I-Chengdu Xike Microwave Communication Co., Ltd. kunye ne-xst ye-digital receiver co-operation case project
Iimveliso zokubonelela
Iimodyuli zomamkeli
Wideband Digital Receiver
Imbonakalo yeMveliso
Imfuno yoMthengi
I. Imvelaphi yeProjekthi
I-Chengdu XST Microwave Communication Co., Ltd, njengenkokeli kwicandelo le-RF microwave kunye nokhuseleko lombane we-electromagnetic, izibophelele ekuveliseni izinto ezintsha zobuchwepheshe kunye nokuphuculwa kwemveliso ukuhlangabezana nemfuno yemarike ehlala itshintsha. Kwaye i-XST, njengenkampani ehamba phambili kuyilo kunye nokuveliswa kwezinto ze-elektroniki ze-microwave, ibonelele ngekhwalithi ephezulu kunye nemveliso ephezulu yokusebenza kubathengi abaninzi kunye nokuqokelela okunzulu kwintsimi yeemodyuli zabamkeli kunye nabamkeli bedijithali. Le ntsebenziswano ijolise ekudibaniseni iingenelo zamaqela omabini ukubonelela ngezisombululo ezithe kratya zommkeli wedijithali kwi-Chengdu XST Microwave Communication Co., Ltd. kunye nokukhuthaza ngokudibeneyo uphuhliso lobuchwepheshe bomamkeli wedijithali.
II. Inkqubo yokuphunyezwa
Ukususela ekuqaleni kweprojekthi, i-XST igcine unxibelelwano olusondeleyo kunye nentsebenziswano kunye ne-Chengdu Xike Microwave Communication Co. Siye saziqonda iimfuno zomthengi kwaye sazibamba zonke iinkcukacha ukuqinisekisa ukuba iprojekthi inokuqhutywa kakuhle. Ngamashumi eminyaka ye-XST yamava kuyilo lwe-receiver kunye nokuveliswa, senze i-digital receiver ye-Chengdu Xike kunye neenzuzo zobuntununtunu obuphezulu, ukuchaneka okuphezulu, uzinzo oluphezulu, uyilo oluguquguqukayo kunye nokukwazi ukuphumeza imisebenzi enzima.
Ngexesha lokuphunyezwa kweprojekthi, sigxininisa ekusebenzisaneni kunye nempendulo kunye nabathengi. Kuzo zonke iindawo zokuyila, sineengxoxo ezinzulu kunye nomthengi ukuqinisekisa ukuba isisombululo soyilo sinokuhlangabezana ngokupheleleyo neemfuno zokwenene zomthengi. Kwangaxeshanye, sikwabonelela ngothotho lwenkxaso yobugcisa kunye noqeqesho kubathengi ukubanceda baqonde ngcono kwaye basebenzise iimveliso zethu.
III. Inkxaso yeNkonzo
Ukuze kuqinisekiswe ukuba abathengi banokufumana amava agudileyo kwinkqubo yokusetyenziswa, sinika uluhlu olupheleleyo lwenkxaso yobugcisa kunye nenkonzo emva kokuthengisa. Ukongezelela, sikwabonelela abathengi ngeenkonzo zokugcinwa rhoqo kunye nokulungiswa ukuqinisekisa ukuba abafumana idijithali banokusebenza ngokuzinzileyo ixesha elide. Iqela lethu lenkonzo emva kokuthengisa lihlala lilindile, lilungele ukubonelela abathengi ngoncedo olungxamisekileyo kunye neengcebiso zobugcisa.
Ngale ntsebenziswano, siziva ngokunzulu ukubaluleka kwentsebenziswano esondeleyo nabathengi bethu. Kwixesha elizayo, siya kuqhubeka nokuxhasa ingqikelelo 'yokugxila kubathengi' ukubonelela abathengi ngeemveliso ezikumgangatho ophezulu kunye neenkonzo ezifanelekileyo. Kwangaxeshanye, sikwajonge ngethemba ekusebenzeni namaqabane amaninzi ukukhuthaza ngokudibeneyo uphuhliso nokuyila kobuchwepheshe bonxibelelwano ngeemicrowave.
Iimpawu zeMveliso
20MHz ~ 3.3GHz wideband frequency reception range
Adjustable digital IF bandwidth ukuya kuthi ga kwi-20MHz
I/Q irekhoda yokuhambisa ukuya kwi-bandwidth ephezulu ye-500kHz, ivumela ukusetyenzwa kwesignali ngaphandle kwe-intanethi
Ixhasa ukuthotywa kwemiqondiso yosasazo ye-AM/FM kwaye ibonelela nge-analogue audio streaming interface.
