电离层折射

三频GPS改正电离层折射误差高阶项的方法

GPS Triple - Frequency Methods of High - Order Ionospheric Refraction Correction

密云综合孔径望远镜的电离层折射误差改正

The correction of ionospheric refraction for Miyun aperture synthesis radiotelescope

在电离层折射研究中，分析电离层对GPS的主要影响，依据群延迟、

The main affection of ionosphere to GPS is analyzed .

GPS定位与定时中电离层折射误差高阶项的改正方法

Methods for Correcting Higher-Order Ionospheric Effects on the Positioning and Timing of GPS

网络RTK的电离层折射估算与改正

Evaluation and correction of ionospheric delay with network RTK

单脉冲雷达测量的电离层折射修正的研究

Researches on the Refractive Correction of the Ionosphere in Mono-pulse Radar Measurement

电离层折射引起的距离偏移和方向偏转分析

Analysis on the range-displacement and direction-deflexion induced by ionospheric refraction

射电天文中电离层折射的计算与改正

Ionospheric Refraction Correction in Radio Astronomy

用激光测人造卫星的距离和用普通光一样，不受电离层折射的干扰。

As with ordinary light , laser range measurements to satellites are not troubled by ionospheric refraction .

天波超视距雷达工作在高频短波波段，利用电离层折射来探测超远距离的空中或海上目标。

Over-the-horizon radar works in HF band , and can detect aircrafts and ships that are very far with the refraction of the ionosphere .

本文利用极坐标下斯涅尔定律，系统地讨论了电离层折射对赤经赤纬的修正问题，并据此给出了射线描迹法。

Using the Snell 's law in polar coordinates , the ionospheric refraction effects on the declination and right ascension determination is discussed in this paper .

这些工作虽然是针对密云米波系统的，但这些方法中的某些考虑可以推广到一般的电离层折射误差改正中去。

Although these methods presented here are for correcting the ionospheric refraction of Miyun System , yet some ideas of these methods can be used in other cases .

而“空洞”的形成直接影响到弹道的电离层折射修正方法，进一步证明了电离层实时测的必要性。

The ionospheric hole directly influences on the method of the ionospheric refractive correction for rocket orbit , and farther show that the real-time ionospheric measurement is necessary .

针对电离层折射引起的雷达波束在地面的距离偏移和波束的方向偏转，在水平分层和球面分层两种电离层模型中，得到的近似公式具有可扩展性，其精度高于文献中所给公式。

The range-displacement and direction-deflexion of radio induced by ionospheric refraction is analyzed in this paper , the approximative formula is expandable and more veracious than the formula given in literatures for both the plane and spherical ionospheric models .

超高频无线电波经过三维不均匀电离层的折射效应

Refractive effects on very high frequency radio waves through a three-dimensional inhomogeneous ionosphere

电离层等折射指数面速度剖面的无线电反演研究

A Study of Radio Inversive Method of Ionospheric Isorefractive Index Surface Motion Velocity Profile

然而由于GPS卫星信号受到多种干扰误差的影响，如星历误差、卫星钟差、电离层和对流层折射误差以及多路径效应等，使得实际测量结果常常难以达到规定的精度要求。

However , the GPS satellite signals are easy to be influenced by many kinds of disturbance errors , such as ionospheric and tropospheric errors , orbital errors , clock errors and multipath effect and so on .

这种方法可以减弱卫星的轨道误差、卫星钟差、接收机钟差、电离层和对流层的折射误差，从而提高定位的精度。

This solution help to reduce satellite orbit error , satellite clock error , receiver clock error and error due to ionospheric refraction and tropospheric refraction , therefore , give enhanced position accuracy .

在这个频率范围，电波可以通过高空中的电离层进行反射和折射，最后又回到地面，从而达到远距离通信的目的。

In this frequency range , wave height can be carried out in the ionospheric reflection and refraction , and finally back to the ground , so as to achieve the purpose of long-distance communication .

短波通信是指通过电离层的反射或折射后返回地面的电波传输的一种通信方式，被广泛应用于广播、导航和军事等领域。

Short-wave communication is a means of wave transmissions communication , which back to the ground by ionospheric reflection or reflection . It is widely applied to the field of broadcast , navigation , military affairs and so on .

研究了电离层对GPS观测信号的主要影响及电离层折射误差模型，总结了电离层双频改正模型。

The main effect on the GPS signals of ionosphere and ionospheric refractive model are researched in this paper ; then the dual-frequency corrected model of ionospheric refractive error is concluded .

本文通过对电离层形态结构的分析以及建立适当的模型来讨论电离层折射对干涉仪输出的影响，并提出了改正方案。

The influence of ionospheric refraction on the output of interferometer is discussed and the method used to correct it is suggested .

研究电滋波在电离层中传播时，把电离层看成等效介质，用电偶极子模型的方法导出电离层的折射率，并进行讨论。

Studying the propagation of electromagnetic waves in the ionosphere which is considered as an equivalent medium , the refractive index in the ionosphere is derived with the method of electric dipole model , and is discussed in this paper .