2) HEOS (highly eccentric orbit satellite)
高偏心轨道卫星
3) orbital eccentricity
轨道偏心率
1.
The results show that KBOs congregate in the resonant region and resonant KBOs have big orbital eccentricity;Orbital inclination distribution of classical KBOs is bigger than resonant KBOs;Perihelion dista.
对当前已观测到的具有可靠轨道根数、位于30~50 AU的Kuiper主带和50 AU以外Kuiper散射带的轨道半长径、轨道偏心率和倾角的分布特性分别进行了统计作图分析。
2.
The main tectonic events and climatic changes which occurred in the last 3Ma coincide with the Earth s orbital eccentricity changes having a period of about 0.
４Ｍａ周期上与地球轨道偏心率变化存在一致性。
4) eccentric-orbit geophysical observatory,EGO
偏心轨道地球物理观测卫星
5) satellite orbit
卫星轨道
1.
The theoretical analysis and simulation result indicate that the satellite orbit and attitude changes have a great influence upon the space-borne SAR imaging.
理论分析与仿真结果表明卫星轨道近似与姿态变化对星载SAR成像有较大影响,应根据不同的成像精度提出不同的卫星控制精度。
2.
And a comparison with GPS system of Galileo system is studied in the following aspects: the satellite orbit deployment,the frequency and signal design,the pseudo-satellite technology and signal service.
从卫星轨道布置方式、信号与频率设计方法、伪卫星技术及信号服务等几个方面与GPS进行了对比研究。
3.
The experiment result with real measurement shows that the new method can be used in real time autonomous satellite orbit determination with high accuracy.
实测数据的计算结果表明,新的定轨方法可以实时自主地得出卫星轨道的位置,并能达到较高的定轨精度。
6) satellite orbits
卫星轨道
1.
According to the limitation of the satellite orbits and spectrum resources,this paper puts forward some methods for making effective use of the satellite orbits and spectrum resources.
根据卫星轨道和频谱资源的有限性,提出了有效利用卫星轨道和频谱资源的几种方法。
补充资料：在AutoCAD中偏心圆锥与偏心圆台实体的画法
现在要画一个偏心圆锥,底面在WCS的XY平面上,圆心(0,0,0),半径100,顶点(300,0,400)在ZX平面上.
1)连接PA,PB. A(-100,0,0) B(100,0,0)
图1
在当前坐标下:
2)延长PA到C,使PA=CA;延长PB到D,使PB=DB;
3)连接CD;
4)以CD为直径画圆;
5)用XLINE命令中的二等分选项作角CPD的角平分线PO,交CD于O;
6)过O作CD的垂线,交圆于E,F;
图2
7)用三点UCS命令,取三点为:O,P,C;
8)过点O作PO的垂线GO,交PC于G;
图3
9)再次用三点UCS命令,取三点为O,F,G;
10)现在就可以画椭圆锥了!
cone-e-c-捕捉O点-捕捉F点-捕捉G点-a-捕捉P点;
图4
11)回到WCS,剖切椭圆锥
SL-选择椭圆锥-回车-XY-回车-捕捉P点.
12)删除辅助线条.
图5
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条