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  • 现在的北斗和全球定位系统(GPS)的差距有多少? - 知乎
    希望不要冲突,要合作。 最后回答正题:北斗比GPS差的可能主要是市场(GPS已占80%)、全球监测站测卫星轨道(不友好国家不准设站)、黄金频率被占用,留给北斗的只有边角料频段。 但是这些困难都不是自身因素,只能笑着面对。 艰难困苦,玉汝于成。
  • 手机厂商宣传的双频GPS、四频北斗是什么?有什么用? - 知乎
    在手机发布的时候我们可以看到,宣传他们支持「双频GPS」,「四频北斗」,但有的手机只有单频GPS,双频北斗,这个数量的多少就是导致手机导航定位不准的的罪魁祸首! 下图为vivo X200手机支持的卫星及频段。
  • apple watch应该买GPS版还是蜂窝版? - 知乎
    又下了GPS版的, 幸好官网14天包退,话说回来,蜂窝版真的实用吗? 我算爱运动的,每周有4天是要户外跑6公里以上的,当初买watch也是看中运动这块,想不戴iPhone跑,试用了几次,不戴iPhone出去跑,发现自己也能接受,户外跑1个小时期间,其实也没有啥人联系
  • 什么是全球导航卫星系统(GNSS)技术? - 知乎
    在上述四种全球导航系统中,GPS 是历史最悠久的系统,于 1994 年起提供全球定位服务。 GPS 系统也在不断的升级和更新中,来提供更多的信号和更精准的定位服务。 2012 年,该系统的 Block IIF 卫星正式投入使用,Block III 卫星也在规划中。
  • How can I permanently disable Toyota GPS tracking?
    So my new truck allows Toyota to read every bit of info from my truck in real time including my GPS location and speed Now I have already turned off
  • Issues with Onstar, WiFi, GPS, Supercruise | Traverse Forum
    A few weeks ago - No Onstar, no gps, WiFi, Supercruise… System test found code U1615 Apparently there is a service bulletin #PIT6214 with message #B19DA for this problem So GM is aware with no repair at this time Dealership did a global relearn and said everything was working for now But nope! The only thing I can see that is working is
  • GPS NAVIGATION not working [SOLVED] | Tacoma World
    GPS NAVIGATION not working [SOLVED] Discussion in ' 3rd Gen Tacomas (2016-2023) ' started by EMKFLYER, Nov 3, 2015
  • GPS 干扰欺骗(spoofing)机是什么原理?它是如何伪装成卫星导航信号的? - 知乎
    下面讲讲更复杂的产生式干扰。 要了解产生式干扰,首先得了解GPS的定位原理。 2 卫星定位原理 GPS卫星系统的星座如图所示,均匀分布在6个轨道面上,不间断发射GPS信号,供接收机接收。 GPS接收机和卫星的拓扑关系如下图。 接收机接收到的时序如下图。




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