Njengomkhiqizi wochwephesheizixhumanisi zevidiyo zokuxhumana ezingenantambo, Sibheja ukuthi ububuzwa njalo ngabasebenzisi: ibanga elingakanani ongalisebenzisaI-UAV COFDM Video Transmitter or Izixhumanisi zedatha ye-UGVukufinyelela?
Ukuze siphendule lo mbuzo, sidinga nolwazi olufana nobude bokufakwa kwezimpondo/izimo zezwe/izithiyo, njll. Ukusebenza komsakazo okungenantambo kuyisici esisodwa kuphela.Eqinisweni, kuphela ngalolu phenyo olubanzi olungahlola ibanga langempela lokuxhumana okungenantambo.Nokho ukuhlola okunjalo kudinga ulwazi oluningi kanye namakhono esipiliyoni.
Le bhulogi izohlinzeka ngezindlela eziyisisekelo nezinezimiso zokukusiza wenze izinqumo mayelana nebanga lokuxhumana.
Nazi izinto ezithinta ibanga lokuxhumana nokusebenza kahle kweUhlelo Lokudluliswa Kwevidiyo Okungenantambo.
1. Imininingwane yomkhiqizo wokudluliswa kwevidiyo engenantambo
● Amandla e-RF: a iRF enkuluamandla we umthumeliangakwazifinyelelaa esideibanga lokuxhumana.
IngaphezuluAmandla e-RF, amaza omsakazo akude angahamba.Ubudlelwano phakathi kwamandla okukhiphayo kanye ne-okungenantamboIbanga lokuxhumana lilingana ngokuphambene nesikwele, okusho ukuthi, amandla okukhiphayo aphindwe kabili, futhi ibanga lokuxhumana liphindwe kabili kumsuka woqobo.Amandla okukhiphayo izikhathi ezi-4 zangempela, futhi ibanga lokuxhumana liyizikhathi ezi-2 zangempela.
● Ukuthola Ukuzwela: Ukwamukela okuphansi kokuzwela, kuba ngcono
Ukwamukela ukuzwela kusho izinga elincane lalokhoimisakazo yokuxhumana engenazintamboangamukela futhi aqaphele. Lapho i-ibangayindefuthi amandla esignali aba buthaka kakhuluer, ukuzwela okuphansiimisakazohaveinzuzo yokubamba isignali, okungukuthi, ingasebenza kude.
2. Imisebe
Ukusabalala kwamagagasi omsakazo kuyinto yenkambu ye-electromagnetic field.Ihamba njengegagasi ezindaweni zikagesi nezikazibuthe.
Asakazwa kanjani amaza omsakazo esuka othini? (Umfanekiso 1) Izincwadi eziningi zichaza ukuphuma komsakazo kwaloluthi njengokubukeka "njengenhlama", njengoba kukhonjisiwe esithombeni esingezansi Umfanekiso(2):
Ukusetshenziswa kwale ndlela ukuchaza ukusabalala kwamaza omsakazo kusengaphelele ngandlela thize. Isibonelo, abantu basabuza, "Mukhulu kangakanani umbuthano?""Kuyini ngaphandle kwendingilizi?"
Ngakho-ke, ukuze unikeze ukuqonda okunembile kokuphuma komsakazo,sisebenzisa isibani se-fluorescent ukuze silingise imisebe yomsakazo njengoba ngezansi kwesibalo (3).
Bukulungaunamandlaengxenyeni ephakathifuthi buthaka emikhawulweni yomibili, okubonisa ukusatshalaliswa kokuqina kokukhanya okukhishwa esibanini.Lesi simo singaqhathaniswa ne-antenna yokudlulisa okungenantambo, lapho amandla esignali phakathi nendawo ephezulu namandla esiginali emikhawulweni yomibili ephansi.Lokho's kunganiukuphakama kokufakwa kwe-antenna kuyisici esibalulekile kuthinta ibanga lokuxhumana.
3.Izici Zemvelo
Amandla omsakazo "ayagqashuka" othini futhi ahambe aye endaweni ekhululekile.Kunezinkambu zikagesi nezikazibuthe ezimile endaweni yamahhala.Amandla omsakazo ahamba ngendlela "yamagagasi" "anyakazayo" endaweni emile.
Lapho amandla omsakazo esabalalisa ngendlela yamagagasi kagesi, azohlangabezana nezithiyo, futhi azophinde akhiqize izenzakalo ezifana nokubonisa noma ukuphikisa njengokukhanya, amaza amanzi, namaza omoya njengoMfanekiso(4).
Ngemva kokuba igagasi lomsakazo liboniswa kanye, isigaba segagasi sizoshintsha ngokuphelele.Iziqongo ziphenduka imikhombe, futhi imikhombe iba ama-crest.Yebo, kukhona futhi ukuqondana kokuthi indlela ebonisiwe iwuhhafu we-wavelength ukude kunendlela eqondile.Khona-ke kuyoba khona iziqongo eziqoshwe phezulu eziqongweni, kanye nemikhombe ebekwe phezulu emikhombeni, futhi isignali izoqiniswa ngezinga elikhulu kakhulu.
I-LOS (Umugqa Wokubona) ukuxhumana okungenantambo kunezindlela ezimbili zokusakaza: eziqondile nezibonisayo.Uma kukhona isithiyo esiqondisweni sokusabalalisa, ukuze indlela eqondile ivinjwe, isignali ingafinyelelwa kuphela ngokucabangela, okubizwa ngokuthi.okungewona umugqaukusabalalisa (NLOS).Umthelela wokudlulisela uyancipha kakhulu.Kukhona elinye icala, ukuphakama kwesithiyo akuphakeme kakhulu, indlela eqondile ingafinyelelwa.Kodwa lolo hlobo lwendlela yokubonisa yesignali "ethuthukisiwe" ivinjiwe, futhi umthelela wokudlulisela nawo muhle.
Okwamanje, ubunjiniyela basebenzisa indawo yeFresnel ukuhlola umthelela wezithiyo ekuxhumaneni komugqa wokubona.I-Fresnel zone icabangela izindawo eziqondile nezibonisayo.Uma nje zingekho izithiyo futhi zingekho izithiyo kule ndawo, cishe ibanga lokuxhumana lingalinganiselwa.
Cukufakwa
Okungenantambomobilevumbonoti-ransmitterisebenza endawenilapho bobabili abathintekayo bengabonana akukhona ngempela ukuxhumana komugqa wokubona.Kuphela uma indawo endaweni yeFresnel yanelisekile lapho isimo sokudluliswa komugqa wokubona singafinyelelwa.Yini okufanelewengenzeni uma kunezithiyo?Esimeni lapho isithiyo singanyakaziswa, singaphakamisa i-antenna ngokuvumelana nesimiso sendawo yeFresnel.
Isikhathi sokuthumela: Jun-20-2023
