The Effects of Time-varying Ionospheric Channel on HF Timing.
电离层信道的时变特性对短波授时的影响。
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。
The formation mechanism of the present ionospheric storm was discussed.
对暴变形态特征及其形成机制进行了一些初步讨论。
Envelope fading of reflecting signals on HF ionospheric channels is Rayleigh fading.
高频电离层信道反射信号的幅度衰落服从瑞利分布。
The results show that there are different disturbance at whole considered ionospheric heights.
计算结果表明，在低电离层和高电离层它们均有不同程度扰动。
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。
The SCM applied in ionospheric sounding radar makes the timing of coder in the radar programmable.
将单片机应用于电离层探测雷达中，软化了雷达编码器的时序。
In Global Positioning System (GPS), one of the major error sources is Ionospheric propogation delay.
电离层延迟误差是GPS定位中的一项重要误差源。
The principle and algorithm of ionospheric delay correction using a grid mapping scheme is introduced.
本文介绍了卫星信号电离层延迟的网格校正法原理和算法。
Judging from these and other ionospheric features over Wuchang, the lunar effect may serve as a common source.
联系武昌上空电离层其它某些参量的共同特点，有可能月致效应是其共同的推动源。
The monitoring of ionospheric scintillations is the basic to study the scintillation phenomena and its effects.
电离层闪烁观测是研究电离层闪烁现象及其效应的基础。
The altitude semi-analytic expansion of ion densities is a key problem in parameterization of physical ionospheric models.
离子密度随高度的解析展开是电离层物理模式参数研究中的一个关键技术。
The results are (1) at Wuchang, ionospheric scintillations exhibit not only diurnal variations but also seasonal variations.
结果表明：(1)武昌电离层闪烁不但有日变化，而且有季变化。
The formation and evolution of ionospheric irregularities are closely connected with the instabilities of ionospheric plasma.
电离层不规则结构的形成和演化与电离层等离子体不稳定性密切相关。
This is consistent with the generating conditions of the BSS (Broad Symmetric Structure) in the ionospheric heating experiments.
这与电离层加热实验中的宽对称结构(BSS)的产生条件相一致。
Doppler frequency shift observation of ionospheric high frequency echo is an important method for studying ionospheric disturbances.
电离层高频反射回波的多普勒频移观测是研究电离层扰动的一个重要方法。
Due to the ionospheric scintillation, the TEC enhancement couldn't be derived from temporal TEC variation curves in the high latitudes.
在高纬地区，由于电离层闪烁，从TEC时间变化曲线提取不出来总电子含量增加值。
Usually, ionospheric Total Electron Conten (TEC) variation with time can be viewed as a stationary random process under quiet conditions.
平静状态下电离层总电子含量(TEC)随时间的变化通常可以视为平稳随机过程。
With the kinetic equation of ionospheric plasma, the paper studies the influences of neutral winds on the ionosphere at middle-low latitude.
从电离层等离子体动力学方程出发，研究了磁暴期间中性风对中低纬度电离层的影响。
In this paper, with Rayleigh fading the random characteristics of multipath time delay and Doppler shift in HF ionospheric channels is discussed.
本文在瑞利衰落模型下，研究了高频电离层信道中多径时延与多普勒频移的随机特性。
At the same time, the longitudinal range and the positions of the two boundaries of the ionospheric convection pattern remain basically unchanged.
另一方面，电离层对流形态和晨昏对流圈的经向跨度及其两端的位置是基本不变的。
In order to get the crustal anomaly field, the main field, magnetospheric, ionospheric and induction fields from the Magsat data must be subtracted.
为了提取地壳异常场，必须从观测资料中消除主磁场、磁层场，感应场和电离层场。
The constant modulus blind equalization technique is investigated over a slow Rayleigh fading ionospheric channels with additive white Gaussian noise.
研究通过具有加性高斯白噪声的瑞利慢衰落电离层信道的恒模盲均衡技术。
With the simultaneously generated precision series, the response of ionospheric phase delay to the LEO satellite orbit biases is assessed and analyzed.
以同步生成的模拟精度序列为参照，就掩星观测中电离层延迟对LEO卫星轨道误差的响应程度进行了估计和分析。
Radio occultation technique can provide the Earth's ionospheric and neutral atmosphere with high accuracy, high vertical resolution and global coverage.
无线电掩星技术能提供高精度、高垂直分辨率、全球覆盖的地球电离层和中性层大气剖面。
The study results have foundational signification for further understanding morphological characteristics of ionospheric storms and predicting space weather.
研究结果对于深入了解电离层暴的形态学特征和空间天气预测具有基础性的意义。
Using the Snell's law in polar coordinates, the ionospheric refraction effects on the declination and right ascension determination is discussed in this paper.
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 Raytheon's technology, BAES was to develop the HAARP Ionospheric Research Instrument (IRI) to its maximum capabilities of "Full size or final IRI (FIRI)".
利用“雷神”公司的技术，BAES要将HAARP“电离层研究器械(IRI)”开发至其“全规模或最终IRI (FIRI)”的最大能力。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
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.
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。
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