1)X-ray pulsarX射线脉冲星
1.Research on detectors in X-ray pulsars-based navigation system;基于X射线脉冲星导航系统探测器研究
2.Use of X-ray pulsar-based navigation method on interplanetary trajectoryX射线脉冲星导航在行星际轨道上的应用
3.The research on X-ray pulsar navigation and positioning technologyX射线脉冲星导航定位技术研究
英文短句/例句
1.Analysis in X-ray Pulsar Navigation Phase Ambiguity ResolutionX射线脉冲星导航中相位模糊度解算
2.Use of X-ray pulsar-based navigation method on interplanetary trajectoryX射线脉冲星导航在行星际轨道上的应用
3.The Research of the Navigation of Spacecraft Based on the X-Ray Pulsars;基于X射线脉冲星的航天器自主导航方法研究
4.Spacecraft Position Determination with X-ray Pulsar Navigation of Geometric MethodsX射线脉冲星导航几何法确定航天器位置
5.Absolute Position Determination for Geosynchronous Satellite Using X-Ray Pulsars基于X射线脉冲星的地球同步卫星绝对定位方法
6.A New Method for Resolving Integer Pulse Cycle Ambiguities in X-ray Pulsar-based Navigation一种求解X射线脉冲星导航周期模糊数的新方法
7.X-ray Pulsar Virtual Observatory Based on the HEASARC Database基于HEASARC数据库的X射线脉冲星虚拟观测平台设计
8.solar impulsive hard X-ray burst太阳脉冲式硬X射线爆发
9.Electrical Pulses Timing of X-ray Framing CamerasX射线分幅相机电脉冲时标方法研究
10.Researches of Thomson scattering ultra-short pulse X-ray source at Tsinghua University清华大学汤姆逊散射超短脉冲X射线源研究
11.The Possible Contribution of Mature γ-ray Pulsars to Cosmic-ray Positrons;成熟γ-射线脉冲星对宇宙线正电子的贡献
12.EXOSAT (European X-ray Observatory Satellite)欧洲X射线观测卫星
13.The Studying of Hard X-ray Energy Spectrum on Ultra Short Pulse Laser Interaction with Solid Target;超短脉冲激光与固体靶相互作用的硬X射线能谱研究
14.SPH Simulation of Thermo-Mechanical Effects in Materials under Pulse X-rays Radiation;材料在脉冲X射线辐照下热—力学效应的SPH数值模拟研究
15.Pulsar: A dense, rapidly rotating star that emits pulses of light.脉冲星:高密度、快速旋转、发射脉冲光的星体。
16.An Inverse Compton Scattering Model for Radio Pulsars 1)射电脉冲星的逆康普顿散射模型(英文)
17.an X ray of an artery filled with a contrast medium.填充上照影剂后用X射线照动脉。
18.An X-ray binary system has been formed, and the neutron star has made the crucial second step toward becoming a millisecond pulsar.射线双星就这样形成了,于是这颗中子星就向成为毫秒脉冲星迈出了关键的第二步。
相关短句/例句
X-ray pulsarsX射线脉冲星
1.The Research of the Navigation of Spacecraft Based on the X-Ray Pulsars;基于X射线脉冲星的航天器自主导航方法研究
2.For reducing the computation complexity of pulse period ambiguity resolution for X-ray Pulsars NAVigation (XPNAV) and improving its convenience in engineering implementation, the Optimization Model for 4 X-ray pulsars localization is presented based on the orthogonality principle.为降低X射线脉冲星导航定位(XPNAV)系统解脉冲周期模糊的复杂度,提高其工程实用性,该文提出一种新的XPNAV系统解脉冲周期模糊算法。
3.In this paper, firstly,the algorithms of autonomous navigation based on X-Ray pulsars are introduced;secondly the model of the extended Kalman filter which is used in the autonomous navigation based on X-Ray pulsars is established;thirdly,taking the geosynchronous orbit for example,the accuracy of naviga- tion with different initial error,differe.基于X射线脉冲星的天文自主导航方法稳定、可靠、精度高,是航天器自主导航领域重要的发展方向。
3)Pulsar-X-source脉冲星-X射线源
4)AXP反常X射线脉冲星
1.Recently some new breeds in “neutron star” family have been discovered:the so-called Soft Gamma-ray Repeaters (SGRs),Anomalous X-ray Pulsars (AXPs),Compact Central Objects (CC.最近 ,“中子星”家族中的一些新种类被发现了 ,它们是 :所谓的软伽马射线重复爆 (SGRs) ,反常X射线脉冲星 (AXPs) ,超新星遗迹 (SNRs)中的致密中心天体 (CCOs)和暗弱热中子星 (DTNs)。
5)x-ray pulsar navigationx射线脉冲星导航
1.The spacecraft\'s autonomous navigation technology in the future is a best way by means of x-ray pulsar navigation;it can be used in the determi-nation of the Near-space,the solar system and the Milky Way,such as the position,speed,attitude and time of orbiting space-crafts,so as to achieve the autonomous precision navigation and self-management operation.航天器自主导航的未来最佳技术途径是x射线脉冲星导航;它能够用于测定在近地空间、太阳系和银河系等飞行的航天器位置、速度、姿态和时间,实现这些航天器的全程高精度自主导航和运行管理,具有广阔的工程应用前景和军事战略意义;但是它目前还处于初期研究阶段。
6)pulsed x ray脉冲X射线
1.In this paper is given briefly a survey of situation of simulating pulsed x ray with high current pulsed electron beam accelerator.文章简要介绍了利用强流脉冲电子束加速器模拟脉冲X射线的发展概况及国内脉冲X射线模拟源的发展现状 ,指出作为主要技术途径 ,高功率Z箍缩技术在实现超强脉冲X射线源和ICF驱动源上都有很重要的发展应用前景 ,并提出了今后工作设
延伸阅读
X射线脉冲星 具有短周期的X射线脉冲的天体,脉冲周期极短而且稳定。明显的例子是武仙座 X-1(脉冲周期掦=1.24秒)和半人马座X-3。现已证认出,这一类X射线源是密近双星。它们各由两个子星组成,一个是中子星,另一个是光学子星。光学子星通过洛希瓣(见临界等位面)外流和星风等形式不断向外抛射物质。中子星吸积由光学子星发出的物质。中子星的引力场很强,吸积到中子星的物质可以获得很大的动能,在中子星表面转化为 X射线辐射──热轫致辐射。X射线辐射的短周期脉冲结构就是由中子星的自转引起的。目前已观测到的这类 X射线脉冲星周期最短的是0.7秒,最长的可达835秒,比射电脉冲星的周期要长。绝大多数 X射线脉冲星有明显的射电辐射。观测得知,绝大多数射电脉冲星不发射X射线,只有蟹状星云脉冲星发出很强的 X射线脉冲辐射,因此它也是X射线脉冲星。但蟹状星云脉冲星与上述的X射线脉冲星不同,它不属于双星X射线源,而且它的X射线辐射机制是非热性质的。
