Nidaamka Dayax-gacmeedka Beidou Navigation (BDS, oo sidoo kale loo yaqaan COMPASS, tarjumaadda Shiinaha: BeiDou) waa nidaam caalami ah oo hagitaan dayax-gacmeed ah oo si madax-bannaan loo sameeyay oo ay samaysay Shiinaha. Waa nidaamka hagitaan dayax-gacmeedka saddexaad ee qaan-gaar ah oo ka dambeeya GPS iyo GLONASS.
Jiilka Beidou I
Qaybinta heerka soo noqnoqda ee Beidou Generation I waxay inta badan ku lug leedahay kooxaha Adeegga Dayax-gacmeedka ee Go'aaminta Raadiyaha (RDSS), oo si gaar ah loogu qaybiyay kooxo kor iyo hoos u socda:
a) Xarig-xidhka Sare: Xarig-xidhkani waxaa loo isticmaalaa qalabka isticmaalaha si uu calaamadaha ugu gudbiyo dayax-gacmeedyada, iyadoo leh kala duwanaansho soo noqnoqosho ah oo u dhaxaysa 1610MHz ilaa 1626.5MHz, oo ka tirsan xarig-xidhka L. Naqshadaynta xarig-xidhkani waxay u oggolaanaysaa qalabka dhulka inuu codsiyada meelaynta iyo macluumaadka kale ee khuseeya u diro dayax-gacmeedyada.
b) Xariiqda Hoos u Socota: Xariiqdan waxaa loo isticmaalaa dayax-gacmeedyada si ay calaamadaha ugu gudbiyaan qalabka isticmaalaha, iyadoo leh masaafada soo noqnoqota ee u dhaxaysa 2483.5MHz ilaa 2500MHz, oo ka tirsan xariiqda S. Naqshadeynta xarriiqdan waxay u suurtagelinaysaa dayax-gacmeedyada inay bixiyaan macluumaadka hagitaanka, xogta meelaynta, iyo adeegyada kale ee lagama maarmaanka u ah qalabka dhulka.
Waxaa xusid mudan in qoondaynta heerka soo noqnoqda ee Beidou Generation I loogu talagalay inay buuxiso shuruudaha farsamada iyo shuruudaha saxnaanta booska ee wakhtigaas. Iyada oo la horumarinayo tignoolajiyada iyo casriyeynta joogtada ah ee nidaamka Beidou, jiilalka xigay, oo ay ku jiraan Beidou Generation II iyo III, waxay qaateen noocyo kala duwan oo soo noqnoqda iyo habab wax ka beddelka calaamadaha si ay u bixiyaan adeegyo hagitaan iyo meelayn oo sax ah oo la isku halleyn karo.
Jiilka Beidou II
Jiilka II ee Beidou, nidaamka jiilka labaad ee Nidaamka Dayax-gacmeedka Beidou Navigation (BDS), waa nidaam marin-hawleed dayax-gacmeed oo caalami ah oo si madax-bannaan loo heli karo oo ay Shiinuhu si madax-bannaan u horumariyeen. Iyada oo ku saleysan aasaaska Jiilka I ee Beidou, waxay higsaneysaa inay siiso adeegyo meelayn, marin-hawleed, iyo waqti-waqti sare (PNT) oo sax ah, isku hallayn sare leh isticmaalayaasha adduunka oo dhan. Nidaamku wuxuu ka kooban yahay saddex qaybood: meel bannaan, dhul, iyo isticmaale. Qaybta hawada sare waxaa ku jira dayax-hawleedyo badan oo marin-hawleed ah, qaybta dhulka waxay ka kooban tahay saldhigyada xakamaynta ee ugu weyn, saldhigyada la socodka, iyo saldhigyada kor u qaadista, halka qaybta isticmaaluhu ay ka kooban tahay aalado kala duwan oo qaabilaad ah.
