I-radar ye-AESA vs PESAluthelekiso lwezakhiwo ezimbini ze-array eziskenwe ngombane. Zombini zilawula umqadi we-radar ngokulawula isigaba kwiindawo ezininzi ze-antenna, ngaphandle kokujikeleza i-antenna ngoomatshini kuyo yonke inguqu yokukhomba. Umahluko ophambili kukuba amandla e-RF aveliswa kwaye alawulwa phi: i-array eskenwe ngombane engashukumiyo (PESA) ngokubanzi isebenzisa indlela yokudlulisela/yokwamkela ephakathi, ngelixa i-array esebenzayo eskenwe ngombane (AESA) isasaza iimodyuli ezininzi zokudlulisa/zokwamkela kuyo yonke i-aperture.
Yintoni umahluko phakathi kwe-AESA kunye ne-PESA Radar?
Umahluko phakathi kwe-AESA kunye ne-PESA radar ngokuyintloko luyilo lwe-RF olungasemva kwe-array. Itheyibhile engezantsi ishwankathela urhwebo lobunjineli oluhlala luqwalaselwa ngexesha loyilo kunye novavanyo lwenkqubo ye-radar.
| Uthelekiso | Iradar yePESA | I-AESA Radar |
|---|---|---|
| Uyilo lweRF | Umthombo we-RF onamandla aphezulu osasazwa ngenethiwekhi yokutya kunye nee-phase shifters | Iimodyuli ezininzi zokuhambisa/zokwamkela ezisasazwe ziqhagamshelwe kwizinto ze-antenna okanye ii-subarrays |
| Ulawulo lwemiqadi | Ulawulo lwesigaba se-elektroniki kulo lonke i-aperture | Isigaba se-elektroniki kunye nolawulo lwe-amplitude olune-agility ephezulu ye-waveform |
| Ubuchule bemisebenzi emininzi | Kuxhomekeke kuyilo lwenkqubo kunye nomcwangcisi weshedyuli | Ilungele kakuhle ukudibana ngokukhawuleza kokukhangela, umkhondo kunye neminye imisebenzi |
| Ukunyamezelana kwempazamo | Ukusilela kwe-RF-chain ephakathi kunokuba nefuthe elikhulu kwinqanaba lenkqubo | Ukusilela kwemodyuli nganye kudla ngokunciphisa ukusebenza kancinci kancinci endaweni yokumisa uluhlu olupheleleyo |
| Ubunzima | Ngokubanzi iimodyuli zeRF ezisebenzayo zimbalwa | Ulawulo lobushushu olufuna umlinganiselo ongaphezulu, ukulinganiswa, ulawulo kunye nokuhlanganiswa |
Yintoni i-PESA Radar?
A uluhlu oluskenwe ngombane olungashukumiyoisebenzisa uyilo lwe-transmitter/receiver olusebenzisa amandla aphezulu. Amandla e-RF adluliselwa kwinethiwekhi yokutya ukuya kwizinto ezininzi ezikhupha imitha, ngelixa ii-phase shifters ezilawulwa nge-elektroniki zilungisa isigaba kwi-element nganye ukuze ziqhube umqadi. Uluhlu ngokwalo lubizwa ngokuba yi-passive kuba i-aperture ayinayo i-active transmit/receiver module epheleleyo kwi-element nganye.
Iimpawu eziphambili zePESA
- Ukuskena nge-elektroniki:umqadi ungathunyelwa ngokukhawuleza ngaphandle kokuhambisa isakhiwo esipheleleyo se-antenna.
- Isizukulwana se-RF esisembindini:i-transmitter eqhelekileyo yondla i-aperture ngokusebenzisa izixhobo zokusasaza kunye nee-phase shifters.
- Uyilo olusekweyo:Itekhnoloji yePESA isetyenziswa kwiinkqubo ezininzi zeradar ezisemhlabeni, zaselwandle kunye nezomoya.
- Ubuchule obuxhomekeke kwinkqubo:Umthamo wokulandelela, ubuchule bokujika kwamaza kunye nesantya sokuskena kuxhomekeke kuyilo olupheleleyo lweradar, kungekuphela nje ekubeni i-aperture yiPESA.
