计算结果表明,参数优化法可以提高卫星钟差短期预报的精度。
Calculating results show that the parameter optimization method can improve the precision of the satellite clock error short-term predicating.
用谱分析进行钟差预报的精度不高,但可以发现钟差时间序列中的主要周期变化;
The prediction precision of spectral analysis is very low, but the main period variations can be determined.
本文采用广义延拓法进行卫星精密星历插值、卫星精密钟差插值和GPS高程转换。
The thesis uses the generalized extended interpolation method in precise satellite ephemeris and clock bias interpolation and GPS height fits.
试验数据分析表明,测站钟差经一阶多项式拟合后的残差可近似为零均值的测量噪声;
The experiment data analysis results show that the clock residual error of monitor station after fitting by 1st order polynomial is approximately taken as noise with zero mean.
解决方案:Kerberos身份验证协议要求服务器和客户机之间的时钟差不大于5分钟。
Fix: the Kerberos authentication protocol requires that the clock skew between a server and a client is no greater than 5 minutes.
编队卫星的控制和应用需要确定编队卫星的运动状态,包括卫星绝对的和相对的位置、姿态以及钟差。
Control and application of satellite formation require measurement of the formation states, including absolute and relative position, attitude and clock bias separately.
针对相距公里级的编队卫星,相对状态估计精度为:相对位置达厘米级,相对姿态角达角分级,相对钟差达十纳秒级。
The results indicate that the accuracy of relative position reaches centimeter, the relative attitude reaches minutes and the clock bias reaches about ten nsec.
在声波的“头部”和“尾端”到达之间有30分钟的时间差。
There was a 30-minute time difference between the arrival of the "bow" and "stern" waves.
为赶上球队班车,他一路狂跑40分钟,可还是差了一点没赶上。
He ran for 40 minutes to catch the football team's bus, only to find it had just left.
我穿过站台走到路上,看到灯光照亮的表盘上是差十分钟十点。
I passed out on to the road and saw by the lighted dial of a clock that it was ten minutes to ten.
在差一刻钟12点我们有我们的午餐。
在我的测试中,两台电脑中较小的那台坚持了近五个小时(仅差几分钟),较大的那台坚持了5小时21分钟。
The smaller of the two machines lasted a few minutes shy of five hours in my test. And the larger one lasted five hours and 21 minutes.
时间在美妙的歌舞中过去,墙上的大钟突然映入灰姑娘的眼里,差5分钟12点。
All of a sudden, Cinderella caught sight of the clock on the wall. Oh, it is almost twelve o 'clock-five to twelve!
简:现在是差十分钟到五点吗?
浮钟式压力计可以用来测量计示压力或差压力。
Bell gages may be used to measure gage pressure or differential pressure.
不论是小睡90分钟或者醒着,受试者对低价值物品的记忆要差于对高价值物品的记忆。
After either a 90-minute nap or wake period subjects' memory for low-value objects was worse than for high-value objects.
为达到实时应用的效果,本文利用了差分定位方式,对应的观测时间就可减少到1分钟以内。
In differential mode, the effects of both SA and ionosphere are substantially removed, and the correlation time is reduced to about 1 minute.
等到最后一分钟完成一项困难的任务被作为绩效差的一种防御物。
Waiting until the last minute to start a difficult task can also be used as a defense for poor performance.
差十分钟到六点,让我们快点。
大约在六点差一刻。他今天五点半来接我,因为我们六点钟跟琼斯教授有个约会。
At about a quarter to six. Today he picks me up at five thirty, because we have an appointment with Professor Jones at six o'clock.
噢,差十五分就四点了。我四点钟有个生产会议。
Susan: Oh, it's a quarter to four, and I have a production meeting at four.
她丈夫禁不住想:只要差了一分钟,我们就可能没听到这姑娘的尖叫声,可能正开着车往家里赶,花环放在后座上,广播里放着经典调频。
Her husband couldn't help thinking: a minute either way and we might not have heard, might be heading home in the car, the wreath on the back seat and Classic FM on the radio.
我们只因差五分钟而未能见面。
“好吧,”他叔叔说,“现在是差一刻钟两点,去告诉你妈妈,三个小时后我们将来你家,因为我太忙了,我必须快点走…”。
"Well," says his uncle, "Now it is a quarter to two." Three hours later we are going to visit your family. Go and tell her about it, for I'm too busy.
指出了常用搬运钟法计算模型中存在的不足,给出了考虑搬运钟与标准钟速率差的计算模型。
The weakness of usual portable clock model is pointed out and a new model considering the rate between portable clock and standard clock is given.
我们差一分钟没赶上火车;我们到达站台时,它正好驶离车站。
We lost the train by about a minute; it was drawing out just as we arrived on the platform.
我们差一分钟没赶上火车;我们到达站台时,它正好驶离车站。
We lost the train by about a minute; it was drawing out just as we arrived on the platform.
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