Dongosolo la Satellite Loyendera la Beidou (BDS, lomwe limadziwikanso kuti COMPASS, kumasulira kwa Chitchaina: BeiDou) ndi dongosolo lapadziko lonse lapansi loyendera satelayiti lomwe linakhazikitsidwa palokha ndi China. Ndi dongosolo lachitatu lotsogola loyendera satelayiti pambuyo pa GPS ndi GLONASS.
Mbadwo Woyamba wa Beidou
Kugawa ma band a pafupipafupi a Beidou Generation I kumakhudza makamaka ma band a Radio Determination Satellite Service (RDSS), omwe amagawidwa m'magulu a uplink ndi downlink:
a) Band ya Uplink: Band iyi imagwiritsidwa ntchito pazida zogwiritsa ntchito kutumiza zizindikiro ku ma satellite, okhala ndi ma frequency a 1610MHz mpaka 1626.5MHz, omwe ndi a L-band. Kapangidwe ka Band iyi kamalola zida zapansi kutumiza zopempha zoyikira ndi zina zofunika ku ma satellite.
b) Downlink Band: Band iyi imagwiritsidwa ntchito pa ma satellite kuti atumize zizindikiro ku zida za ogwiritsa ntchito, ndi ma frequency osiyanasiyana kuyambira 2483.5MHz mpaka 2500MHz, omwe ndi a S-band. Kapangidwe ka band iyi kamathandiza ma satellite kupereka zambiri zoyendera, deta yoyika, ndi ntchito zina zofunika ku zida zapansi.
Ndizofunikira kudziwa kuti kugawa ma frequency band a Beidou Generation I kunapangidwa makamaka kuti kukwaniritse zofunikira zaukadaulo ndi zofunikira pakulondola kwa malo a nthawi imeneyo. Ndi kupita patsogolo kwaukadaulo ndi kukweza kosalekeza kwa dongosolo la Beidou, mibadwo yotsatira, kuphatikiza Beidou Generation II ndi III, idagwiritsa ntchito ma frequency band osiyanasiyana ndi njira zosinthira ma signal kuti ipereke ntchito zolondola kwambiri komanso zodalirika zoyendera ndi malo.
Beidou Generation II
Beidou Generation II, dongosolo lachiwiri la Beidou Navigation Satellite System (BDS), ndi dongosolo loyenda pa satellite lomwe limapezeka padziko lonse lapansi lopangidwa palokha ndi China. Pomanga maziko a Beidou Generation I, cholinga chake ndi kupereka ntchito zolondola kwambiri, zodalirika kwambiri, zoyika, zoyendera, ndi nthawi (PNT) kwa ogwiritsa ntchito padziko lonse lapansi. Dongosololi lili ndi magawo atatu: malo, nthaka, ndi ogwiritsa ntchito. Gawo la malo limaphatikizapo ma satellite angapo oyendera, gawo la pansi limaphatikizapo malo owongolera akuluakulu, malo owunikira, ndi malo olumikizira, pomwe gawo la ogwiritsa ntchito limaphatikizapo zida zosiyanasiyana zolandirira.
Kugawa kwa ma frequency band a Beidou Generation II kumaphatikizapo ma frequency band atatu: B1, B2, ndi B3, ndi magawo enaake motere:
a) B1 Band: Mafupipafupi a 1561.098MHz ± 2.046MHz, makamaka amagwiritsidwa ntchito poyendetsa ndi kuyika anthu wamba pamalo oyenera.
b) B2 Band: Ma frequency osiyanasiyana a 1207.52MHz ± 2.046MHz, omwe amagwiritsidwanso ntchito makamaka pa ntchito za anthu wamba, kugwira ntchito limodzi ndi B1 band kuti apereke kuthekera koyika ma frequency awiri kuti awonjezere kulondola kwa malo.
c) B3 Band: Ma frequency osiyanasiyana a 1268.52MHz ± 10.23MHz, omwe amagwiritsidwa ntchito makamaka pa ntchito zankhondo, zomwe zimapereka kulondola kwapamwamba kwa malo komanso kuthekera koletsa kusokoneza.
Beidou Generation III
Dongosolo Loyendera la Beidou la m'badwo wachitatu, lomwe limadziwikanso kuti Beidou-3 Global Navigation Satellite System, ndi dongosolo loyendera la satellite lomwe limapezeka padziko lonse lapansi lopangidwa ndi kuyendetsedwa ndi China palokha. Lafika pamlingo wosiyana kuchokera kumadera osiyanasiyana kupita kudziko lonse lapansi, kupereka chithandizo cholondola kwambiri, chodalirika kwambiri, choyendera, komanso nthawi kwa ogwiritsa ntchito padziko lonse lapansi. Beidou-3 imapereka ma signal ambiri otseguka m'ma B1, B2, ndi B3 bands, kuphatikiza B1I, B1C, B2a, B2b, ndi B3I. Magawidwe a ma signal awa ndi awa:
a) B1 Band: B1I: Mafupipafupi apakati pa 1561.098MHz ± 2.046MHz, chizindikiro choyambira chomwe chimagwiritsidwa ntchito kwambiri muzipangizo zosiyanasiyana zoyendera; B1C: Mafupipafupi apakati pa 1575.420MHz ± 16MHz, chizindikiro chachikulu chomwe chimathandizira ma satellite a Beidou-3 M/I ndipo chimathandizidwa ndi ma terminal atsopano apamwamba oyenda.
b) B2 Band: B2a: Ma frequency apakati a 1176.450MHz ± 10.23MHz, komanso chizindikiro chachikulu chothandizira ma satellite a Beidou-3 M/I ndipo chikupezeka pa ma terminal atsopano, apamwamba kwambiri; B2b: Ma frequency apakati a 1207.140MHz ± 10.23MHz, othandizira ma satellite a Beidou-3 M/I koma amapezeka pa ma terminal apamwamba osankhidwa okha.
c) B3 Band: B3I: Ma frequency apakati a 1268.520MHz ± 10.23MHz, othandizidwa ndi ma satellite onse mu Beidou Generation II ndi III, ndi chithandizo chabwino kwambiri kuchokera ku ma module a multi-mode, multi-frequency.
Chengdu Concept Microwave Technology CO.,Ltd ndi kampani yopanga zida za 5G/6G RF.chifukwa chaKulankhulana kwa satellite ku China, kuphatikizapo fyuluta ya RF lowpass, fyuluta ya highpass, fyuluta ya bandpass, fyuluta ya notch/band stop, duplexer, Power divider ndi directional coupler. Zonsezi zitha kusinthidwa malinga ndi zomwe mukufuna.
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Nthawi yotumizira: Sep-25-2024