卫星系统

Finally, applications of the anomalous propagation of microwave in tropospheric ducts are discussed: in connection with concrete radar parameters, effects of ducts on radar range and detection performance are discussed, the results obtained are of great value for the overall design of radar systems; by use of the interference standards of ITU-R, the co-ordination area of satellite earth-station under tropospheric ducts environment is studied ; by explaining the relationship between evaporation duct and advection fog, a new way to forecast sea advection fog from evaporation duct is provided.

最后讨论了对流层大气波导环境下电波异常传播特性的应用：结合具体的雷达系统参数，模拟计算了大气波导对雷达作用距离及发现概率的影响，对雷达系统的总体设计具有重要的参考价值；对表面大气波导环境下的卫星地球站通信协调区域进行了确定，从理论上很好地给出了协调距离量级的概念，为卫星地球站与地面微波站之间的协调提供了依据和参考；分析了利用海面蒸发波导来快速预测平流海雾的新方法，完善了平流海雾的预报方法，对海上安全作业和生产具有重要的意义。

The application of SL_FNN in global positioning system is proposed in the paper. The problem in the method of circle area call is discussed, and intelligent dispatch method is proposed.

本文讨论了结构学习模糊神经网络在GPS全球卫星定位系统中的应用，讨论了GPS卫星定位系统中园范围呼叫方法存在的问题。

According to the characteristics of altimetric satellite's orbit, this thesis systematically studies the theory and methods of satellite altimeter data processing. The content includes the analysis of satellite's radial error in time domain and in space domain, the spectra characteristics of collinear tracks and crossover points distribution, the integral method and the computation and analysis of Topex altimeter data.

本文针对测高卫星轨道及地面轨迹所独有的特点，较系统地研究了卫星测高数据处理的理论与方法，内容涵盖了测高卫星径向轨道误差的时域特征分析与空域特征分析、共线轨迹与交叉点分布等的谱特征、整体求解法的研究以及Topex测高数据的初步计算与分析。

I can ride my bike with no handlebars No handlebars No handlebars I can ride my bike with no handlebars No handlebars No handlebars Look at me, look at me hands in the air like it's good to be ALIVE and I'm a famous rapper even when the paths're all crookedy I can show you how to do-si-do I can show you how to scratch a record I can take apart the remote control And I can almost put it back together I can tie a knot in a cherry stem I can tell you about Leif Ericson I know all the words to "De Colores" And "I'm Proud to be an American" Me and my friend saw a platypus Me and my friend made a comic book And guess how long it took I can do anything that I want cuz, look: I can keep rhythm with no metronome No metronome No metronome And I can see your face on the telephone On the telephone On the telephone Look at me Look at me Just called to say that it's good to be ALIVE In such a small world I'm all curled up with a book to read I can make money open up a thrift store I can make a living off a magazine I can design an engine sixty four Miles to a gallon of gasoline I can make new antibiotics I can make computers survive aquatic conditions I know how to run a business I can make you wanna buy a product Movers shakers and producers Me and my friends understand the future I see the strings that control the systems I can do anything with no assistance Cuz I can lead a nation with a microphone With a microphone With a microphone And I can split the atom of a molecule Of a molecule Of a molecule Look at me Look at me Driving and I won't stop And it feels so good to be Alive and on top My reach is global My tower secure My cause is noble My power is pure I can hand out a million vaccinations Or let'em all die in exasperation Have'em all healed of their lacerations Have'em all killed by assassination I can make anybody go to prison Just because I don't like'em and I can do anything with no permission I have it all under my command Because I can guide a missile by satellite By satellite By satellite And I can hit a target through a telescope Through a telescope Through a telescope And I can end the planet in a holocaust In a holocaust In a holocaust In a holocaust In a holocaust In a holocaust I can ride my bike with no handlebars No handlebars No handlebars I can ride my bike with no handlebars No handlebars

