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We discussed and analyzed its core technology based on summarized of the gradiometer's actuality and foreground inside and outside. We also put forward the development trace that adapt to the situation of our country. The purpose of this paper is to do some possible accumulate and reference for our country to develop gravity satellite and correspond Aeronautics and Space Administrations to launch satellites.

本文在总结国内外重力梯度仪现状及发展前景的基础上，论述、分析了卫星重力梯度测量中的一些关键技术，从中凸现了该技术的巨大优越性，在此基础上同时也是考虑形势需要提出了符合我国国情的重力卫星技术的发展方向，旨在为我国将来研制自主的重力卫星及航天部门发射卫星提供可能的积累和参考。

With the development of the ESA's GOCE mission and declaration of relative technology reports, we have many chances to know the GOCE satellite and its payloads, especially the gravity gradiometer. The paper introduces the gradiometer's measurement principle and instrument's design. All of this is based on tracking the development actuality, The purpose is to make more distinct and deeply understanding of this domain. Also we want to provide possible reference to some institutes when they study in this domain.

随着欧空局GOCE项目的进一步深入及相关技术报告的公布，人们对该卫星及其有效载荷有了更多的了解，尤其是倍受关注的核心器件重力梯度仪有了更多认识的机会，本文在跟踪当前欧空局研制中的星载重力梯度仪的测量原理、仪器设计的基础上进行了综合、分析和总结，以期对该领域的研究有更清晰、深入的了解，同时为国内进行该领域研究的机构提供可能的参考。

The one-tonne satellite carries a highly sensitive gradiometer that will allow scientists to plot tiny variations in the Earth's gravity field in three dimensions.

这颗1吨重的卫星携带了一个高敏感度的梯度仪，它使科学家们得以绘制地球重力场在三维空间的微小变化。

Satellite gravity gradiometry is a new domain of studying the detection of gravity gradients in space and their applications, in particular, suitable for detecting the short wavelength characteristics of the earth's gravity field At present it is still at the stage of developing the ultra-sensitive tensor gradiometer and carrying out the pre-research of applications.

卫星重力梯度测量是研究空间重力梯度探测与应用的新领域，特别适于检测地球重力场的短波特征。目前它尚处在研制超灵敏张量梯度仪器和应用预研究的阶段。

Satellite gravity gradiometry ; Ultra-sensitive gradiometer ; Gravity gradient tensor ; Earth's' gravity field model.

卫星梯度测量；超灵敏重力梯度仪；重力梯度张量；地球重力场模型

At the end the test of ground gravity solution from simulated satellite data and down continuation of airborne gravimetry are conducted.

提出并建立了球面小波正则化方法，建立了不适定问题的渐近逼近解，利用这种方法进行了模拟卫星数据反解地面重力位试验以及航空重力测量数据向下延拓试验。

How much force must be applied during liftoff to accelerate a 20-kg satellite just enough to counter the earth's gravitational acceleration o...

最佳答案： 1。在一个重约 20千克的卫星的起飞过程中，需要多大的力才能使其刚好抵消地球给它的重力加速度？

So the satellite in question is in the dark, over the Pacific or hours behind Greenwich in time zones.

因而该颗被谈论的卫星在太平洋上，或者在格林尼治时区之后的几个钟头是处于黑暗状态之下的。

Kalman filtering is affected by the gross error that is inevitable in the observation of satellite.

卫星观测数据中不可避免地存在着粗差，一般的Kalman滤波易受观测粗差的影响。

This paper constructs a new practical distance learning system that is low cost and high speed by the means of satellite LOG combining with ground connection well.

因此，本论文从实用角度出发，充分考虑各教育部门的现状，通过高速卫星通信线路和地面低速线路的

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。