelelwano unokuqikelelwa.
Cukuqukwa
Wirelessmobilevingcamangotiransmitterisebenza endaweniapho omabini amaqela anokubonana ayilulo unxibelelwano lomgca wokubonana.Kuphela xa umhlaba okwindawo yeFresnel wanelisekile apho imeko yokuhanjiswa komgca wokubona inokufezekiswa.Kufuneka ntoniweukwenza ukuba kukho imiqobo?Kwimeko apho umqobo awukwazi ukuhanjiswa, sinokuphakamisa i-antenna ngokomgaqo wendawo yeFresnel.
Ixesha lokuposa: Jun-20-2023
