查询词典 satellite communications

Modern and practical astronomy was developed in the 18th century, and successively from the theoretical and practical solution to the Sino-satellite instrument measuring time, too Seoul Scott multi-satellite measurements such as latitude, as well as simultaneous determination of longitude and latitude Supreme Court means the emergence of theodolite, contour instrument, the satellite instrument, zenith instrument, photographic zenith tube, sextant and other useful astronomical instruments, the most commonly used is the optical theodolite .20 century, all-round practical field of astronomy 60 years after the emergence of new technologies, such as satellite Dhoop Le observation and satellite laser ranging, not only the accuracy of more than optical observations, but also greatly improved operating speed, and can provide direct point of geocentric coordinates of the ground.

现代实用天文学是18世纪发展起来的，先后从理论和实践上解决了中星仪测时、太尔各特测纬以及多星等高法同时测定经度和纬度的方法，出现了经纬仪、等高仪、中星仪、天顶仪、照相天顶筒、六分仪等实用天文学仪器，最常用的是光学全能经纬仪。20世纪60年代以后实用天文学领域出现了崭新的技术，如人造卫星多普勒观测和人卫激光测距，不但精度超过光学观测，而且作业速度大大提高，并能直接提供地面点的地心坐标。

The research results show that the spectral variation of visible radiation from the target observed by the synchronous satellite is the same as that of the direct sunlight radiation, the spectral radiant flux of the target observed by the low orbit satellite is three orders higher than that observed by the synchronous satellite in magnitude, and the spectral radiant flux of the target observed by the midorbit satellite is one order higher than that observed by the synchronous satellite in magnitude.

研究结果表明：在可见光波段，目标对同步卫星辐射的光谱变化规律与太阳直射辐射的光谱变化一致，低轨卫星上观测目标的光谱辐射热流比同步卫星上观测的结果大3个数量级，中轨卫星上观测目标的光谱辐射热流比同步卫星上观测的结果大1个数量级。

The spread spectrum communications are widely used in modern military communications, satellite communications, mobile communications and command, control, communication and intelligence( C~3I ) systems, because of its well multi-address access, low probability of interception, excellent performance of anti-jamming and secrecy.

扩展频谱通信作为新型的通信方式，由于其具有多址接入、低载获特性和较强的抗干扰能力，因此在现代军事通信、卫星通信、移动通信和指挥控制通信和情报(C~3I)系统中得到了广泛的应用。

First, the satellite constellation topology and the satellite network are introduced in this paper. A comprehensive overview on LEO satellite network routing algorithm research status is given, including the comparisons of several major LEO satellite network routing protocols like DT-DVTR(Discrete Time Dynamic Virtual Topology Routing)、AR and FSA.

本文首先介绍了卫星星座的拓扑结构和卫星网络的组网方式，对LEO卫星网络路由算法研究现状进行了综述，对主要的几种LEO卫星网络路由协议如DT-DVTRDiscrete Time Dynamic Virtual Topology Routin(来源：554fABC论文网www.abclunwen.comg、AR和FSA等进行了详细的比较并论述了它们具有的优点和存在的缺点。

Cases, a satellite along the elliptic orbit orbiting satellite operation, the perigee from the planet center distance is a, well locations from the planet center distance b, if the satellite perigee rate is Va, the satellite apogee when the rate Vb how much?...

例、某卫星沿椭圆轨道绕行星运行，近地点离行星中心的距离是a，远地点离行星中心的距离为b，若卫星在近地点的速率为Va，则卫星在远地点时的速率Vb多少？。。。

The high accuracy inter-satellite ranging system is the major payload of gravity exploring satellite using satellite to satellite tracking in low-low model.

高精度星间测距系统是低低卫卫跟踪重力卫星的关键有效载荷。

Product features: 1, automatic satellite system power automatically begin searching and tracking satellites; 2, Express to capture the use of WRS algorithm for finding stars at Express looking for about 15 seconds to track satellites; 3, receive real-time tracking of satellite signals, high-speed DVB identification code in order to achieve continuous flow of radio and television programs to watch; 4, automatic identification in the frequency and be able to accurately identify the location on the target satellite; 5, scanning electron velocity EBF sweep mode to ensure that the system 100 times per second tracking sweep speed, so that the antenna system to ensure that the system at all under any uninterrupted for watching satellite television programs and allowing the system to greatly increase the service life; 6, self-diagnosis can be their own fault diagnostic equipment, including communication links, sensors, drives, etc..

产品功能：1，自动寻星系统通电后自动开始搜索跟踪卫星；2，快速捕捉利用WRS寻星算法在15 秒左右快速寻找到跟踪卫星；3，接收信号实时跟踪卫星，高速识别DVB 码流以实现连续收看广播电视节目；4，自动识别能够在频率和位置上准确的辨别目标卫星；5，电子波速扫描 EBF扫模式保证了系统每秒100次的跟踪扫速度，使天线系统保证系统在任何条下都能不间断的收看卫星电视节目且使系统的使用寿命大大增加；6，自我诊断可以自行诊断设备故障，包括通信链路、传感器、驱动装置等。

And then, according to the kind of satellite and the requirements for geodetic and astrometric study and the geometry of GNSS satellite to track the space VLBI satellite, the six Keplerian elements of Chinese space VLBI satellite are selected and determined.

以及采用此程序，设计了我国空间VLBI卫星的遥控跟踪网，研究了此网对我国空间VLBI卫星的跟踪效率，给出了分析结果。

Hunan Satellite TV With the "Happy Camp" program founder, the highly creative, leading interactive entertainment programs throughout the country in an endless stream of Hunan Satellite TV,"Super Girls","State of the ball ceremony" and other popular activities in the country's major television unrefunded heat,"Happy Male","To dream of war" and bring "joy and dreams," from viewers in order to provide a rich and colorful, dazzling at the same time an integrated experience, as well as Hunan Satellite TV to shape China's first TV entertainment brand image, greatly enhanced the competitiveness of Hunan Satellite TV and influence.

随着湖南卫视《快乐大本营》节目的创办，这种极具创意、引领全国的互动娱乐节目在湖南卫视层出不穷，《超级女声》、《国球大典》等火爆全国的大型电视活动余热未退，《快乐男声》、《为梦想而战》又携&快乐与梦想&而来，他们在为电视观众提供了丰富多彩、目眩神迷的综合体验的同时，也为湖南卫视塑造了中国第一电视娱乐品牌的形象，大大提升了湖南卫视的竞争力与影响力。

Hunan Satellite TV With the "Happy Camp" program founder, the highly creative, leading interactive entertainment programs throughout the country in an endless stream of Hunan Satellite TV,"Super Girls","State of the ball ceremony" and other popular activities in the country's major television unrefunded heat,"Happy Male","To dream of war" and bring "joy and dreams," from viewers in order to provide a rich and colorful, dazzling at the same time an integrated experience, as well as Hunan Satellite TV to shape China's first TV entertainment brand image, greatly enhanced the competitiveness of Hunan Satellite TV and influence.

91代写事务所专业提供各种论文代写、论文发表服务，以及演讲、报告等各种文案代写服务，欢迎来电咨询。摘要随着湖南卫视《快乐大本营》节目的创办，这种极具创意、引领全国的互动娱乐节目在湖南卫视层出不穷，《超级女声》、《国球大典》等火爆全国的大型电视活动余热未退，《快乐男声》、《为梦想而战》又携&快乐与梦想&而来，他们在为电视观众提供了丰富多彩、目眩神迷的综合体验的同时，也为湖南卫视塑造了中国第一电视娱乐品牌的形象，大大提升了湖南卫视的竞争力与影响力。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。