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卫星通信

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ABSTRACT Satellite communication is one of the modern communication techniques.

卫星通信是现代通信技术之一。

In this paper we have described the origin and way of development of pack t satellite communication and pointed out its status and function in the future.

本文综合介绍了分组卫星通信的发展过程,并指出了它在未来通信中的地位和作用。

Satellite communication, as one of the significant modern communication technologies, has made a great deal of progress during the past 30 years.

卫星通信作为重要的现代通信技术之一,也取得了极大的进步。

The modem method has been employed in mobile communication system, satellite communication system.

在移动通信、卫星通信中得到广泛应用。

VSAT is a hotspot in satellite communications arid has been widely used in communications,finance and enterprise network .

VSAT已成为卫星通信领域的热点,广泛的应用于通信、金融等行业。

Therefore, in order to ensure the transmission quality, reliability and economical efficiency, we must master the rainfall attenuation influence of earth station setting areas accurately while the designing the earth-space satellite communication links.

因此,在设计地—空卫星通信线路时,为了保证通信系统传输质量、提高可靠性及经济性,就必须要准确地掌握地面站设置区域的降雨衰减所产生的影响。

The arithmetic operations in Galois field is central in the implementation of Reed-Solomon coders,storage and cryptographic algorithms.Multiplication is the most complicated arithmetic operation in Galois field.

1引言纠错编码技术在卫星通信、移动通信、数据存储、以及加密等领域已广泛应用,其中Reed-Solo-mon码是最重要的、也是研究最多的码类之一,已被多个国际标准采用。

Radio-frequency interference will cause severe degradation on satellite communications link performance,and adaptive nulling antenna is an effective anti-jamming measure for communication satellite.

射频干扰会严重影响卫星通信链路性能,而自适应调零天线是一种有效的卫星抗干扰措施。

A series of ka-band propagation experiments supported by ETS-II ,Olympus, ITALSAT. ACTS . Techniques such as rain fade mitigation, spot beam and shape beam have been developed . the commercial apply of ka-band satelliate will be soon.

Ka波段的试验卫星如ETS-Ⅱ、Olympus、ITALSAT、ACTS等已经证实了ka波段卫星通信的可能性,所采用的信道编码、点波束、数据速率调整等抗雨衰关键技术都已成熟,估计第一颗商用通信卫星将会在数年内投入使用。

Nowadays, the 9th generation Intelsat satellites are providing service in orbit, and satcom has become most successful space technology in economy.

目前,已有第9代Intelsat卫星在轨提供服务。卫星通信成为经济上最为成功的空间技术。

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推荐网络例句

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。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?