atmosphere density

Studies of Altitude Distribution of Earth 's Atmosphere Density

对地球大气密度随高度分布规律的讨论

Resolution Value of Reentry Vehicle Trajectory under Atmosphere Density Delamination

大气密度分层计算时的再入弹道解析解

A comparison is made between some widely used atmosphere density models by their performance in orbit determination and propagation of CHAMP satellite .

比较了几种常用的大气模型在CHAMP卫星定轨预报中表现。

Simulation result shows that AOTV can accomplish orbital transfer and save much fuel in the three " unknown " atmosphere density .

仿真结果表明，AOTV进入三种“未知的”大气密度模型中，不迫可以完成变轨任务，还可以极大地节省燃料。

The frequency shift is mainly caused by the variation of μ on the group path ( the variation of atmosphere density ) . The frequency shift caused by two factors mainly .

标准电波的频移主要是由两个方面的因素引起的：从积分路径上看，频移与群路径本身的变化有关，即与反射高度的变化有关；

The simulation result also verifies that the designed guidance law is correct and feasible , and it is able to compensate the disturb of atmosphere density in a large range .

仿真结果证明所设计的闭环导引律正确、可行，而且能够补偿大气密度大范围的扰动。

The influence of atmosphere density and initial velocity on the parachute inflation times , inflation distance and max strain of suspension-line were analyzed by the simplified model .

运用简化的模型初步分析了在不同大气密度、初始开伞速度下的充气环境对降落伞充气时间、充气距离，伞绳最大拉力的影响。

The four atmosphere density models are gotten from the four groups of different altitude data of Groves model , and their deviation ranges from the exponential model of standard atmosphere density are ± 67 % .

这四种大气密度取自Groves模型的四组不同纬度数据，其与标准大气密度指数模型的偏差范围为±67%。

In the paper , the varying model of atmosphere density with height is given by researches on method of autonomous navigation for satellite , actual state and basic change rule of atmosphere in calm fluxion layer , based on the experiment data of atmosphere density .

本文在研究卫星自主导航方法和大气折射原理及平流层大气的实际状态和基本变化规律的基础上，基于地球大气密度的实验数据，给出了平流层大气密度随高度变化的模型。

The difference of orbital energy consumption between formation flying satellites is studied using the model of atmosphere density including daily effect , and it is indicated that the drift is determined by the formation initial phase and the angle between orbital plane and the direction of solar-density-daily-peak .

基于包含周日效应的大气密度模型，研究了编队卫星轨道能量耗散的差异，进而指出大气摄动引起的构形漂移与构形初始相位、以及轨道面和太阳密度周日峰方向夹角之间存在的关系。

Effect of sintering atmosphere on the relative density and conductive properties of Ni-Fe spinel ceramics

烧结气氛对Ni-Fe尖晶石陶瓷致密化和导电性能的研究

After analyzing the 11-yr , 27 days and diurnal variation of upper atmosphere caused by solar activity , a calculation method for MET model atmosphere density is presented in which solar activity is taken into account .

该文分析了高层大气与太阳活动有关的11周年变化、27天变化以及周日变化，讨论了考虑太阳活动的MET模式大气密度计算途径，并且介绍了卫星大气阻力加速度模型。

A new method of precise star back scanning for reducing the influence of atmosphere refraction on the measurement accuracy of opto-electronic instrument is presented . Atmosphere refraction changes with the variation of atmosphere density , temperature and pressure .

由于蒙气差随着大气密度、温度和压力等条件的变化而变化，为降低蒙气差对光电测量设备测量精度的影响，提出了精密恒星回扫的新方法。

The simulation results show that the formulas proposed in the article accord with the change rules of atmosphere refraction , fit with the existing experience formulas , moreover take into account the influence of real varying of atmosphere density and with considerable practicality .

仿真结果表明，符合大气折射的变化规律，与现有的经验公式吻合较好，而且考虑了大气密度实际变化的影响，并有较大的实际应用价值。