网络 禅实践(Zen To Done);对流层天顶延迟;天顶总延迟(zenith total delay)
The most prominent problem in Zero Difference Type Output Mechanism (ZTD) is the problem of interference and strength between teeth.
零齿差机构的突出问题是齿轮的干涉与强度。
With the modify model of ZTD we can apply a new method for ZTD calculation of none auxiliary stations which can decrease the fee of the network and calculated time of GPS ZTD.
该模型为无网外辅助站对流层延迟的解算提供了一种新的方法,可以减少网络维持的费用和GPS解算对流层天顶延迟的时间。