你tm别 了| 神舟十八号飞船新升级：续航更强、画质更好、径向对接更稳
Introduction:
Losing someone dear to our hearts is a heartbreaking experience that leaves a void which can never be filled. It is with heavy hearts that we remember and reflect upon the memories of a beloved person in our lives who is no longer with us. This article aims to pay tribute to the person we have lost, offering three distinct sections that delve into their legacy and impact. Though they may no longer be physically present, their spirit and influence will forever remain etched in our hearts.
Section 1: A Life Well-Lived
Every life carries with it a unique story, and the life of [Name], the person we mourn today, was no exception. From humble beginnings to remarkable achievements, their journey left an indelible mark on all those fortunate enough to have crossed paths with them. Their unwavering determination and resilience in overcoming challenges inspired everyone around them. Whether it was excelling in their chosen career, fostering meaningful relationships, or contributing to the community, their life embodied the essence of leading with purpose and leaving a lasting impact.
Section 2: Unforgettable Memories
As we reflect upon our cherished memories with [Name], an incandescent tapestry of moments floods our minds. From laughter-filled gatherings to profound conversations, each interaction with them was a testament to their vibrant personality and infectious enthusiasm. They possessed an innate ability to lift the spirits of others, showering warmth and love upon all those around them. In their presence, troubles melted away, replaced by a sense of joy and serenity that will stay with us forever. It is here, within the treasure trove of memories, that their spirit continues to shimmer and reside.
Section 3: The Legacy Lives On
Though we grieve their absence, it is through the continuation of their legacy that we honor them. [Name] instilled within us invaluable life lessons; they taught us to embrace compassion, resilience, and gratitude as we navigate our own journeys. Their unwavering belief in the human spirit inspires us to push beyond our limits and seek greatness in all aspects of life. As time goes on, their legacy will manifest in the lives they touched, ensuring that their spirit lives on through our actions and deeds.
Conclusion:
In bidding farewell to [Name], we acknowledge the pain of their absence while finding solace in the enduring impact they have left upon us. Their influence continues to shape the person we are today, guiding us towards a brighter future. As we navigate the path ahead, we cling to the memories, lessons, and virtues they imparted. In doing so, we celebrate their life, honor their legacy, and keep their spirit alive in our hearts. Though we may never truly get over their loss, we find strength in knowing that we were blessed to have shared a part of our journey with them, for memories of their presence will remain eternally cherished.
你tm别 了
中新网酒泉4月25日电 题：神舟十八号飞船新升级：续航更强、画质更好、径向对接更稳
记者 马帅莎
4月25日，神舟十八号载人飞船在长征二号F运载火箭的托举下，搭载着叶光富、李聪、李广苏3名航天员，从酒泉卫星发射中心点火升空，直赴九霄。
神舟十八号飞船是中国空间站进入应用与发展阶段的第三艘载人飞船。自神舟十二号任务起，神舟飞船开始采用批产模式。神舟十八号飞船虽然与神舟十六号、十七号飞船为同批次飞船，但仍有多项升级。
电池续航能力更强
神舟飞船是航天员实现天地往返的“生命之舟”，由轨道舱、返回舱和推进舱构成，共有14个分系统。电源分系统则是其中最为关键的系统之一。为整船在轨飞行提供电能的主电源、关键阶段可确保航天员安全的应急电源、推返分离后为返回舱提供电能的返回着陆电源……这些堪称飞船的“心脏”。
作为电源分系统的“老将”，镉镍电池已成功护航17次“神舟”飞天之路。在神舟十八号飞行任务中，锂离子电池接过镉镍电池的“接力棒”，电池扩容达30%。相比镉镍电池，锂离子电池比能量更高、循环寿命更长、高倍率充电更佳，且为整船减重了50公斤左右。此前，锂离子电池已成功在空间站、货运飞船等航天器上应用，安全性、可靠性已得到广泛验证。
专家称，神舟飞船主电源储能电池的升级有助于推动后续新批次飞船的持续改进，逐步提升飞船的载荷运输能力，为空间站运营提供更加稳定高效的在轨支持。
舱内画面更清晰
中国空间站已进入常态化运营模式，目前空间站及货运飞船中的相机已升级到1080P高清视频，但载人飞船由于整体方案沿用，且受测控体制和信道制约，仍维持原有的标清视频。为了提升神舟飞船返回舱的图像质量，科研人员尝试通过更迭软件来实现画质升级。
相机画质升级意味着原始数据倍增，然而，飞船内的相机原有资源在设计之初就是面向较小分辨率图像的处理传输，这使传输信道、处理能力、调度策略均出现瓶颈。对此，图像团队不断优化算法、反复迭代论证，最终让图像清晰度明显提升，人物面部细节也更加丰富。
“神舟舵手”更成熟
神舟十八号载人飞船入轨后，将对接于空间站天和核心舱的径向端口。相比与空间站的前向、后向交会对接，径向交会对接难度更高。空间站百吨级组合体对飞船测量敏感器的遮挡、空间站发动机工作时复杂的羽流影响，都给径向交会对接带来更大挑战。
这其中，GNC(制导导航与控制)系统是关键。GNC系统是神舟飞船的核心分系统，有“神舟舵手”之称，从飞船与火箭分离开始，到与空间站交会对接，再到撤离空间站、返回地球，都需要这名“舵手”的精准把控。
自空间站进入应用与发展阶段以来，神舟十八号飞船是第二艘实施径向交会对接的载人飞船。去年5月，神舟十六号飞船与中国空间站成功实现径向交会对接，神舟十八号飞船再次实施意味着中国自主研发的空间交会对接GNC技术进一步成熟。(完)
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