查询词典 satellite communication

Prediction method of long-term statistics of hydrometeor -induced cross-polari{ation is very important in designing satellite communication frequency re-use systems above 10 GHz utilizing orthogonal polarizations.

水凝物的交叉极化预报模式对10GHz以上频段使用正交极化频率复用的卫星通信系统设计具有重要意义。

The probability distribution three-state models of field strength and its probability distribution images under different environments,which are suitable for LEO mobile satellite communication system , are established in this paper.

建立了一种适用于低轨卫星移动通信系统的场强概率分布三状态模型和不同环境下的概率分布模型曲线。

Technology of interspaces observation not only includes satellite communication, radio astronomy and atomic clock's technique, but also sensitive to the advance of DSP and computer soft.

空间观测技术不仅是包含卫星通讯、射电天文和原子钟技术，而且对信号处理和计算机软件技术的发展也十分敏感。

Finally, you can use the satellite communication system for data transmission,non-shown in Fig.

它是一个25针电缆，每一针都规定了功能及信号电平，预计RS-232C将被修订的标准所取代。

This new platform, considering the relationship among teaching, learning and managing, solving the conflict of resources share and intelligence prosperity, adopting latest theory on learning and mature technology, has more advantages than the existing platform. Firstly, it integrates the advantages of Internet and Satellite communication system and achieves the seamless connection. Secondly, it adopts the coding technology of streaming media with MEPG-4, which makes it possible that the on-line instruction, the schedular broadcast instruction and the distributed course ware on demand can be broadcast on the two networks. Thirdly, it considers the problems of security, user certification and the protection of intelligence property. Fourthly, it is possible to link education resources from all united university, and is able to share resources for lifelong learning individuals or group.

此次清华大学远程教育播出平台的改造，本着现有平台与未来需求相结合；最新的学习理论与成熟的信息技术相结合；资源传输与对学生的学习支持相结合；教育资源开放与知识产权保护相结合的设计理念，综合考虑了远程教育环境中教、学、管三方面的需求和关系，因而具有多方面的优势：新平台整合了互联网和卫星网各自的优势，在技术上实现了天网与地网的无缝连接；新平台对传输的教育节目采用 MPEG-4编码方式进行流媒体播出，在传输上实现了基于两种网络的实时课堂直播、录播和基于互联网的分布式课件点播的多种需求；新平台集资源加密、用户认证和授权等功能于一体，可有效地保护远程教育中的知识产权；新平台将各联盟学校的教育资源进行整合后重新提供给学习的个体或团体，较好地实现了资源共享。

Current transmission medium such as cable,microwave repeater and satellite communication will prefer to use digital transmission.

现有的传输媒介电缆、微波中继和卫星通信等将更多地采用数字传输。

Article 16 The operating unit or operator of satellite communication networks shall abide by the laws and regulations of the State on radio administration, be subject to the supervision and inspection of the radio administration bodies, and cooperate with the radio administration bodies to manage the earth stations within the networks.

第十六条卫星通信网运营单位或经营者应当遵守国家无线电管理的法规、规章，接受无线电管理机构的监督检查，配合无线电管理机构对网内地球站进行管理。

The performance of LEO/MEO mobile satellite communication networks with intersatellite links is analyzed in chapter 6 based on the mean message traversal.

通过增加网络中节点间星际链路的数目可以改善网络的性能，而且这种改善对采用分组交换的系统比采用电路交换的系统大。

For the demand of low orbit satellite communication system requiring, designs the quadrifilar helix antenna was designed.

根据低轨道小卫星通信系统对天线的要求，文章对四臂螺旋天线进行研究。

A method was proposed which inosculates the antenna stabilization and beam tracking, and the results of simulation studies on servo system of vehicle satellite communication in motion based on the Matlab/Simulink model were proposed.

给出了一种把天线稳定和波束跟踪相结合的方法，建立了基于Matlab/Simulink的仿真棋型，进行了&动中通&伺服系统的仿真研究，并给出了仿真结果。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。