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Iziko laseShanghai lefiziksi esetyenzisiweyo (i-siap), iakhademi yaseTshayina yezenzululwazi (cas) kunye ne-xst badibanisa izandla ukwakha i-top-notch high-performance high-performance ye-shortwave receiver

2025-02-24

Iimveliso zokubonelela

AbaFundi be-Shortwave abaSebenza ngokuPhezulu
Abamkeli be-Ultra shortwave
Izixhobo eziguquguqukayo zokuphindaphinda

Imbonakalo yeMveliso

umzekelo1.jpg

Imfuno yoMthengi

I. Imvelaphi kunye nentshayelelo
I-Shanghai Institute of Applied Physics (SIAP) ye-Chinese Academy of Sciences (CAS) liziko lophando elibalulekileyo kwinkalo yenzululwazi yenyukliya kunye nobuchwepheshe, kunye 'neLabhoratri ePhambili ye-Microinterface Physics kunye nokufunyanwa kwe-Chinese Academy of Sciences (CAS)', 'iLabhoratri engundoqo yaseShanghai yeCryogenic Superconducting kunye ne-High-Frequency Key Cavity ye-Cryogenic kunye ne-High-Frequency Key Cavity' Itekhnoloji yeFrequency Cavity'. ILabhoratri ePhambili yaseShanghai yoBubushushu obuphantsi Superconducting High Frequency Cavity Technology '. Amacandelo e-inverter aphuhliswe kule ntsebenziswano aya kusetyenziswa kwii-superconducting linear accelerators zezi labhoratri zingasentla, eziya kubonelela ngesisombululo esibalulekileyo kuphando olusetyenziswayo lobuchwepheshe benyukliya.
II. Indlela yeNtsebenziswano kunye noBuchule
Ngexesha lentsebenziswano, omabini amaqela agcine unxibelelwano olusondeleyo kunye nentsebenziswano. Ngokudibana rhoqo, iingxelo zenkqubela phambili kunye notshintshiselwano kwisiza, omabini amaqela aqinisekisa ukuba zonke iinkcukacha zobugcisa ziqondwa ngokuchanekileyo kwaye zamkelwa. Le ndlela yonxibelelwano esebenzayo ayikhawulezisi kuphela inkqubela phambili yophuhliso lwemveliso, kodwa iphucula umgangatho kunye nokusebenza kweemveliso.
III. IThekhnoloji yokuHlanganisa kunye neeMpumelelo
I-high-performance shortwave receiver elungiselelwe yi-XST ye-ASTRI ine-wide frequency coverage (ekwaziyo ukufumana izibonakaliso ze-shortwave zamaqela amaninzi amaninzi), amandla okunciphisa amandla (kungakhathaliseki ukuba yi-amplitude modulation (AM), i-modulation frequency (FM) okanye i-modulation ye-single-sideband (SSB), umamkeli we-shortwave angakwazi ukuyinciphisa ngokufanelekileyo ulwazi oluchanekileyo kunye nokubuyisela ulwazi oluchanekileyo iimpawu zokusasaza phantsi kweemeko zemozulu ezahlukeneyo kunye namaxesha exesha). (ukwazi ukuziqhelanisa neemeko ezahlukeneyo zemozulu kunye namaxesha eempawu zokusasazwa kwamaza amafutshane) kunye nezinye iimpawu zobugcisa kunye neenzuzo.
Ukusukela oko abafumana amaza amafutshane e-XST befakwe elebhu, baye baphumelela igama elihle labathengi ngokusebenza kwabo okugqwesileyo kunye nokusebenza kweendleko eziphezulu, kwaye bakhuthaze ukuveliswa nophuhliso lwenzululwazi yenyukliya nobuchwepheshe, benza igalelo elibalulekileyo kwinkqubela phambili yenzululwazi nethekhinoloji kunye nolwakhiwo lokhuselo lwelizwe.

