Gungwa Giraffe - chizvarwa chitsva

Twiza yeGungwa 4A radar imaging ine maantenna emadziro. Vadivelu Comedy Saab Photos

Iko kuenderera mberi kwekuvandudza nzira dzinonzwisiswa zvakanyanya dzekurwisa kwemhepo, nekunyanya kukoshesa kune inotungamirwa anti-ship missile, inomanikidza nguva dzose basa rekusimudzira kuvandudza iripo radar masisitimu kana kugadzira dhizaini nyowani. Iyo yeSweden inonetsekana Saab, ane maradhi emugungwa anozivikanwa pamwe chete seSea Giraffe, anga ari pamberi peiyi chikamu chemusika kwemakore anopfuura makumi matatu.

Nyanza Twiza radar mumakore apfuura akave akaratidzwa ne: PESA mhando antenna (ine passive electronic scanning), G / H inoshanda frequency bhendi uye yakakwira antenna kutenderera kumhanya (30-60 rpm), ichipa inokurumidza tactical mamiriro ekugadzirisa nguva. . Sarudzo yeG/H bhendi yakataurwa (frequency 5,4-5,9 GHz) yaive mhinduro yekukanganisa, ichipa hurefu hwemasisitimu anoshanda muzasi E/F bhendi (2,3-3,7 GHz) uye hunhu hwepamusoro hwema radar anoshanda. muI/J bhendi (8,5-10,68 GHz).

Nekuda kwekuti pari zvino, kunze kwekutyisidzira kwakajairwa kubva kumhepo, indasitiri yezvidiki zvisina kurongwa zvemuchadenga masisitimu (UAVs, colloquially inonzi drones) iri kukura nekukurumidza, iyo nyaya yekuona kunobudirira uye kurondwa kwezvinhu izvi (izvo zvinonzi C-UAV chiitiko). Saab haina mutsauko uye ikozvino inokoka vashandisi kuti vashandise chinhu chinozivikanwa seELSS (Enhanced Low Slow uye Diki). Inoshandisa zvakagadziridzwa algorithms anoshandiswa kwemakore mazhinji ayo ane basa reC-RAM basa (Counter Rocket, Artillery uye Mortar). Nekuda kweizvozvo, ivo vanonyanya kushanda mukuona, kuona uye kuronda zvinhu zvine inoshanda radar reflection area (AR) isingasviki 0,001 m2.

Pakutanga, mhuri yeTzava yeGungwa yaive nemhando: 50HC uye 150HC, muhafu yechipiri yemakore makumi mapfumbamwe vakabatanidzwa neSea Giraffe AMB (Agile Multi Beam) modhi.

Kufanana neaya apfuura, inoshanda muG / H renji uye inobvumidza iwe kuti uone zvinonangwa nemhepo pachinhambwe chinosvika 180 km. Iyo AMB modhi ndiyo yekutanga XNUMXD radar sisitimu mune yeSweden kambani portfolio, saka zvakare inoyera nemazvo kureba kwechinangwa. Iyo zvakare inoratidzirwa nehupamhi hwekunzwa uye kugadzirisa, iyo inobvumira kuti iwane zvinokandwa uye kuteedzera zvidiki uye nekukurumidza pamusoro pezvinhu (FIAC). Kutenda kune yakagadziridzwa dhizaini yeantenna uye madiki sidelobes akabatana nawo, i.e. Mwaranzi munzira isingadiwe, pamwe nekusiyana kwema frequency, radar iyi inopokana zvakanyanya neanoshanda uye asingaiti ekudzivirira-jamming matanho. Chizvarwa chechitatu cheiyi yakabudirira uye yakapararira radar system, inozivikanwa seMod C, yava mukugadzirwa.

Kumhuri yeAMB yemaradhi, ayo aive ekutanga "twiza dzegungwa" kugamuchira chimiro ichi, kugona kuronda mbiya dzinopfuura zana kwakasimbiswa ne100% chaiyo yekuzivikanwa mukana.