Iingenelo kunye nokuNciphiswa kwePESA
I-PESA inokubonelela ngolawulo oluchanekileyo lwe-elektroniki olunemibhobho esebenzayo esasazwe kancinci kune-AESA. Oku kunokunciphisa ubunzima behardware ye-RF. Nangona kunjalo, ukulahleka kwenethiwekhi ye-feed kunye nokuxhomekeka kwi-transmitter ephakathi kunokuthintela ukusebenza kakuhle kunye nokunyamezelana kweempazamo. I-PESA akufuneki ichazwe ngokuzenzekelayo njenge-single-frequency okanye inqunyelwe kwithagethi enye; ezo mpawu ziyahluka ngokuphunyezwa kweradar.
Yintoni i-AESA Radar?
An uluhlu olusebenzayo oluskenwe ngombaneIqulethe iimodyuli ezininzi zokudlulisa/zokwamkela ezi-solid-state ezisasazwa kwi-antenna aperture. Imodyuli idla ngokulawula into enye ye-antenna okanye i-subarray encinci. Ulawulo lwedijithali luququzelela indlela yokusebenza kwesigaba, ubukhulu, ixesha kunye ne-waveform ukuze i-radar ikwazi ukuqhuba kwaye icwangcise imisebe ngobuchule obuphezulu.
Iimpawu eziphambili ze-AESA
- Iimodyuli zeRF ezisasaziweyo:Ukuveliswa kombane kunye nokwamkelwa kwawo kusasazwa kulo lonke i-aperture.
- Ulawulo lwe-Agile beam:Indawo yomqadi kunye ne-waveform zingatshintshwa ngokukhawuleza ukuxhasa imisebenzi yokukhangela, yokulandelela, yemephu kunye neyonxibelelwano apho inkqubo yenzelwe bona.
- Ukwehla kobuhle:Ukusilela kweemodyuli nganye kudla ngokubangela ukwehla kancinci kokusebenza endaweni yokulahleka ngokupheleleyo kwe-array.
- Ukulinganiswa kunye neemfuno zobushushu:Ukuthelekiswa kweemodyuli, ukususwa kobushushu, ukusasazwa kwamandla kunye nesoftware yokulawula zizinto ezibalulekileyo zokudibanisa i-AESA.
Iingenelo kunye nokuNciphiswa kwe-AESA
Uyilo lwe-AESA lunokubonelela ngokuthembeka okuphezulu, ulawulo oluguquguqukayo lwe-waveform, ucwangciso lwemisebenzi olukhawulezayo kunye nokukwazi okunamandla okulwa nokumelana ne-elektroniki. Ezi zibonelelo ziza nokubalwa okukhulu kwezixhobo, umzamo wokulinganisa, iimfuno zokupholisa kunye neendleko. Ukusebenza okwenyani kuxhomekeke kubungakanani bomngxuma, imvamisa yokusebenza, amandla okukhupha imodyuli, umfanekiso wengxolo, i-bandwidth, isithuba sezinto, i-angle yokuskena kunye nokusetyenzwa kwesignali.
Yeyiphi engcono: i-AESA okanye i-PESA?
Akukho mpendulo iqhelekileyo. I-AESA idla ngokukhethwa xa ukusebenza kwemisebenzi emininzi, ukunyamezelana kweempazamo kunye nokuguquguquka kwesimo samaza zezona zinto ziphambili. I-PESA inokuhlala iluncedo xa umsebenzi ofunekayo unokufezekiswa nge-RF chain ephakathi kunye noyilo olulula lwe-active-module. Iinjineli kufuneka zithelekise iimfuno zenkqubo ezinokulinganiswa endaweni yokukhetha kuphela ngesifinyezo.
Iimeko zokusasazeka nazo zibalulekile. Iindlela ezininzi, ukuvaleka kunye nokuhamba okunxulumeneyo kunokutshintsha inqanaba elifunyenweyo kunye nokuphindaphinda komlinganiselo, ngoko ke uvavanyo lweradar kufuneka luqwalaseleukufiphala kwetshaneli engenazingcingoecaleni koyilo lwe-array.
