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title="首页">首页</a><span>></span> <a href="/zimuzhong_Affiche.html" title="公司新闻">公司新闻</a><span>></span> <a href="/zimuzhong_AfficheCtg_2484637.html" title="其它">其它</a><span>></span> </div> </div> </div> <div class="appWrapper" id="app_35341130" role="draggable" data-type="app" data-appid="datumInfo" data-config="" data-state="true"> <div class="appMask"></div> <div class="appContent"> <div class="datum_info"> <h1 class="title">GPS时钟频率?？槭迪址椒?/h1> <div class="bgcolor_01"> <div class="bgcolor_sum"> <div class="left">日期：2021-11-10 01:21</div> <div class="right">浏览次数：898</div> </div> <div class="bgcolor_sum01"> 摘要： </div> </div> <div class="content"> <a href="http://www.thexpipe.com/zimuzhong_Product_8345069.html" class="keyword_inherit" name="keyword_inherit" target="_blank">GPS时钟</a>频率?？樘峁┧璧母髦质逼档男藕?，并输出定位时间信息、GPS接收机是否工作正常、输出的时间信号是否有效、时钟和频率处理?？榧せ钭刺?、异常告警等等。图1是GPS时钟?？榈脑硗?。<div><br> 常规时钟频率产生方法可以是晶体、铷钟等。但晶体会老化，易受外界环境变化影响，长期的精度漂移影响；原子钟长期使用后也会产生偏差，需要定时校准。而GPS系统由于其工作特性的需要，定期对自身时钟系统进行修正，所以其自身时钟系统长期稳定，具有对外界物理因素变化不敏感特性。晶体或铷钟以GPS为长期参考，可以获得低成本、高性能的基准时钟。现有同步时钟的比较如表1所示。</div><div><br> 在网络正常工作状态下，GPS时钟具有与GPS主钟相同的频率准确度；由于在某些特殊情况下GPS时钟信号会暂时消失，所以基于GPS的时钟?？橐话阈枰硪桓鐾獠渴敝幼魑蟊甘淙?，预留有外接时钟的时基和频标信号（如GLONASS、中国双星、铷原子钟等）接口。另外，GPS时钟其频率准确度还具有自身保持性能。<br><br><div><span style="font-size: 12pt;">尊敬的客户： </span></div><div><span style="font-size: 12pt;"> 您好，我司是一支技术力量雄厚的开发群体，为广大用户提供完整的解决方案和优良的技术服务公司。主要产品有</span><a href="http://www.thexpipe.com/zimuzhong_Product_10812061.html" class="keyword_inherit" name="keyword_inherit" target="_blank">时间同步服务器</a><span style="font-size: 16px;">、<a href="http://www.thexpipe.com/zimuzhong_Product_8373127.html" class="keyword_inherit" name="keyword_inherit" target="_blank">NTP服务器</a>、<a href="www.thexpipe.com" class="keyword_inherit" name="keyword_inherit" target="_blank">GPS北斗时钟系统</a></span><span style="font-size: 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