Qaybinta band-ka soo noqnoqda ee Beidou Jiilka II waxay ugu horreyn ka kooban tahay saddex qaybood: B1, B2, iyo B3, iyadoo leh xuduudo gaar ah sida soo socota:
a) B1 Band: Kala duwanaanshaha soo noqnoqoshada ee 1561.098MHz ± 2.046MHz, oo inta badan loo isticmaalo adeegyada hagitaanka rayidka iyo meelaynta.
b) B2 Band: Kala duwanaanshaha soo noqnoqoshada ee 1207.52MHz ± 2.046MHz, oo sidoo kale loo isticmaalo adeegyada rayidka, iyadoo lala shaqeynayo kooxda B1 si loo bixiyo awoodaha booska laba-laabka ah si loo xoojiyo saxnaanta booska.
c) B3 Band: Kala duwanaanshaha soo noqnoqoshada ee 1268.52MHz ± 10.23MHz, oo inta badan loo isticmaalo adeegyada militariga, iyadoo bixinaysa saxnaan meelayn oo sareysa iyo awoodaha ka hortagga faragelinta.
Jiilka Saddexaad ee Beidou
Nidaamka Beidou Navigation System ee jiilka saddexaad, oo sidoo kale loo yaqaan Nidaamka Dayax-gacmeedka Caalamiga ah ee Beidou-3, waa nidaam marin-hawleed dayax-gacmeed oo si madax-bannaan loo heli karo oo ay Shiinuhu si madax-bannaan u dhistay oo u maamulaysay. Waxay gaartay heer caalami ah oo laga soo bilaabo daboolida gobolka ilaa caalamiga ah, iyadoo bixisa adeegyo sax ah, isku hallayn sare leh, marin-hawleed, iyo waqti-waqti ah oo loogu talagalay isticmaalayaasha adduunka oo dhan. Beidou-3 waxay bixisaa calaamado adeeg furan oo badan oo ku baahsan kooxaha B1, B2, iyo B3, oo ay ku jiraan B1I, B1C, B2a, B2b, iyo B3I. Qaybinta soo noqnoqoshada ee calaamadahan waa sidan soo socota:
a) B1 Band: B1I: Inta jeer ee bartamaha 1561.098MHz ± 2.046MHz, calaamad aasaasi ah oo si weyn loogu isticmaalo aaladaha kala duwan ee hagitaanka; B1C: Inta jeer ee bartamaha 1575.420MHz ± 16MHz, calaamad aasaasi ah oo taageerta dayax-gacmeedyada Beidou-3 M/I oo ay taageeraan terminaal cusub oo moobayl oo heer sare ah.
b) B2 Band: B2a: Inta jeer ee bartamaha 1176.450MHz ± 10.23MHz, sidoo kale waa calaamad aasaasi ah oo taageerta dayax-gacmeedyada Beidou-3 M/I waxaana laga heli karaa terminaalyada moobaylka ee cusub oo heer sare ah; B2b: Inta jeer ee bartamaha 1207.140MHz ± 10.23MHz, oo taageerta dayax-gacmeedyada Beidou-3 M/I laakiin waxaa laga heli karaa oo keliya terminaalyada moobaylka ee heerka sare ah.
c) B3 Band: B3I: Inta jeer ee dhexe ee 1268.520MHz ± 10.23MHz, oo ay taageerayaan dhammaan dayax-gacmeedyada Beidou Jiilka II iyo III labadaba, iyadoo taageero aad u fiican laga helayo modules-yada badan, ee soo noqnoqda badan.
Chengdu Concept Microwave Technology CO.,Ltd waa soo saare xirfadle ah oo ka shaqeeya qaybaha 5G/6G RF.eeIsgaarsiinta dayax-gacmeedka ee Shiinaha, oo ay ku jiraan shaandhada RF lowpass, shaandhada sare, shaandhada bandpass, shaandhada shaandhada/band stop filter, duplexer, qaybiyaha awoodda iyo isku xidhka jihada. Dhammaantood waxaa loo habeyn karaa iyadoo loo eegayo shuruudahaaga.
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Waqtiga boostada: Sebteembar-25-2024