地球模型

基于OpenGL的地球模型仿真方法研究

Simulation Method of the Earth Model Based on OpenGL

采用分为4层的地球模型，各层的介质被看作Maxwell粘弹性体。

A four-layered earth model is employed . The media of layers are treated as Maxwell viscoelastic ones .

基于星载SAR的基本理论，给出了一种进行星载SAR回波信号模拟的椭圆地球模型和椭圆轨道模型，它们优于传统的球地球模型和圆轨道模型。

Based on the Spaceborne SAR theory , an elliptical earth model and an elliptical orbit model are proposed , which have some advantages over the traditional circular ones .

建立了旋转椭球体地球模型和椭圆轨道卫星轨道模型，在此基础上详细阐述了星载SAR中瞬时斜距的求解方法。

This dissertation is established the rotating ellipsoid Earth model and the elliptical satellite orbit and describes detailly the method for solving the instantaneous slant range of spaceborne SAR on this basis .

另外，上述结果更接近滞弹地球模型计算的结果，因此精确地测定长期潮Love数将对固体潮理论和地幔滞弹性提供重要的结束。

Furthermore , the results are closer to the inelastic solid Earth tide model than the elastic model . This manifests that precise determination of long period Love number can provide an important constraint to theories of Earth tide and Earth mantle inelasticity .

由PREM地球模型计算的洛夫数

Love numbers calculated with prem

采用Unscented卡尔曼滤波算法，对紫外敏感器测量精度、姿态误差、部分轨道参数以及地球模型对导航精度的影响进行了仿真验证。

Simulation is taken using the unscented Kalman filter to validate the effect of the ultraviolet sensor measurement precision , attitude error , certain orbit parameters and the model of earth shape on navigation precision .

基于PREM地球模型和4阶Runge-Kutta数值积分方法，解算了表面负荷Love数、体潮Love数和内部负荷Love数，探讨了不同Love数的空间分布特征及与信号频率依赖关系。

Based on the preliminary reference Earth model ( PREM ), The 4th order Runge-Kutta numerical integration technique was used to compute the Love numbers for the surface loads , body tides and internal loads . The spatial distribution and the frequency dependence of the Love numbers were investigated .

通过Surfer提供的COM对象来实现二维可视化，达到了程序控制自动绘图和批量绘图的目的，并利用IDL开发平台为用户提供了一个真实的三维地球模型操作环境。

It realizes 2 D Visualization by using COM object provided by Surfer and mapping automatically or as a batch and provides users with a true 3 D Earth Model operating environment by making the best use of IDL .

利用较新的1066A地球模型，对负荷勒夫数进行了重新推算，并依据负荷勒夫数组成重力、倾斜、应变及位移格林函数。

By using recent 1066A earth model , we have recalculated the loading love numbers and obtained loading Green 's functions for gravity , tilt and strain .

与莫氏地球模型对比，重力线应变和水位潮汐中，O1波与K1波潮汐因子的比值均显示了液态地核的振荡效应。

Comparing the results of gravity line strain and water level well with that of the theoretical value of Molodensky 's Earth Model , the factors of O 1 / K 1 show obviously the dynamic effect of the liguid-state earth core .

通过PREM地球模型检测了内核对章动振幅的影响，由此发现内核在亚毫角秒量级上影响主要的章动项，它和当今的观测精度是一致的。

By the PREM earth 's model , the influence of the inner core to the vibration range of nutation is checked . The main solution is that the inner core has effects to the main nutation terms in 0.1 mas , which is coincided with recent observation precision .

不同地球模型对负荷潮汐改正的影响

The effect of different earth models on the load tide corrections

球状径向不均匀弹性地球模型的固体潮应力

Tide Stress of the Radially Heterogeneous Spherical Elastic Earth Model

地球模型可视化及空间分析的研究

A Study of the 3D Visualization of Earth Surface and Spatial Analysis

弹性椭球地球模型的海潮效应

The Ocean Tidal Effects Computed on the Elastic-Ellipsoidal Earth Model

液核地球模型的自由摆动

Free wobble of the earth with a liquid core

讨论了大气折射的射线追踪算法和等效地球模型；

The radial - tracing algorithm and the effective earth model are discussed .

层状不均匀介质的一维地球模型物性参数反演

Inversion of 1-dimensional impedance in layered inhomogeneous nonabsorbing media

在侧向不均匀球形地球模型中环型解产生的重力场扰动

Gravity variation stemed from toroidal displacement field in a lateral heterogeneous earth modle

旋转弹性椭球地球模型的固体潮理论值计算

Calculation of the theoretical earth tides of a rotating elliptical elastic earth model

包括地球模型构造，地球数据库和卫星数据库的建立；

It includes : global modeling , building of global database and satellite database .

成层地球模型对体势力及表载的响应

The Response of a Spherically Stratified Earth Model to Body Force and Surface Potentials Load

各种地球模型的章动序列

The Nutation Series of Various Earth Models

本文给出了更为准确的地球模型、坐标系和轨道模型。

This paper presents the models of the elliptical earth and satellite with elliptical orbit .

不同地球模型和数值方法对重力负荷效应计算的影响

Influence of different earth models and numerical methods on the computing results of loading gravity tides

GEM10B地球模型在中国及其邻域内的重力垂直梯度分布

The distribution of the vertical gradient of gravity of gem 10B in China and its neighbouring regions

同时还证明了岁差表达式与地球模型无关。

At one time , it is proved that the expression of precession is independent of Earth model .

将它们化算到了球域上，得到的方程等于球对称弹性地球模型的运动方程加上扁率改正项。

The equations obtained are just that of a spherically symmetrical elastic Earth model plus elliptical correction terms .

通常是在地球模型范围内根据物性用一维褶积方法来模拟地震数据。

Conventionally , 1D convolution methods are used to simulate seismic data from the properties within the Earth model .