查询词典 ionosphere

In comparison with existing models,the derived models possess higher accuracy,are applicable to high and low elevation angles and targets located in lower atmosphere and ionosphere,have no restriction of range,do not involve the problem of apparent elevation angle rate and are convenient in practice.

与现有模型比较，所得模型精度较高，适用于高低仰角，目标可在低层大气与电离层内，没有距离限制，不涉及视在仰角变化率问题，便于实际应用。

By definition,for targets located in a spherically stratified lower atmosphere or ionosphere,this paper derives the residual error models［Formulae (14) and (20);(24) and (27);(57) and (59),(63) and (65)］ of elevation angle refraction errors,range refraction errors and range rate refraction errors corresponding to monopulse radar and trilateration radar.

提要 本文从定义出发，推导出目标在球面分层低层大气或电离层内仰角折射误差、距离折射误差和相应于单脉冲雷达与三站雷达的距离变化率折射误差的残差模型［式(14)与(20)；(24)与(27)；(57)与(59)，(63)与(65)］。

In this dissertation, GPS baseline solution precision is analyzed since the following aspects: 1, Different length baselines are processed and analyzed by single frequency model and ionosphere free model. 2, Basing on current single point positioning precision, certain coordinate error is added into fixed points to study the result. 3, Baseline is processed and analyzed with different observation vectors and their lineal combination models. 4, 24 hours observation was divide up to process baseline.

本文从以下几个角度研究了影响GPS基线解算精度的因素：1、采用单频和消电离层模式对不同长度的基线分别解算，对处理结果进行分析。2、根据目前单点定位精度给起始点加上适当的坐标偏差，研究起始点坐标偏差对基线处理结果的影响。3、选用不同的观测值及其线性组合，对基线解算结果进行研究。4、对24小时观测的数据分时段处理，分析观测时间段对基线处理结果的影响。

By analyzing the radar data, we got the climatologic characteristics of the high-latitude ionosphere F-region.

雷达数据分析结果表明，冬季异常是太阳活动高年的突出现象，而半年变化则出现在太阳活动低年。

In this dissertation, EISCAT radar observations and computer numerical simulation methods are involved to study the climatologic characteristics of polar ionosphere and their mechanisms, as well as the polar ionospheric responses to magnetospheric particle precipitation and convection electric field. Then, with the help of the numerical computation, the EISCAT data are employed to invert the energy spectra of auroral precipitating particles and their responses to magnetic storms and substorms.

本文联合利用EISCAT雷达数据和计算机数值模拟手段，以雷达探测数据为基础，数据分析和数值模拟、理论研究相结合，研究了极区电离层气候学特征与机制，磁层粒子沉降和对流电场对极区电离层的影响，并利用雷达数据反演极光沉降粒子能谱特征及其对磁暴和亚暴的响应。

It is well known that the ionospheric electric fields and currents play important roles in the ionosphere electrodynamics.

电离层中的电场、电流及其相关电动力学过程对电离层的形态、结构与变化有着十分重要的影响。

It has also been alleged that the HAARP, or "High Altitude Active Auroral Research Project", which can use the ionosphere as a giant antenna for broadcasting signals, may be used to entrain various mind/body states in large areas of the planet.

也有人指称haarp ，或"高频率活跃极光研究计划"，可利用电离层作为一个广播信号巨型天线，可用于在地球的大范围诱导大脑/身体状态。

Ionosphere can be divided into D layer, E layer and F layer.

电离层又可细分为 D层、E层和F层。

At the low point of the solar cycle, EUV radiation from the sun is weak and the density of charged particles in the F layer of the ionosphere is least.

在太阳周期的低点， EUV 辐射从太阳是微弱的并且密度荷电粒子在电离层的F 层数是最少。

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。

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。