我可以坐我的自行车没有把手没有把手没有把手我可以坐我的自行车没有把手没有把手没有把手看我，看我手在空气中一样，它的良好的可活着和我是一个著名的说唱甚至当paths're所有crookedy 我可以告诉您如何做硅做我可以告诉您如何从头纪录我可以采取除了远程控制我几乎可以把它连同我可以配合一结在一个樱桃干我可以告诉你，约莱夫帕格ericson 我知道的所有字眼，以"德colores "和"我很自豪地成为美国"我和我的朋友看到一个鸭嘴兽我和我的朋友作出了漫画书和猜测多久才我可以做任何事情，我想cuz ，请看：我可以保持节奏，没有节拍器没有节拍器没有节拍器我可以看到你的脸就电话关于电话关于电话看我看我只是所谓的说，它的良好的可活着在这样的一个小世界我所有的卷曲与一本书，阅读我可以赚钱，打开一个勤俭建国的商店我可以生活小康杂志我可以设计一个发动机64 英里一加仑汽油我可以做出新的抗生素我可以使电脑的生存，水生条件我知道如何执行业务我可以让你想购买的产品提出动议的热点和生产者我和我的朋友们了解未来我看到的字符串控制系统我可以做任何事情，没有援助 cuz我可以导致一个民族，一个麦克风与麦克风与麦克风我可以分裂了原子的分子一个分子一个分子看我看我驾驶，我不会停止和感觉那么好要活着就顶端我的达成是全球我的大楼安全我的事业是高尚的我的权力是纯我可以伸手万疫苗接种或let'em都死在无奈 have'em全部愈合他们的割伤 have'em所有杀害暗杀我可以作出任何人去监狱只是因为我不和like'em 我可以做任何事情，没有许可我一切都在我的指挥因为我可以引导导弹卫星通过卫星通过卫星我可以击中目标，通过望远镜透过望远镜透过望远镜我可以结束的星球在大屠杀在大屠杀在大屠杀在大屠杀在大屠杀在大屠杀我可以坐我的自行车没有把手没有把手没有把手我可以坐我的自行车没有把手没有把手

Based on low satellites on orbit and STK platform, some parameters of space-based optical system such as observation direction, Right Ascension of the Ascending Node and True Anomaly are set and optimized in this paper, which will lay a foundation theoretically for the design of space-based optical system.

本文以在轨运行的低轨卫星为研究对象，以卫星工具包STK为平台对天基光学系统的观察方向、升交点赤经和真近点角等参数进行了优化设置，为天基光学系统的设计任务奠定理论基础。

In the intersatellite coherent optical communication, the vibration of a satellite will lead to a pointing error of transmitting and receiving antennas, which will decrease the signal-to-noise ratio and increase the bit error rate. In this paper, the Rayleigh distribution is taken as the pointing error model caused by satellite vibration, and PSK homodyne communication scheme is used as an example to analyze the influence of the satellite vibration on the system instantaneous BER and average BER. The simulation calculation result of BER is given.

针对星间相干激光通信中卫星平台的振动造成发射天线和接收天线的瞄准角误差，使系统信号信噪比下降，误码率增加，该文以瑞利分布作为振动造成的瞄准角误差模型，结合高斯本振光和艾里信号光外差检测模型，以PSK零差通信体制为例分析卫星振动对系统的瞬时误码率和平均误码率的影响，给出误码率仿真计算结果。

This was the MKRC Legenda space-based system, operational in 1979, the main element of which is radar-equipped 17F16 satellites that use onboard miniature nuclear reactors for power.

这套系统在1979年投入使用，该系统主要由装备雷达的17F16型卫星组成，卫星上有星载微型核反应堆提供电力。

"We are very pleased that the satellite is being shipped to the Baikonur launch base and we are looking forward to traveling to Kazakhstan for the August launch," said Peter Jackson, chief executive officer of AsiaSat."Our collaboration with Space Systems/Loral on this project has been very positive, and we expect to benefit from the company's long heritage of reliability in FSS satellites."

AsiaSat 5卫星基于劳拉太空系统公司的1300平台建造而成，携带了26台C波段和14台Ku波段转发器。C波段可扩展AsiaSat 2卫星的全亚洲覆盖范围，Ku波段覆盖范围包括三个高能光束，其中的两个光束将覆盖东亚和南亚，另外一个波束为在轨可控光束，能够定位并向卫星覆盖范围内的用户提供服务。

The synchronous satellite is used to support some small bussinesses in the time with low business amount which nonsynchronous satellite can not cover like late at night and small hours,thus to insure the requirement of satellite communication of China with low investment cost.

本发明公开了一种中国综合卫星通信系统，它是由同步卫星和若干个非同步卫星构成，所述的非同步卫星是由中轨卫星或椭圆轨道卫星星座组成，具有区域性和时限性，即非同步卫星采用只在每天业务高峰期覆盖我国的时限区域性星座，在非同步卫星不能覆盖的低业务量时段如深夜和凌晨，可由同步卫星来支持这些小的业务量。

5DB coding gains can be achieved by using trellis-coded 16-ary QAM with respect to uncoded eight-PSK on such a channel condition. The expansion of power spectrum density is also analyzed and calculated.

本文基于卫星通信系统是一个功率受限和带宽受限系统这一特点，研究了带限非线性卫星信道的格型编码调制技术。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。