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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">中国科学院西安光机所在空间激光通信捕获建链研究方面获进展 </h1> <p class="xg1"> 时间：2023-11-15 09:22<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(265)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=9905&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a>来自: 中国科学院西安光机所</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>近日，中国科学院空间精密测量技术重点实验室在空间激光通信捕获建链方面取得新进展并顺利完成在轨验证，相关研究成果以On-orbit Space Optical Communication Demonstration with 22s Acquisition Time为题，于2023 ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"> 近日，中国科学院空间精密<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>技术重点实验室在空间<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a><a href="http://ofc.oecr.com" target="_blank" class="relatedlink">通信</a>捕获建链方面取得新进展并顺利完成在轨验证，相关研究成果以On-orbit Space Optical Communication Demonstration with 22s Acquisition Time为题，于2023年11月发表于美国光学学会期刊《Optics Letters》。论文共同第一作者为光电跟踪室特别研究助理王轩和韩俊锋研究员，通讯作者为常志远。</p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"> 空间激光链路组网是实现空间激<a href="http://ofc.oecr.com" target="_blank" class="relatedlink">光通信</a>的基本条件，如何在短时间内快速、稳定地捕获建链是组网成功的关键，所以实现快速、大范围光束捕获和稳定的高带宽、高精度光束跟踪成为了核心技术热点。一般情况下，激光通信终端进入轨道初期通常需要花费大量时间完成同轴度在轨标校工作。卫星平台的姿态确定误差、轨道误差、环境变化引发的结构变形等原因会导致较大的不确定场（FOU），从而增加捕获难度，数十微弧度的光束发散角则使得在轨的双向捕获变得极为棘手。</p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"><font color="#333333"><span style="margin-right: auto; margin-left: auto; transition-duration: 0.2s; transition-timing-function: ease-in-out; transition-property: all; cursor: pointer; line-height: 2; font-size: 12pt; border-style: initial; border-color: initial; border-image: initial; height: auto;"><img src="http://opt.cas.cn/gb2019/xwzx/tpxw/202311/W020231114525675718568.png" width="600" alt="" oldsrc="W020231114525675718568.png" style="box-sizing: border-box; margin: 0px auto; padding: 0px 0px 10px; border: 0px; vertical-align: middle; display: block; max-width: 100%; height: auto;"></span></font></p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255); text-align: center;">图：同轨星间激光通信试验示意图</p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"> 为了更快地完成在轨激光通信链路捕获，研究团队提出一种利用激光通信终端星敏感器的安装矩阵参数在轨快速寻优方法。这种方法可以有效减小激光通信终端光轴和精密调节机构的安装位置由于卫星入轨应力释放带来的误差。巧妙地通过校正安装矩阵参数从而大幅度提升激光通信终端初始指向精度、减小不确定场范围，从而提升激光通信终端在轨扫描捕获概率，减少捕获时间。</p><span style="color: rgb(69, 69, 69); font-family: 宋体; font-size: 16px; background-color: rgb(255, 255, 255);"> </span><font color="#333333" face="宋体"><span style="margin-right: auto; margin-left: auto; background-color: rgb(255, 255, 255); transition-duration: 0.2s; transition-timing-function: ease-in-out; transition-property: all; cursor: pointer; line-height: 2; font-size: 16px; border-style: initial; border-color: initial; border-image: initial; height: auto;"><img src="http://opt.cas.cn/gb2019/xwzx/tpxw/202311/W020231114525675890157.png" width="600" alt="" oldsrc="W020231114525675890157.png" style="box-sizing: border-box; margin: 0px auto; padding: 0px 0px 10px; border: 0px; vertical-align: middle; display: block; max-width: 100%; height: auto;"></span></font><span style="color: rgb(69, 69, 69); font-family: 宋体; font-size: 16px; background-color: rgb(255, 255, 255);"></span><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255); text-align: center;"> 图2 在轨捕获建链实验结果</p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"> 此项研究工作基于光电跟踪室研究团队前期大量的<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>积累和在轨实验研究，得到了中国科学院重点部署项目和国家自然科学基金项目支持。（光电跟踪室 供稿）</p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"> 论文链接：https://doi.org/10.1364/OL.505966</p><p style="box-sizing: border-box; margin: 0px 0px 0.5em; padding: 0px; line-height: 2; font-family: 宋体; font-size: 16px; color: rgb(69, 69, 69); background-color: rgb(255, 255, 255);"><br></p><section microsoft="" yahei",="" simsun;="" margin:="" 0px;="" padding:="" background-color:="" rgb(255,="" 255,="" 255);"="" 255);="" overflow-wrap:="" normal;"="" 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value="true" class="pn"><strong>评论</strong></button></p> </form> <a name="comment_anchor_33953"></a> <dl id="comment_33953_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(33953, '9905');">引用</a> </span> <a href="http://club.oecr.com/space-uid-95165.html" class="xi2 xw1" c="1">yulong181</a> <span class="xg1 xw0">2023-11-15 10:52</span> </dt> <dd>为了VIP努力发文</dd> </dl><a name="comment_anchor_33952"></a> <dl id="comment_33952_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(33952, '9905');">引用</a> </span> <a href="http://club.oecr.com/space-uid-82338.html" class="xi2 xw1" c="1">alun</a> <span class="xg1 xw0">2023-11-15 10:22</span> </dt> <dd>顶下，挺好的。</dd> </dl><a name="comment_anchor_33951"></a> <dl id="comment_33951_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(33951, '9905');">引用</a> </span> <a href="http://club.oecr.com/space-uid-49300.html" class="xi2 xw1" c="1">ycl102</a> <span class="xg1 xw0">2023-11-15 09:52</span> </dt> <dd>不错 支持一个了</dd> </dl><a name="comment_anchor_33950"></a> <dl id="comment_33950_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(33950, '9905');">引用</a> </span> <a href="http://club.oecr.com/space-uid-87433.html" class="xi2 xw1" c="1">bull5180</a> <span class="xg1 xw0">2023-11-15 09:52</span> </dt> <dd>很好的话题 大家讨论哦</dd> </dl><a name="comment_anchor_33949"></a> <dl id="comment_33949_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(33949, '9905');">引用</a> </span> <a href="http://club.oecr.com/space-uid-97146.html" class="xi2 xw1" c="1">sust22404621</a> <span class="xg1 xw0">2023-11-15 09:22</span> </dt> <dd>沙发？？？</dd> </dl></div> </div> 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