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R88M-U10030HA-B此次發(fā)射的兩顆北斗衛(wèi)星，在以往的8年可靠性設(shè)計(jì)基礎(chǔ)上，壽命提高到了12年。由于是北斗全球組網(wǎng)的探路者，衛(wèi)星上應(yīng)用的許多技術(shù)和產(chǎn)品都是第一次接受實(shí)際考驗(yàn)，并身兼多個(gè)重任。
　　中國(guó)航天科技集團(tuán)五院北斗導(dǎo)航衛(wèi)星系統(tǒng)總設(shè)計(jì)師謝軍說(shuō)：“剛剛發(fā)射成功的北斗導(dǎo)航‘雙星’上的新技術(shù)、新產(chǎn)品非常多，占到了衛(wèi)星全部產(chǎn)品的近八成，這在中國(guó)航天以前研制的衛(wèi)星上前所未有?！?br /> 　　R88M-U10030HA-B對(duì)航天器來(lái)說(shuō)，太空中的生活環(huán)境十分惡劣，沒(méi)有空氣，晝夜溫差很大，且要經(jīng)受電磁暴考驗(yàn)。因此兩顆衛(wèi)星在地面大型空間環(huán)境模擬器里進(jìn)行了熱平衡、熱真空試驗(yàn)，這也是國(guó)內(nèi)首次進(jìn)行。謝軍說(shuō)，經(jīng)歷過(guò)這些歷練，練就鋼筋鐵骨，適應(yīng)太空的生活就沒(méi)有問(wèn)題。
　　航天專家介紹說(shuō)，兩顆新的北斗導(dǎo)航衛(wèi)星進(jìn)入軌道正常工作后，要承擔(dān)多個(gè)重大使命，實(shí)際上也是重大挑戰(zhàn)。首先就是要在軌驗(yàn)證全球衛(wèi)星導(dǎo)航系統(tǒng)總體方案與技術(shù)體制，也就是在實(shí)際的太空環(huán)境中檢驗(yàn)整個(gè)導(dǎo)航系統(tǒng)的設(shè)計(jì)思路和技術(shù)構(gòu)想。
　　R88M-U10030HA-B這兩顆衛(wèi)星要驗(yàn)證首次在空間使用的星間鏈路技術(shù)。它們將與前面發(fā)射的第十七顆北斗衛(wèi)星一起實(shí)現(xiàn)星間互聯(lián)互通，共同開(kāi)展全球組網(wǎng)試驗(yàn)驗(yàn)證工作。
　　作為先行者，兩顆衛(wèi)星也將率先探測(cè)全球?qū)Ш叫l(wèi)星將面臨的電磁與空間環(huán)境，開(kāi)展電磁環(huán)境探測(cè)，監(jiān)測(cè)導(dǎo)航衛(wèi)星的干擾信號(hào)，為衛(wèi)星提供抗干擾性能設(shè)計(jì)依據(jù)。它們對(duì)空間環(huán)境的探測(cè)，將為后續(xù)導(dǎo)航衛(wèi)星研制、在軌保障積累扎實(shí)的數(shù)據(jù)。

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R88M-U40030HA
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