Ngaphezu komphumela othuthukisiwe wamandla okudlulisa kanye nokuzuza kwe-antenna emandleni esignali, ukulahleka kwendlela, izithiyo, ukuphazamiseka nomsindo kuzowenza buthaka amandla esiginali, konke okuwukuphela kwesignali.Lapho uklama ainethiwekhi yokuxhumana yebanga elide, kufanele sinciphise ukufiphala kwesignali kanye nokuphazamiseka, sithuthukise amandla esignali, futhi sikhulise ibanga elisebenzayo lokudlulisela isignali.
Ukufiphala Kwesiginali
Amandla esignali engenantambo azokwehla kancane kancane phakathi nenqubo yokudlulisela.Njengoba umamukeli angathola kuphela futhi akhombe amasignali angenawaya amandla awo esiginali angaphezulu komkhawulo othile, lapho isignali iba nkulu kakhulu, umamukeli ngeke akwazi ukuyikhomba.Okulandelayo yizici ezine eziyinhloko ezithinta ukuphela kwesignali.
● Isithiyo
Izithiyo ziyisici esivame kakhulu nesibalulekile kumanethiwekhi okuxhumana angenantambo anomthelela omkhulu ekuncishweni kwesignali.Ngokwesibonelo, izindonga ezihlukahlukene, ingilazi, neminyango kunciphisa amasignali angenantambo ngamazinga ahlukahlukene.Ikakhulukazi izithiyo zensimbi kungenzeka zivimbe ngokuphelele futhi zibonise ukusabalala kwamasignali angenantambo.Ngakho-ke, lapho sisebenzisa imisakazo yokuxhumana engenantambo, kufanele sizame ukugwema izithiyo zokuthola ukuxhumana okude.
● Ibanga lokudlulisela
Lapho amaza kagesi kazibuthe esabalala emoyeni, njengoba ibanga lokudlulisela likhula, amandla esiginali azofiphala kancane kancane aze anyamalale.Ukuncishiswa kwendlela yokudlulisela ukulahleka kwendlela.Abantu abakwazi ukushintsha inani lokuncishiswa komoya, futhi abakwazi ukugwema amasiginali angenawaya ahamba emoyeni, kodwa banganweba ibanga lokudlulisela lamagagasi kagesi ngokwandisa amandla okudlulisa ngokunengqondo nokunciphisa izithiyo.Amanye amagagasi kazibuthe kagesi angahamba, indawo ebanzi uhlelo lokudlulisa okungenazintambo olungamboza.
● Imvamisa
Kumagagasi kagesi, lapho ubude begagasi buba mfushane, buba nzima nakakhulu.Uma imvamisa yokusebenza ingu-2.4GHz, 5GHz noma 6GHz, ngoba imvamisa yabo iphakeme kakhulu futhi ubude begagasi bufushane kakhulu, ukufiphala kuzoba sobala kakhulu, ngakho-ke ngokuvamile ibanga lokuxhumana ngeke libe kude kakhulu.
Ngaphezu kwalezi zici ezingenhla, ezifana nothi, izinga lokudluliswa kwedatha, uhlelo lokuguquguquka, njll., nakho kuzothinta ukufiphala kwesignali.Ukuze kutholwe ibanga elide lokuxhumana, iningiIWAVE i-wireless data transmitteryamukela i-800Mhz ne-1.4Ghz yevidiyo ye-hd, izwi, idatha yokulawula kanye nokudlulisa idatha ye-TCPIP/UDP.Zisetshenziswa kakhulu kuma-drones, izixazululo ze-UAV, i-UGV, izimoto zokuxhumana eziyalayo kanye ne-transceiver yomsakazo ephathwa ngesandla eyinkimbinkimbi nangale komugqa wokuxhumana obonakalayo.
●Ukuphazamiseka
Ngaphezu kokunciphisa isignali okuthinta ukuqashelwa komamukeli kwamasignali angenantambo, ukuphazamiseka nomsindo nakho kungaba nomthelela.Isilinganiso se-signal-to-noise noma isilinganiso se-signal-to-interference-to-noise sivame ukusetshenziselwa ukukala umthelela wokuphazamiseka nomsindo kumasignali angenantambo.Isilinganiso sesignali kuya emsindweni kanye nesignali-to-interference-to-noise izinkomba zezobuchwepheshe eziyinhloko zokulinganisa ukwethembeka kwekhwalithi yokuxhumana yezinhlelo zokuxhumana.Uma isilinganiso sikhulu, singcono.
Ukuphazamisa kusho ukuphazamiseka okubangelwa isistimu ngokwayo kanye nezinhlelo ezahlukene, ezifana nokuphazamiseka kwesiteshi esisodwa kanye nokuphazamiseka kwezindlela eziningi.
Umsindo ubhekisela kumasiginali angeziwe angajwayelekile angekho kusiginali yokuqala ekhiqizwe ngemva kokudlula empahleni.Lesi siginali ihlobene nemvelo futhi ayishintshi ngokushintsha kwesiginali yokuqala.
Isilinganiso se-Signal-to-noise ratio SNR (Signal-to-noise Ratio) isho isilinganiso sesignali nomsindo ohlelweni.
Isisho sesilinganiso sesignali-kuya-nomsindo sithi:
I-SNR = 10lg (PS/PN), lapho:
I-SNR: isilinganiso sesignali-kuya-kumsindo, iyunithi yi-dB.
PS: Amandla asebenzayo esignali.
PN: Amandla asebenzayo omsindo.
I-SINR (Signal to Interference plus Noise Ratio) ibhekisela esilinganisweni sesiginali nesamba sokuphazamiseka nomsindo ohlelweni.
Isisho sesilinganiso sesignali-kuya-kuphazamiseka-kuya-nomsindo sithi:
I-SINR = 10lg[PS/(PI + PN)], lapho:
I-SINR: Isilinganiso sokuphazamiseka-kuya-kumsindo, iyunithi yi-dB.
PS: Amandla asebenzayo esignali.
I-PI: Amandla asebenzayo esignali ephazamisayo.
PN: Amandla asebenzayo omsindo.
Lapho uhlela futhi uklama inethiwekhi, uma zingekho izidingo ezikhethekile ze-SNR noma i-SINR, zingazitshwa okwesikhashana.Uma kudingekile, lapho uqhuba ukulingisa isignali yamandla enkambu ekwakhiweni kokuhlela kwenethiwekhi, ukulingisa kwesilinganiso sokuphazanyiswa kwesignali kuzokwenziwa ngesikhathi esifanayo.
Isikhathi sokuthumela: Feb-20-2024
