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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">DARPA研发出无需GPS卫星的TIMU定位芯片 </h1> <p class="xg1"> 时间：2013-4-27 09:48<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1601)</em> 评论: 0</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>军队所用许多不同种类的武器都需要依赖GPS信号精确制导并摧毁敌方目标。如果GPS卫星系统由于故障或军事打击而出现停运，那么GPS导弹和炸弹就会失效。DARPA（美国国防部高级研究计划局）对于那些轨道中未受保护的卫星 ...</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">我们谈论到GPS卫星的时候，大部分人所想的是用户如何在车辆中使用GPS定位完成一个位置到另一个位置的导航。许多人对GPS的依赖越来越重，开车基本完全在依赖地图和GPS。如果说GPS的服务中断对普通消费用户来讲会让人找不到路的话，那么GPS中断对军队而言就是种灾难了，所以就需要一种能够替代GPS设备的补充方案。<BR><BR>军队所用许多不同种类的武器都需要依赖GPS信号精确制导并摧毁敌方目标。如果GPS卫星系统由于故障或军事打击而出现停运，那么GPS导弹和炸弹就会失效。DARPA（美国国防部高级研究计划局）对于那些轨道中未受保护的卫星遭到破坏令军方武器失效也招架不住。<BR><BR> <P><A href="http://www.oecr.com/data/attachment/portal/201304/27/094743gfjugg713kkj7f2t.jpg" target=_blank><IMG src="http://www.oecr.com/data/attachment/portal/201304/27/094743gfjugg713kkj7f2t.jpg"></A></P>所以DARPA的研究人员正研发一种名为TIMU的东西，全称定时与惯性<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>装置（Timing and Inertial Measurement Unit），这颗小小的芯片无需依赖GPS卫星就能在全球范围内进行导航。此<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">传感</a>设备有个6轴惯性测量单元，包括3个加速器和3个陀螺仪，在这个仅10mm的空间内还有高精度的主时钟。<BR><BR>DARPA表示，用这块芯片就能让硬件做相对精确的定位，它能够提供精确引导至目标位置的3个关键信息，分别是方向、加速度和时间。这颗芯片为6层二氧化硅设计，厚度50微米，仅相当于一根头发的厚度。另外TIMU也能应用于非军事领域，为民用GPS设备提供室内定位及那些GPS卫星无法覆盖到的地方。 <DIV><FONT color="#808080" size=2><IMG src="http://www.oecr.com/xwb/images/bgimg/icon_logo.png"> 已同步至 <a href="http://api.t.sina.com.cn/2200118572/statuses/3571634881615385" target="_blank">update的微博</A></FONT></DIV></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr><td> <a 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