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
Iimveliso zokubonelela
AbaFundi be-Shortwave abaSebenza ngokuPhezulu
Abamkeli be-Ultra shortwave
Izixhobo eziguquguqukayo zokuphindaphinda
Imbonakalo yeMveliso

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 | |||||||||||||||