Ngarava dzekutanga dzakashongedzerwa neAMB Sea Giraffe musiyano dzaive dzeSweden Visby-class corvettes uye yedu Orkan-class missile ships. Parizvino, kune vashandisi vakawanda,

uye pakati pazvo zvakakodzera kutaura: United Arab Emirates (6 Baynuna-class corvettes), Algeria (2 MEKO 200AN frigates), Singapore (6 modernized Pobeda missile ships), Australia (2 Canberra-class kumhara ngarava) uye USA, iyo inogadzirwa pasi pezita rokuti AN/SPS-77(V)1. Parizvino, yakashandiswa pazvikepe zvinomwe zveUS Navy Independence (kunze kwe7 yakarairwa). Mutakuri mukuru weiyo radar yakatsanangurwa ichava chikepe chekumhara cheHershel "Woody" Williams. Musi waChikunguru 17 gore rino, Saab yakagamuchira imwe odha yeMbanza yeGungwa AMB, panguva ino yechikepe cheUS Coast Guard chevarindi vemahombekombe, Heritage. Inorongwa kuti pakupedzisira ivake pakati pegumi nerimwe ne31 mayunitsi emhando iyi. Vashandisi vatsva veSweden radar vachave mafrigate maviri ePhilippine Hamilton anotengeswa neUS manejimendi pasi pemaitiro eFMS. Parizvino, Saab, yakapihwa basa neUS Navy, iri kushanda mukugadziridzwa kweAMB, iyo, pasi pezita AN / SPN-11 (V) 25, icharova vese vatakuri vendege dzeAmerica uye ngarava dzinomhara uye ichagadzirirwa kufambiswa kwemhepo. kutonga, kutsiva iyo AN / SPN system mune iri basa.- 50C.

Muna 2014, kambani yeSweden yakaunza maviri matsva-anoronga radar masisitimu eGungwa Giraffe 1X uye yeGungwa Giraffe 4A. Chinhu chakajairika chechizvarwa chitsva ichi che "sea twiza" maAESA antennas, anoshandisa gallium nitride (GaN) semiconductors. Iyi yakakwirira-resistance semiconductor material inoratidzirwa, pakati pezvimwe zvinhu, nekuwana kashanu yakakwirira kudarika iyo inoshandiswa zvakanyanya gallium arsenide (GaAs) maitiro, pamwe chete nebhendi yakakura inowanikwa. Imwe bhenefiti ndiyo kudzikiswa kwenzvimbo yemasisitimu pachawo kubva pa15 mm2 (yeGaAs) kuenda pa12 mm2 (GaN).

Giraffe yeGungwa 1X haisiriyo chete yakanyanya compact radar mupotfolio yekambani yeSweden, asiwo imwe yeakanyanya compact 1D masisitimu pamusika. Inopa zvakada kuita zvakafanana neiyo AMB musiyano nehafu yerenji uye yakareruka huremu. Gungwa Giraffe 100X inoshanda muI / J renji uye inobvumidza iwe kuona zvinhu zvinofambiswa nemhepo kureba inosvika zana km. Yayo 0,5 m kureba uye 1,0 m yakafara triangular chikamu antenna ine zvishoma, inorema anenge 100 kg (kusanganisira underdeck masisitimu, huremu hwese hwehurongwa huri pasi pe300 kg). Kune rimwe divi, izvi zvinowedzera huwandu hwevanokwanisa kutakura kunyange kumidziyo midiki (panguva yekuyedzwa, radar iyi yakaiswa paStridsbåt 20,5H yekumhara craft ine kutamiswa kwematani makumi mapfumbamwe chete), kune rimwe divi, iyo yakaderera. huremu hweantenna hunokubvumira kuti uiise yakakwirira kwazvo kuti uwedzere t .n. radar horizon. Zvimiro 90X ndezvekuti mazhinji emagetsi emagetsi anoiswa mukati meantenna pachayo uye chete kutonhora kwemhepo kunoshandiswa.