Physical nature and technical attributes of the geostationary orbit

De-orbit project of GEO satellite in the end of lifetime

地球静止轨道卫星寿命末期离轨方案研究

The Determination of Attitude and Control Strategies for Double Spin Geostationary Satellites

地球静止轨道自旋卫星姿态确定及控制策略

Design of Thermal Control Technology of Imaging Radiometer for GEO Satellite

某地球静止轨道卫星成像辐射计热控设计

The Principle of Station-keeping and Maneuver Strategies of Geostationary Communication Satellites

地球静止轨道通信卫星位置保持原理及实施策略

An Optimized Sensor for Geostationary Orbit Satellite Payload ORBIT OF LIGHT

地球静止轨道卫星有效载荷可优选凝视型光学遥感器

The key technologies used to control FY-2 geostationary meteorological self-spin stabilized satellites were introduced in this paper.

介绍了风云二号（FY2）地球静止轨道自旋气象卫星工程测控的关键技术。

Traditional geostationary orbit ( GEO) satellite communication has been unable to meet the demand of the market, LEO satellite mobile communications system attracts increasing attention because of its short propagation delay and small transmission loss.

传统的地球静止轨道（GEO）卫星通信已不能满足市场的需求，低轨卫星移动通信系统由于其传播时延短、链路传播损耗小等优点，越来越受到人们的重视。

Considering the feathers of GEO satellite, a new algorithm of autonomous orbit determination of GEO satellite using GPS is proposed in this paper, which is integral and filtering. This algorithm integrates GPS with numerical integral of kinetic model by Kalman filtering.

针对地球静止轨道卫星的特点，提出了一种自主定轨的新算法&积分滤波算法，即利用Kalman滤波进行动力学模型数值积分与GPS定轨的有效融合。

The several methods of determining the orbit of geostationary satellites using GPS are summarized. The calculation demonstration is carried out according to the method of determining the orbit of geostationary satellites which only receive the signals transmitted by the GPS constellations.

总结了几种利用GPS对地球静止轨道卫星定轨的方法，并且对仅仅接收GPS星发射的信号来定轨这种方法进行了计算论证。

An approximate algorithm of orbit determination error analysis for geostationary ( GEO) satellite was presented based on the covariance analysis of dynamic orbit determination in this paper.

在卫星动力法定轨的协方差分析基础上，提出了一种针对地球静止轨道（GEO）卫星的简化定轨精度分析方法。

Trajectory estimation by geostationary early warning satellite is important in ballistic missile defense. Staring trajectory estimation algorithm is discussed with the help of nonlinear KALMAN filter based on Stirling interpolate approximation.

地球静止轨道预警卫星弹道重构是弹道导弹防御的一个重要环节，利用基于Stirling插值逼近的非线性KALMAN滤波方法，对凝视型弹道重构算法进行了研究。

Studies on Energy Expending and ( u, v) Coverage for Optical Synthetic Aperture Camera on Geosynchronous Orbit

地球静止轨道光综合孔径相机的能耗与（u，v）覆盖研究

New Algorithm of Autonomous Orbit Determination of GEO Satellite Using GPS

星载GPS地球静止轨道卫星自主定轨的新算法

The Feasibility of Determining the Orbit of Geostationary Satellites Using GPS

利用GPS对地球静止轨道卫星定轨的可行性

The Analyse of Imaging Quality of the Optical System in Geostationary Orbit

地球静止轨道区域凝视光学系统成像性能分析

Geometry Orbit Determination of GEO Satellite with Systematic Errors Using PDOP Weight

顾及系统误差的地球静止轨道卫星PDOP值加权几何法定轨

Alpine Mountain is the first in Hainan, the Hainan Island is a symbol, is also one of China's famous mountains, the International Tourism Organization as A-class tourist spot.

五指山是海南第一高山，是海南岛的象征，也是我国名山之一，被国际旅游组织列为A级旅游点。

China has become the fourth most popular destination for tourists worldwide, with more than 60 million trips made by people from other countries last year, according to the United Nations World Tourism Organization.

联合国世界旅游组织表示，中国已成为全球第四大最受欢迎旅游目的地，去年，由其他国家到访中国的游客超过6000万人次。

The UN World Tourism Organization has downplayed fears about traveling to and from Japan as radiation levels at the country's airports and ports are "well within safe limits".

联合国世界旅游组织已经对来往旅游的担心轻描淡写，因其国家机场及码头的辐射水平在人体的安全范围内。

Taleb Rifai, Secretary General of the UN World Tourism Organization, says the travel sector can also have an effect beyond its own boundaries, and boost other industries.

联合国世界旅游组织总干事塔勒布·瑞法依说，旅游可以跨疆域产生影响，也可以促进其他产业的发展。