Ukugcinwa komqondiso wokudlala kwenza kube lula ukubeka iliso ngokuthembekileyo, ukusetyenzwa kunye nokufumana imiqondiso yexesha elifutshane okanye ukuphazamiseka
I-LAN interface yolawulo olude kunye nemveliso yedatha
I-API ebhalwe kakuhle yokucwangcisa inkqubo okanye uphuhliso lwesicelo.
Ukusetyenziswa kwamandla aphantsi, ubunzima obulula kunye nobukhulu obudibeneyo buyenza ilungele ukuhlanganiswa kwenkqubo kunye nokufakwa.
Usetyenziso
• Abamkeli bamakhoboka kwiisistim ezihlanganisiweyo zokuthotywa kwejelo kunye nokuskena i-broadband spectrum
• Ukufunyanwa kweempawu eziphazamisayo kuthungelwano lukanomathotholo, ukunceda umsebenzisi ukuba aphelise ngokukhawuleza imithombo yokuphazamiseka
• Ukubekwa esweni kweenkonzo zikanomathotholo ezijoliswe kubasebenzisi kunye nokubeka iliso inani elikhulu leenkonzo zikanomathotholo kwiindlela ezahlukeneyo zokuskena
• Abamkeli bekhoboka kubasebenzisi abakhethekileyo bonxibelelwano, abanokugcina idatha ye-baseband yamajelo emxinwa ngexesha lokwenyani
• Ukufunyanwa kwee-transmitters ezincinci, kusetyenziswa i-differial spectrum function ukukhangela izixhobo ezincinci zokumamela zikanomathotholo.
| Iimpawu eziphambili zezobugcisa zemveliso | Iimpawu eziphambili zezobugcisa zemveliso | Iimpawu eziphambili zezobugcisa zemveliso | ||||||
| 1, idatha yeRF | 2, IF data | 3, Ukwenziwa komqondiso | ||||||
| uluhlu lwamaza | 20MHz ~ 3.3GHz | Uluhlu lokubonisa iSpectrum | 10kHz ~ 20MHz | ngokukhawuleza uFourier uguqule | I-intermediate frequency spectrum | 2048 amanqaku (Blackman window) | ||
| Ungeniso lweRF | imowudi yokubonisa | Ukugcinwa rhoqo, okuphakathi, kunye nokugcinwa okuphezulu | uhlobo lwedatha | Idatha ye-I/Q (i-16 bit echanekileyo) | I-Panoramic mid frequency spectrum kunye nokutshayela i-frequency spectrum | |||
| I-impedance yokufaka | 50Ω | IF bandwidth yokunciphisa | 15 izihluzo (3dB bandwidth) | 150/300/600 Hz/1.5/2.4/6/9/15 | Idatha yeSpectrum | Ubuncinci be-bandwidth yesitishi ukuya kuthi ga kwi-150Hz | ||
| VSWR | Imowudi yokwehlisa | AM, FM kunye ne-I/Q | Inqanaba lamandla entsimi | Ixesha lokugcinwa kwedatha yangempela | ||||
| Ukunciphisa igalelo | RF attenuator | Ubuninzi 30dB (1dB inyathelo) | ||||||
| I-intermediate frequency attenuator | Ubuninzi 20dB (1dB inyathelo) | |||||||
| Ukuchaneka kweAmplitude | ±1.5dB | |||||||
| Umkhethi wangaphambili | 20 MHz ~ 3.3 GHz | Ukupasa okuphezulu/ukupasa okuphantsi indibaniselwano yokucoca | ||||||
| Ingxolo coefficient | 20 MHz ~ 1.5 GHz (imowudi yengxolo ephantsi) | Amaxabiso aqhelekileyo 10dB | ||||||
| 1.5GHz ~ 3.3GHz (imowudi yengxolo ephantsi) | Amaxabiso aqhelekileyo 12dB | |||||||
| Inzuzo yekhonkco | Imowudi yengxolo ephantsi (indlela engundoqo) | Amaxabiso aqhelekileyo 50dB | ||||||
| Imo yesiqhelo (indlela engundoqo) | Amaxabiso aqhelekileyo 30dB | |||||||
| Imowudi yokugqwesa ephantsi (indlela engundoqo) | Amaxabiso aqhelekileyo 20dB | |||||||
| Indawo yesithathu yokuthintela (TOI) (igalelo) | Imowudi yokugqwesa ephantsi (kwibhendi) | Amaxabiso aqhelekileyo 12dB | ||||||
| Indawo yolawulo lwesibini (SOI) (igalelo) | Imowudi yokuphazamiseka ephantsi | Amaxabiso aqhelekileyo 50dB | ||||||
| ingxolo yesigaba | △f = 10 kHz, fc = 1GHz | Amaxabiso aqhelekileyo -95dBc/Hz | ||||||
| Mirror frequency suppression | ≥ 70dB | |||||||
| Ukuba Ukwala | ≥ 70dB | |||||||
| Impendulo yendalo eyintsalela | Amaxabiso aqhelekileyo -110dBm | |||||||