- Chaza i-frequency yokusebenza kunye ne-bandwidth ekhawulezileyo.
- Misela iimfuno zokugubungela iskeni, ukufumana, ukubekwa ecaleni kunye nokwahlulahlula.
- Misela iimfuno zokukhangela, zokulandelela kunye nexesha lemisebenzi emininzi.
- Vavanya amandla okuhambisa, uvakalelo lomamkeli kunye nobubanzi obuguqukayo.
- Hlaziya imiqathango yobushushu, yombane, yoomatshini kunye neyokusingqongileyo.
- Iindlela zokulinganisa isicwangciso, ukuqinisekiswa kunye nokulinganisa i-antenna.
I-Array Antennas kunye neNkxaso yoVavanyo lweRF evela kwi-RF MISO
I-RF MISO ngumvelisi kunye nomthengisi we-antenna ye-RF kunye ne-microwave exhasa uphando lwe-antenna, ukulinganisa kunye nokuhlanganiswa kwenkqubo. Asibonisi i-radar epheleleyo njenge-antenna enye engasebenziyo. Endaweni yoko, iinjineli zinokuvavanya izinto ezifanelekileyo kunye nezisombululo zokuvavanya ngokwebhendi ye-frequency efunekayo, i-gain, i-polarization, i-interface kunye ne-mechanical envelope.
Hlola i-RF MISOiimveliso ze-antenna zoluhlu, ii-antenna ezicwangcisiweyo, iiprobe zesikhokelo samazakwayeubuchule bokuvavanya i-antenna. Kuvavanyo lweprojekthi, bonelela ngebhendi yokusebenza, i-polarization, i-gain target, i-beamwidth, imfuneko yeskena, i-connector okanye i-waveguide interface, imiqathango yokufakela kunye neemeko zokusingqongileyo.
Imibuzo ebuzwa qho
Ngaba iiradar ze-AESA kunye ne-PESA ziyakwazi ukulawula imisebe nge-elektroniki?
Ewe. Zombini ezi zakhiwo zisebenzisa ubudlelwane besigaba esilawulwayo kuzo zonke izinto ze-array ukuze ziqhube umqadi ngaphandle kokujikeleza ngoomatshini i-aperture epheleleyo kwicala ngalinye lokuskena.
Ingaba i-AESA isoloko ingcono kune-PESA?
Hayi. I-AESA inika iingenelo ezibalulekileyo ekusebenzeni lula, ukuphinda-phinda kunye nokusebenza ngemisebenzi emininzi, kodwa ikwazisa i-hardware esebenzayo ngakumbi, ulawulo lobushushu kunye nobunzima bokulinganisa. Ukhetho oluchanekileyo luxhomekeke kumsebenzi kunye neemfuno zenkqubo.
Kutheni i-AESA ingaqhubeka isebenza emva kokusilela kwemodyuli?
Kuba ukuveliswa kwe-RF kunye nokwamkelwa kusasazwa kwiimodyuli ezininzi. Inani elilinganiselweyo lokusilela kweemodyuli ngokuqhelekileyo kunciphisa ukusebenza kwe-aperture okufumanekayo kancinci kancinci, nangona isiphumo esichanekileyo sixhomekeke kuyilo lwe-array kunye nendawo yempazamo.
Zeziphi iiparameter ze-antenna ezibalulekileyo kuvavanyo lwe-radar array?
Iiparameter ezibalulekileyo ziquka i-operating frequency, i-bandwidth, i-polarization, i-gain, i-beamwidth, i-sidelobe level, i-cross-polarization, i-element spacing, i-scan loss, i-impedance match, i-power handling kunye ne-electrical and mechanical interface.
Xoxa ngeMfuneko yakho ye-RF Antenna
Nxibelelana ne-RF MISO malunga noluhlu lwakho lweefrikhwensi kunye neemfuno zobugcisa zenkxaso yokukhetha imveliso.
I-imeyile: info@rf-miso.com|Ifowuni:+86 28 82695327 |www.rf-miso.com
Ixesha lokuthumela: Agasti-07-2023