Iimpawu zeMveliso Ipharamitha Iimfuno zesalathiso
• Iimpawu zeMveliso
• Ukuskena ngokukhawuleza
• Ubungakanani obubambeneyo
• Uzinzo oluphezulu
• Uvakalelo oluphezulu
Ukufumana uluhlu lwamaza 0.1MHz ~ 30MHz
Ingxolo yeSigaba ≤ -110dBc/Hz@10kHz
Ixesha lokutshintsha i-Synthesizer ≤ 500μs
Umfanekiso wengxolo ≤ 9dB
Usetyenziso Faka ulandelelwano lwesibini ≥ 70dBm
• Ulwamkelo lophawu olungenacingo
• Ukujongwa koonomathotholo, ukuphinda kuqwalaselwe kunye nonomathotholo
• Ulawulo lwe-spectrum
• Izixhobo zoVavanyo loNxibelelwano lwamaza amafutshane
• Isihlalutyi somqondiso wonxibelelwano lwamaza amafutshane
• Ukubeka iliso kukhuseleko nokhuseleko kunye nokuphulaphula
Isiphumo solandelelwano lwesithathu indawo yothintelo ≥ 30dBm
Isibuko ukwaliwa rhoqo 115dB
UKUBA ukwaliwa ≥ 115dB
IF Ukuphindaphinda 70MHz
Umqondiso wangaphakathi ongeyonyani ≤ -110dBm
IF Ububanzi 2MHz, 30kHz

 

Iimpawu eziphambili zezobugcisa zemveliso Iimpawu eziphambili zezobugcisa zemveliso Iimpawu eziphambili zezobugcisa zemveliso
1. Iimpawu zokuphindaphinda I-2, iDynamic, ubuntununtunu, kunye nokucinezelwa komqondiso wobuxoki 3. Iimpawu zefrikhwensi ephakathi
Igama lesalathisi ubuncinane eqhelekileyo ubuninzi manyani izimvo Igama lesalathisi ubuncinane eqhelekileyo ubuninzi manyani izimvo Igama lesalathisi ubuncinane eqhelekileyo ubuninzi manyani izimvo
Uluhlu lwamaza omamkeli 0.1   30 MHz   Ingxolo coefficient 59 9   dB Uvavanyo olupheleleyo lokuzuza Ukuphindaphinda okuphakathi   70   MHz  
Ubuncinci benyathelo lokuphindaphinda kwe-synthesizer   1   kHz   Inzuzo yekhonkco 55 60 61 dB Imowudi yebroadband 3dB bandwidth 2     MHz Imowudi yebroadband
Ixesha lokutshintsha i-Synthesizer     500 μs     56 57 dB Imowudi emxinwa 30     kHz Imowudi emxinwa
ingxolo yesigaba   -110 dBc/Hz @10kH   Ubuninzi be-RF attenuation   56   dB 1dB Ukunyathela 2MHz Ubungakanani bomxande we-coefficient     3   BW-60dB/BW-3dB
I-A/D Clock yokuphuma rhoqo   100   MHz   Ubuphezulu bokunciphisa amaza aphakathi   30   dB 1dB Ukunyathela 30kHz Ububanzi be-Coefficient yoxande     3   BW-60dB/BW-3dB
Ireferensi yomthombo wozinzo     ±0.1 ppm Yakhelwe kwireferensi yomthombo Ngenisa indawo yothintelo lolandelelwano lwesibini   30   dB Uvavanyo olupheleleyo lokuzuza Kwibhendi yokuguquguquka kokuphuma kwamaza aphakathi     1 dB ubushushu obuqhelekileyo bomoya
Uluhlu lokuhlengahlengiswa rhoqo   ±2   ppm Ulungelelwaniso lwasefektri Imveliso yolandelelwano lwesithathu kwindawo yokuphuma ngaphakathi kwebhendi   70   dB Uvavanyo olupheleleyo lokuzuza Isiphumo esiphakathi samaxesha aphakathi 1dB indawo yoxinzelelo 16     dBm  
            Mirror frequency suppression   30   dB   UKUBA Imveliso Impedance   50   Owu  
            Ukuba Ukwala   115   dB              
            Iimpawu zobuxoki zangaphakathi   -120 -110 dBm Iguqulelwe kwisiphelo songeniso, umlinganiselo wokuzuza ngokupheleleyo            
            I-RF igalelo elihambelana ne-impedance   50   Owu