Ndikugwiritsa ntchito kwambiri ukadaulo wamagetsi obisika pazida zankhondo (makamaka ndege), kufunikira kwa kafukufuku wokhudza ma elekitiromagineti kumwazikana pazifukwa za radar kwakula kwambiri.Pakadali pano, pakufunika mwachangu njira yodziwira mawonekedwe amtundu wa electromagnetic kubalalitsidwa kwa chandamale, chomwe chitha kugwiritsidwa ntchito poyesa kuwunika kwamphamvu kwamagetsi amagetsi obisika komanso kubisika kwa chandamale.Muyezo wa Radar Cross Section (RCS) ndi njira yofunikira yophunzirira momwe ma elekitiroma amabalalitsira zomwe mukufuna.Monga ukadaulo wapamwamba pantchito yoyezera ndi kuwongolera zakuthambo, kuyeza kwa chandamale cha radar kumagwiritsidwa ntchito kwambiri popanga radar yatsopano.Ikhoza kudziwa mawonekedwe ndi kukula kwa mipherezero poyesa RCS pamakona ofunikira.Rada yoyezera molondola kwambiri nthawi zambiri imapeza chidziwitso chandamale poyeza momwe chandamale chikuyenda, mawonekedwe a radar ndi mawonekedwe a Doppler, omwe muyeso wa mawonekedwe a RCS ndi kuyeza mawonekedwe omwe akuwunikira.
Tanthauzo ndi mfundo yoyezera ya mawonekedwe a radar kumwazikana
Tanthauzo la mawonekedwe amwazikana Chinthu chikawunikiridwa ndi mafunde a electromagnetic, mphamvu zake zimabalalika mbali zonse.Kugawidwa kwapakati kwa mphamvu kumadalira mawonekedwe, kukula, kapangidwe ka chinthu ndi mafupipafupi ndi makhalidwe a funde la zochitika.Kugawa mphamvu kumeneku kumatchedwa kumwaza.Kugawidwa kwa malo kwa mphamvu kapena kufalikira kwa mphamvu nthawi zambiri kumadziwika ndi gawo lobalalitsa, lomwe ndilo lingaliro la cholinga.
Muyeso wakunja
Mulingo wakunja wa RCS ndikofunikira kuti mupeze mikhalidwe yomwaza ma elekitiroma ya milingo yayikulu yokulirapo [7] Mayeso am'munda wakunja amagawidwa kukhala mayeso osunthika komanso mayeso osasunthika.Kuyeza kwamphamvu kwa RCS kumayesedwa panthawi yowuluka kwa mulingo wa solar.Kuyeza kosunthika kuli ndi ubwino wina pa kuyeza kwa static, chifukwa kumaphatikizapo zotsatira za mapiko, zigawo zoyendetsa injini, ndi zina zotero pa gawo la mtanda wa radar.Imakwaniritsanso mikhalidwe yakutali bwino kuchokera ku 11 mpaka 11 Komabe, mtengo wake ndi wokwera, ndipo umakhudzidwa ndi nyengo, zimakhala zovuta kulamulira maganizo a chandamale.Poyerekeza ndi mayeso amphamvu, glint yowoneka bwino ndiyowopsa.Mayeso osasunthika safunikira kutsatira beacon yadzuwa.Cholinga choyezedwa chimakhazikika pa turntable popanda kuzungulira mlongoti.Pokhapokha poyang'anira ngodya yozungulira ya turntable, kuyeza kwa omni-directional kwa cholinga choyezedwa 360 kungatheke.Chifukwa chake, mtengo wamakina ndi mtengo woyeserera umachepetsedwa kwambiri Nthawi yomweyo, chifukwa chapakati pa chandamalecho ndi choyima chokhudzana ndi mlongoti, kuwongolera kwamalingaliro ndikokwera, ndipo muyeso ukhoza kubwerezedwa, zomwe sizimangowonjezera kulondola kwa antenna. kuyeza ndi kusanja, komanso ndikosavuta, kopanda ndalama, komanso kuwongolera.Kuyesa kosasunthika ndikoyenera miyeso ingapo ya chandamale.Pamene RCS imayesedwa panja, ndege yapansi imakhala ndi mphamvu yaikulu, ndipo chithunzi chojambula cha kuyesa kwake kwa kunja chikuwonetsedwa mu Chithunzi 2 Njira yomwe idabwera poyamba inali yopatula zolinga zazikulu zomwe zimayikidwa mkati mwa ndege yapansi, koma m'zaka zaposachedwa ndizosatheka kukwaniritsa izi Zimazindikiridwa kuti njira yothandiza kwambiri yothanirana ndi kusinkhasinkha kwa ndege yapansi ndiyo kugwiritsa ntchito ndege yapansi monga gawo la njira yowunikira, ndiko kuti, kupanga malo owonetsera pansi.
Muyezo wa compact range wamkati
Kuyesa koyenera kwa RCS kuyenera kuchitidwa pamalo opanda zowunjikana.Munda wa zochitika womwe umawunikira cholingacho sukhudzidwa ndi chilengedwe chozungulira.Chipinda cha microwave anechoic chimapereka nsanja yabwino yoyeserera mkati mwa RCS.Mulingo wowunikira wakumbuyo ukhoza kuchepetsedwa pokonzekera bwino zinthu zoyamwa, ndipo mayesowo amatha kuchitidwa pamalo owongolera kuti achepetse kukhudzidwa kwa chilengedwe.Malo ofunikira kwambiri a chipinda cha microwave anechoic amatchedwa malo abata, ndipo chandamale kapena mlongoti kuti ayesedwe amayikidwa pamalo opanda phokoso Kuchita kwake kwakukulu ndi kukula kwa mlingo wosokera m'dera labata.Magawo awiri, reflectivity ndi chibadidwe cha radar cross section, amagwiritsidwa ntchito kawirikawiri ngati zizindikiro za microwave anechoic chamber [. chachikulu, ndipo kutalika kwa mafunde ndi kwakufupi kwambiri.Mtunda woyesa R uyenera kukhala waukulu kwambiri.Kuti athetse vutoli, ukadaulo wapamwamba kwambiri wa compact range wapangidwa ndikugwiritsidwa ntchito kuyambira 1990s.Chithunzi 3 chikuwonetsa tchati choyezera chimodzi chowoneka bwino.Mtundu wophatikizika umagwiritsa ntchito mawonekedwe owonetsera omwe amapangidwa ndi ma paraboloids ozungulira kuti asinthe mafunde ozungulira kukhala mafunde a ndege pamtunda waufupi, ndipo chakudyacho chimayikidwa pa chowunikira Chomwe chimayambira pa chinthucho, motero amatchedwa "compact".Pofuna kuchepetsa taper ndi waviness wa matalikidwe a malo static zone ya yaying'ono osiyanasiyana, m'mphepete mwa kunyezimira pamwamba kukonzedwa kuti serrated.M'miyeso yobalalika m'nyumba, chifukwa cha kuchepa kwa kukula kwa chipinda chamdima, zipinda zamdima zambiri zimagwiritsidwa ntchito ngati zitsanzo zoyezera.Ubale pakati pa RCS () wa 1: s scale model ndi RCS () wosinthidwa kukhala 1: 1 kukula kwa chandamale ndi chimodzi + 201gs (dB), ndipo kuyesedwa kwafupipafupi kwa chitsanzocho kuyenera kukhala nthawi yeniyeni yeniyeni. Kuyesa kwa solar scale f.
Nthawi yotumiza: Nov-21-2022