查询词典 ionosphere

It is also found that the ionosphere manifests the asymmetry in response to north- and southward horizontal winds and to day and night winds, and also shows latitudinal difference.

对电离层峰值高度响应水平中性风的数值计算表明，响应存在着对南北方向风的不对称性、日夜不对称性和纬度差异。

Can be used to describe the ionosphere and the magnetosphere of the electromagnetic field disturbance.

可用来描述电离层和磁层的电磁场扰动。

In midlatitude, the ionospheric response to southward turnings in summer and equinox and by night is stronger, which fades out with latitude decreases. During the recovery phase the irregular fluctuation in the ionosphere comes forth. In low-latitude, the disturbance caused by the turnings is strong in summer and equinox and weak in winter, although it tends to be immersing into the background disturbances.

在中纬，发生在夏分季和夜间的翻转能造成较强的电离层负响应，其幅度随纬度的降低而变弱，在恢复过程中存在不规则振荡；在低纬，南向翻转引起的电离层响应在夏分季较强，在冬季则较弱，且易被淹没在电离层自身的扰动中。

By measuring the instantaneous value of short-wave spectrum, we can get an important parameter of the local ionosphere, foF2, and then work out the MUF of the electrocircuit.

通过对测试结果进行统计分析可以得出：短波频谱的一阶矩ICF和电离层F2层临界频率f0F2具有很好的相关特性，通过测量短波频谱的瞬时值可以得到本地电离层的重要参量f0F2，进而可以计算出电路的最高可用频率。

The ability of the ionosphere to reflect these waves is dependent upon normal variations in the electron density at different levels.

电离层反射电波的能力取决于不同高度上电子密度的正常差别。

GPS radio occultation measurements are brand-new and highly effective, which can detect atmosphere and ionosphere, but still in the development and perfection.

GPS无线电掩星技术是崭新的、高效的地球大气层和电离层探测技术，但仍在发展和完善之中。

On the basis of setting up a model of the parallel transmission link of short-wave data communication system, this paper analyses the anti-noise performance of data communication in a non-selective Rayleigh gradually fading ionosphere channel, and derives the average error code rate formular and its curves.

在建立并发制短波数据通信系统模型的基础上，分析了非选择性瑞利慢衰落电离层信道中数据通信抗噪声性能，并导出了平均误码率公式，生成了误码率曲线，为雷达情报短波数据通信链路的仿真及效能评估提供理论依据

In this approach, double-differenced dual-frequency phase measurements and the known coordinates of reference stations as well as the precise ephemeris are used to rebuild observation equation, and then a Kalman filter is designed for the parameters estimation, i.e. ionosphere delay etc.

该算法使用双差双频相位、参考站精确的坐标和精密星历构造观测量，并用卡尔曼滤波来估计电离层参数，在给定显著水平的情况下，可以使用单个或少量历元以假设检验的方法探测和修复周跳。

In our views, the region of the CMI, near the ionosphere of Saturn (1 Saturn radius above the polar area), is regarded as the same area as the Saturn's Kilometric Radiation Source.In this paper, we deduce that the KHI will appear before 11 LT (Saturn's Local Time), the Alfven wave will take 383 min to reach Saturn, the sunward magnetic line will bend almost 80°. Finally, we get the distribution of SKR source. It locates from 7～9 LT at a relatively lower latitude to 18 LT at the eveningside.

本文求出了磁层顶附近开尔文-亥姆霍兹不稳定性发生在土星本地时（Saturn's Local Time）11 LT以前，得出了阿尔芬波沿磁力线传播到土星需要约383 min，求解出向阳面磁力线弯曲了约80°，最后得出土星千米波辐射源分布从黎明段的7～9 LT延伸到傍晚段的18 LT，并且黎明段分布的纬度比傍晚段低。

In our views, the region of the CMI, near the ionosphere of Saturn (1 Saturn radius above the polar area), is regarded as the same area as the Saturn's Kilometric Radiation Source. In this paper, we deduce that the Kill will appear before 11 LT (Saturn's Local Time), the Alfven wave will take 38.3min to reach Saturn, the sunward magnetic line will bend almost 80°. Finally, we get the distribution of SKR source. It locates from 7~9 LT at a relatively lower latitude to 18 LT at the eveningside.

本文求出了磁层顶附近开尔文－亥姆霍兹不稳定性发生在土星本地时(Satrun's Local Time)11LT以前，得出了阿尔芬波沿磁力线传播到土星需要约38.3min，求解出向阳面磁力线弯曲了约80°，最后得出土星千米波辐射源分布从黎明段的7~9LT延伸到傍晚段的18LT，并且黎明段分布的纬度比傍晚段低。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。