查询词典 ionospheric

The mathematical models of the delay of the GPS signal in the circumstance are put forward respectively. The computation of orbital arc of the two satellite constellations is based on two body problem and perturbations models. An algorithm based on the IRI model and thin layer model is used to simulate the ionospheric delay of the GPS signal. The error models of observation, multipath, relativity and antenna phase center bias are also researched. Under the consideration of the autocorrelation of the electronical measurements, the autoregressive model of time series is introduced into the noise models.

在信号仿真中，研究了利用二体运动和摄动法计算LEO卫星至GPS卫星星座的几何距离的问题；在信号的误差模型中，研究了电离层时延的IRI2001模型和单层投影模型；讨论了观测误差、多径效应、相对论效应和天线相位中心偏移的误差模型；结合电子测量噪声的具有自相关特性的经验，研究了观测误差的AR模型；结合实测数据分析，讨论了接收机钟差和卫星钟差的误差建模问题。

Using the observed data obtained from stations all over the world and the related interplanetary and geomagnetic material, we study the response of global ionospheric F〓-layer parameter NmF〓 and hmF〓 to five typical different type geomagnetic disturbance events induced by different interplanetary magnetic cloud, by dividing the global ionosphere into high, middle and low latitude a ccording the variations of magnetic latitude, and adopting the UT/LT (universal time /local time) method.

利用全球电离层台站提供的观测资料及有关行星际、地磁观测资料，根据磁纬变化将全球分成高、中、低纬三个不同的区域，并采用了UT/LT的方法，分析了全球电离层F2层参数NmF2和hmF2对于五次由不同行星际磁云引起的不同类型地磁扰动事件的响应。

The ionospheric conductivity is influenced by solar activities and geomagnetic conditions and has some changes.

电离层电导率在不同的太阳活动和地磁条件下会发生变化。

Ionospheric observations have been playing an important role in the ...

对电离层的观测研究在该学科中一直占有重要的地位。

This mode is very sensitive to the ionospheric Doppler modulation.

这种模式是非常敏感的电离层多普勒调制。

It is an advanced model of an "ionospheric heater."

它是"电离层加热器"的一个高级版本。

This research will provide a feasible method for measurement of the ionospheric zonal velocity.

该研究为电离层不规则结构纬向漂移速度的测量提供了一种可行的方法。

It is suggested that when scintillation events are investigated, ionospheric TEC gradient is also one of considerable parameters.

我们认为研究电离层闪烁，特别是在缺乏S4指数时，电离层TEC梯度也可以作为一个重要的可选参数。

In this paper, we constructed an ionospheric data assimilation system based on Gauss-Markov Kalman filter and gave some test results.

本文给出了一个基于Gauss-Markov卡尔曼滤波的电离层数据同化系统的初步构建和试验结果。

Finally, a possible mechanism which could account for these pre-earthquake ionospheric perturbations is discussed.

最后，对震前出现的这些电离层异常的可能的物理机理进行了讨论。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。