I-trihedral reflector, ekwaziwa ngokuba sisibonisi sekona okanye isibonisi esingunxantathu, sisixhobo ekujoliswe kuso esisoloko sisetyenziswa kwii-eriyali nakwiinkqubo zerada.Iquka izinto ezintathu zokubonisa iplani ezenza isakhiwo esivaliweyo esingunxantathu.Xa i-electromagnetic wave ibetha isibonisi se-trihedral, iya kubonakaliswa ngasemva kwicala lesehlo, yenze amaza abonakalisiweyo alinganayo kwicala kodwa ngokuchaseneyo nesigaba samaza esiganeko.

Oku kulandelayo yintshayelelo eneenkcukacha kwizibonisi zekona yetrihedral:

Ulwakhiwo kunye nomgaqo:

Isibonisi sekona ye-trihedral siquka izibonisi ezithathu ezicwangcisiweyo ezisekelwe kwindawo eqhelekileyo yokuhlangana, zenza unxantathu olinganayo.Isibonisi ngasinye senqwelomoya sisipili senqwelomoya esinokubonisa amaza esiganeko ngokomthetho wokubonakalisa.Xa iliza lesiganeko libetha isibonisi sekona ye-trihedral, liya kubonakaliswa sisibonisi ngasinye seplani kwaye ekugqibeleni yenze iliza elibonakalisiweyo.Ngenxa yejometri ye-trihedral reflector, i-wave ebonakalisiweyo ibonakaliswe ngendlela elinganayo kodwa echaseneyo kune-wave yesiganeko.

Iimpawu kunye nezicelo:

1. Iimpawu zokubonakaliswa: Izibonisi zekona ze-Trihedral zineempawu eziphezulu zokubonisa kwi-frequency ethile.Inokubonakalisa i-wave yesiganeko umva ngokubonakala okuphezulu, ukwenza umqondiso ocacileyo wokubonisa.Ngenxa ye-symmetry yesakhiwo sayo, isalathiso se-wave ebonakalisiweyo ukusuka kwi-trihedral reflector ilingana nesalathiso sesiganeko kodwa sichasana nesigaba.

2. Isignali eyomeleleyo ebonakalisiweyo: Ekubeni isigaba samaza abonakalisiweyo sichasana, xa i-trihedral reflector ichasene nesalathiso sesiganeko, umqondiso obonakalisiweyo uya kuba namandla kakhulu.Oku kwenza isibonisi sekona ye-trihedral ibe sisicelo esibalulekileyo kwiinkqubo ze-radar ukuphucula umqondiso we-echo wethagethi.

3. I-Directivity: Iimpawu zokubonisa i-reflector yekona ye-trihedral zikhokelo, oko kukuthi, isibonakaliso esinamandla sokubonakalisa siya kuveliswa kuphela kwi-angle ethile yesiganeko.Oku kuyenza ibe luncedo kakhulu kwii-eriyali zendlela kunye neenkqubo ze-radar zokufumana kunye nokulinganisa iindawo ekujoliswe kuzo.

4. Ilula kwaye inoqoqosho: Ubume bekona ye-trihedral reflector ilula kwaye kulula ukuyivelisa kunye nokuyifaka.Ngokuqhelekileyo yenziwe ngezinto zetsimbi, ezifana ne-aluminium okanye ubhedu, enexabiso eliphantsi.

5. Iinkalo zesicelo: Izibonisi zekona ze-Trihedral zisetyenziswa ngokubanzi kwiinkqubo ze-radar, unxibelelwano olungenacingo, ukuhamba ngeenqwelomoya, ukulinganisa kunye nokubeka kunye nezinye iinkalo.Ingasetyenziswa njengokuchongwa okujoliswe kuko, ukusuka, ukufumana isikhokelo kunye ne-eriyali yokulinganisa, njl.

Ngezantsi siza kwazisa le mveliso ngokweenkcukacha:

Ukwandisa ukuqondisa kwe-eriyali, isisombululo esinengqiqo ngokufanelekileyo kukusebenzisa isibonisi.Umzekelo, ukuba siqala nge-eriyali yocingo (mayithi i-eriyali ye-dipole yesiqingatha-amaza), sinokubeka iphepha lokuqhuba ngasemva kwayo ukuqondisa imitha kwicala eliya phambili.Ukwandisa ngakumbi ukuqondisa, i-reflector yekona ingasetyenziselwa, njengoko kuboniswe kuMfanekiso 1. I-angle phakathi kwamacwecwe iya kuba ngama-90 degrees.

Umzobo 1. Ijometri yeKhona iReflector.

Ipateni yemitha yale eriyali inokuqondwa ngokusebenzisa ithiyori yomfanekiso, kwaye emva koko ubale isiphumo ngethiyori yoluhlu.Ukuze kube lula uhlalutyo, siya kucinga ukuba iipleyiti ezibonisayo azinasiphelo ngobungakanani.Umzobo we-2 ongezantsi ubonisa ukuhanjiswa komthombo olinganayo, osebenzayo kummandla ophambi kwamacwecwe.

Umzobo 2. Imithombo elinganayo kwindawo yamahhala.

Izangqa ezinamachokoza zibonisa ii-eriyali ezikwisigaba kunye ne-eriyali yokwenyani;ii-eriyali ze-x'd ngaphandle ziyi-180 degrees ngaphandle kwesigaba ukuya kwi-eriyali eyiyo.

Cinga ukuba i-eriyali yoqobo inepateni ye-omnidirectional enikwe ngu (()).Emva koko ipateni yeradiation (R) "yeseti elinganayo yeeradiyetha" zoMfanekiso 2 zinokubhalwa ngolu hlobo:

Oku ngasentla kulandela ngokuthe ngqo ukusuka kuMfanekiso 2 kunye nethiyori ye-array (k linani lamaza. Ipateni enesiphumo iya kuba ne-polarization efanayo ne-eriyali ye-polarized yasekuqaleni. Ukuqondisa kuya kwandiswa nge-9-12 dB. Le equation ingentla inika iindawo ezisasazwayo kwingingqi phambi kwamacwecwe Ekubeni sasicingela ukuba amacwecwe akanasiphelo, amasimi asemva kwamacwecwe anoziro.

I-directivity iya kuba yeyona iphakamileyo xa i-d i-half-wavelength.Ukucinga ukuba i-radiation element yoMzobo 1 yi-dipole emfutshane enepateni enikwe ngu (), amasimi ale meko aboniswe kuMfanekiso 3.

Umzobo 3. Iipateni ze-Polar kunye ne-azimuth zepateni ye-radiation eqhelekileyo.

Ipateni yeradiation, impedance kunye nokuzuza kwe-eriyali kuya kuphenjelelwa ngumgamadyoMzobo 1. I-impedance yegalelo inyuswe ngumbonakalisi xa isithuba sikwisiqingatha sobude be-wavelength;inokuncitshiswa ngokuhambisa i-eriyali kufutshane nesibonisi.UbudeLkwezibonakalisi kuMfanekiso 1 zikholisa ukuba yi-2*d.Nangona kunjalo, ukuba umkhondo we-ray uhamba nge-eriyali ka-y ukusuka kwi-eriyali, oku kuya kubonakala ukuba ubude bubuncinci ( ).Ukuphakama kwamacwecwe kufuneka kube kude kunento ekhuphayo;nangona kunjalo ukusukela ukuba i-eriyali zomgca azibengezeli kakuhle ecaleni kwe-z-axis, le parameter ayibalulekanga ngokubalulekileyo.