China tsopano ili ndi analogue yake ya GPS: BeiDou-3 global satellite navigation system yakhazikitsidwa

Lero m'mawa ku China ku Great Hall of the People ku Beijing, Purezidenti wa People's Republic of China Xi Jinping adalengeza pakukhazikitsa njira yapadziko lonse ya satellite navigation system BeiDou-3 (mu Russian, Ursa Major). Mwambowu udawonetsa kukhudza komaliza kwa zochitika zitatu zaku China panjira imeneyi. Dongosolo la BeiDou-3 lidzalola kuti anthu aku China azigwiritsa ntchito satellite navigation m'makona onse a Dziko lapansi kwa nthawi yoyamba.

Zinatengera China zaka 3 kuti ifike ku BeiDou-26 system. Pulojekiti ya BeiDou-1 idakhazikitsidwa mu 1994 ndipo idalola kukhazikitsidwa ndi kuyesa ma satelayiti anayi panjira yoyendera ma satellite. Kuyambira mu 2004, gawo lachiwiri la polojekiti ya BeiDou-2 linalola dziko la China kuphimba dera lawo ndi makina oyendetsa satana, omwe amafunikira ma satelayiti 20 (asanu ndi mmodzi amasungirako ndikuyesa dongosolo). Gawo la kutumiza kwa BeiDou-3 lidayamba mu 2009 ndipo likuwoneka kuti latha mpaka pano.

Gulu la nyenyezi la BeiDou-3 limaphatikizapo ma satellites 30, asanu omwe amagwiritsidwa ntchito ngati nsanja yoyesera. Ma satellites ambiri omwe ali mugulu la nyenyezi la BeiDou-3 (zidutswa 24) amayikidwa m'njira yapakatikati ya Earth (pafupifupi 20 km altitude), zomwe ndizofala kuthetsa mavuto oyenda. Ma satellite oyenda a GPS yaku America, Russian GLONASS ndi European GALILEO amagwira ntchito pamalo omwewo.

Koma a ku China anapita patsogolo. Adatulutsanso ma satelayiti ena atatu munjira ya geosynchronous pamtunda wa 35 km ndi magalimoto atatu munjira ya geosynchronous orbit. Pachiyambi choyamba, ma satellites adayendayenda pazigawo zapadziko lapansi, ndipo chachiwiri, anayamba kulemba "chiwerengero chachisanu ndi chitatu" pa malo operekedwa. Kuyika kotereku kwa ma satelayiti apanyanja kunapangitsa kuti zitheke kuwirikiza kawiri kulondola kwa malo ku China ndi madera ozungulira. Chifukwa chake, ngati kulondola kwadongosolo la BeiDou-000 padziko lonse lapansi sikuli koyipa kuposa 3 metres, ndiye ku China komanso m'dera loyandikana nalo / m'madzi sikuli koyipa kuposa 10 metres.

Kukhazikitsidwa kwa satellite yomaliza yomaliza kutumiza gulu la nyenyezi la BeiDou-3 kunachitika pa June 23, zomwe tidakambirana posachedwa. lipoti. Kulowa muutumiki wa BeiDou-3 kumatanthauza kuti dziko la China siliyenera kudandaula kukana kugwiritsa ntchito GPS kapena machitidwe ena apadziko lonse lapansi. Tsopano ali ndi zake ndipo sizikuipiraipira.

Source:

• CGNT

Source: 3dnews.ru