Ikimenyetso cya trihedral, kizwi kandi nk'icyerekezo cyerekana inguni cyangwa icyuma cya mpandeshatu, ni igikoresho cyoroshye cyane gikoreshwa muri antene na sisitemu ya radar.Igizwe na planari eshatu zigaragaza imiterere ya mpandeshatu ifunze.Iyo umuyagankuba wa elegitoroniki ukubise urumuri rwa trihedrale, bizagaruka inyuma yicyerekezo cyibyabaye, bigire umuraba wagaragajwe uringaniye mubyerekezo ariko bihabanye mugice nicyerekezo cyabaye.

Ibikurikira nintangiriro irambuye kumurongo wa trihedral:

Imiterere n'ihame:

Imfuruka ya mpandeshatu igizwe nibice bitatu byerekana icyerekezo gishingiye kumurongo uhuriweho, ugakora inyabutatu iringaniye.Buri cyerekezo cyerekana indege ni indorerwamo yindege ishobora kwerekana ibyabaye ukurikije amategeko yo gutekereza.Iyo impanuka yibasiye inguni ya trihedral, izagaragazwa na buri cyerekezo cyerekana hanyuma amaherezo ikazunguruka.Bitewe na geometrie yerekana urumuri rwa trihedral, umuraba wagaragajwe ugaragarira mubyerekezo bingana ariko bihabanye kuruta ibyabaye.

Ibiranga na Porogaramu:

1. Ibiranga gutekereza: Ibice bitatu byerekana impande zose bifite ibimenyetso byerekana byinshi murwego runaka.Irashobora kwerekana ibyabaye inyuma hamwe no kwerekana cyane, gukora ibimenyetso bigaragara.Bitewe nuburinganire bwimiterere yabyo, icyerekezo cyumuraba wagaragajwe uva kumurongo wa trihedrale uhwanye nicyerekezo cyibyabaye ariko bihabanye mugice.

2. Ikimenyetso gikomeye kigaragaza: Kubera ko icyiciro cyumuraba kigaragara kinyuranye, mugihe icyerekezo cya trihedrale kinyuranye nicyerekezo cyibyabaye, ibimenyetso byerekanwe bizaba bikomeye cyane.Ibi bituma impande eshatu zerekana ibintu byingenzi muri sisitemu ya radar kugirango uzamure echo yerekana intego.

3. Ubuyobozi: Ibiranga ibimenyetso biranga impande enye zerekana icyerekezo, ni ukuvuga ikimenyetso gikomeye cyo kugaragariza bizakorwa gusa muburyo bwihariye.Ibi bituma bigira akamaro cyane muri antenne yerekeza hamwe na sisitemu ya radar yo gushakisha no gupima imyanya.

4. Byoroshye kandi byubukungu: Imiterere yikigice cya trihedral yerekana ibintu byoroshye kandi byoroshye gukora no gushiraho.Ubusanzwe ikozwe mubikoresho byuma, nka aluminium cyangwa umuringa, bifite igiciro gito.

5. Imirima yo gusaba: Imirasire ya Trihedral ikoreshwa cyane muri sisitemu ya radar, itumanaho ridafite insinga, kuguruka mu ndege, gupima no guhagarara hamwe nizindi nzego.Irashobora gukoreshwa nkibiranga intego, intera, gushakisha icyerekezo na kalibrasi ya antenne, nibindi.

Hano hepfo tuzamenyekanisha ibicuruzwa birambuye ：

Kugirango wongere umurongo wa antenne, igisubizo kiboneye ni ugukoresha urumuri.Kurugero, niba dutangiriye kuri antenne ya wire (reka tuvuge igice cya kabiri cya dipole antole), dushobora gushyira urupapuro rwitwara inyuma yacyo kugirango rwerekeze imirasire yerekeza imbere.Kugirango urusheho kongera icyerekezo, imfuruka irashobora gukoreshwa, nkuko bigaragara ku gishushanyo cya 1. Inguni iri hagati yisahani izaba dogere 90.

Igicapo 1. Geometrie yerekana inguni.

Imiterere yimirasire yiyi antenne irashobora kumvikana ukoresheje ibitekerezo byamashusho, hanyuma ukabara ibisubizo ukoresheje inyigisho za array.Kugirango byoroshye gusesengura, tuzakeka ko ibyapa byerekana bitagira ingano murwego.Igishushanyo cya 2 hepfo cyerekana isoko ihwanye nogukwirakwiza, bifite agaciro mukarere imbere yamasahani.

Igishushanyo 2. Inkomoko ihwanye nubusa.

Uruziga rudomo rwerekana antene ziri mu cyiciro hamwe na antenne nyirizina;antenne ya x'd out ni dogere 180 zicyiciro kugeza antenne nyirizina.

Dufate ko antenne yumwimerere ifite icyerekezo cyose gitangwa na （）.Hanyuma imishwarara (R) ya "ihwanye na radiator ihwanye" ya shusho ya 2 irashobora kwandikwa nka:

Ibyavuzwe haruguru bikurikira mu buryo butaziguye uhereye ku gishushanyo cya 2 hamwe n’ibisobanuro byerekana (k ni umubare w’umuraba. Igishushanyo cyavuyemo kizagira polarisiyasi imwe na antenne yumwimerere ihagaritse polarize. Ubuyobozi buziyongera kuri 9-12 dB. Ikigereranyo cyavuzwe haruguru gitanga imirima irasa mukarere imbere yamasahani Kuva twakeka ko amasahani atagira iherezo, imirima iri inyuma yisahani ni zeru.

Ubuyobozi buzaba hejuru mugihe d ari igice-cyumurambararo.Dufashe ko imirasire yerekana ishusho ya 1 ni dipole ngufi hamwe nishusho yatanzwe na (), imirima yuru rubanza irerekanwa mumashusho 3.

Igicapo 3. Imiterere ya polar na azimuth yuburyo busanzwe bwimirasire.

Imirasire, inzitizi ninyungu za antenne bizaterwa ninteradIgishushanyo 1. Kwinjiza inzitizi yongerewe na ecran mugihe intera ari kimwe cya kabiri cyumuraba;irashobora kugabanuka mukwimura antene hafi yumucyo.UburebureLby'ibigaragaza mu gishushanyo 1 ni 2 * d.Ariko, niba ukurikirana imirasire igenda y-axis kuva antenne, ibi bizagaragazwa niba uburebure byibuze ().Uburebure bw'amasahani bugomba kuba burebure kuruta ibintu bimurika;icyakora kuva antenne yumurongo idasakara neza kuruhande rwa z-axis, iyi parameter ntabwo ari ngombwa cyane.