词语大全 narrow bandwidth中文翻译

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词语大全 narrow bandwidth中文翻译

Http is based on text messages and is not efficient on the wireless work with narrower bandwidth
Http基于文本信息,这在带宽很窄的无线网上效率不高。

For medium or long distance underwater acoustic munication , the narrow bandwidth and low carrier frequency only supports low bit - rate signal transmission
对于中、远距离的水声通信而言,水声信道的窄带宽、低载波频率特性只能支持较低的信息传输速率。

So the upstream channel has the character of narrower bandwidth and bigger noise . this character has a big influence on data transmission on the upstream channels
因此,上行信道具有频带窄,噪声大的特征,这一特征对上行信道的数据传输具有极大的影响。

Thirdly , cablemodem is subject to noise interference , especially the uppnk channel is susceptible to the noise " funnel " effect and the cross talk caused by narrow bandwidth
第三, cablemodem容易受到噪声干扰,特别是上行信道易受噪声"漏斗"效应的影响以及由于频带窄而引起信号间的串扰。

The downstream channel is a point - to - multipoint broadcasting channel with a wider bandwidth , while the upstream one is a multipoint - to - point share medium with a narrow bandwidth
Hfc网络下行信道采用一点对多点的广播方式,用户共享下行资源实现比较简单。上行信道是一个多点对一点的媒体共享信道。

But the data transmission to the control center is sometime quite difficulty due to the large chunk size of the recorded data as well as the paratively narrow bandwidth of the munication channels
但由于录波文件数据量特别大,目前在传输上很难满足应用要求。解决的办法是在数据发送前对其进行压缩。

The first is the need of wide bandwidth , the second is the high real time need and the third is the gusty data . however , the status of current work is narrow bandwidth , unpredictable delay while transmitting multimedia data , and appearing the phenomenon of losing package
而当前的网络状况是网络带宽不够高,传输多媒体数据时还会有不可预知的延迟,而且目前的网络质量还不可避免地出现丢包现象。

The underwater acoustic channel is very plex where cochannel interference , doppler frequency offsets , narrow bandwidth and time and frequency selective deep fades obstructs the development of high speed and fidepty underwater data transmissions . thus projects of high speed and fidepty underwater signal transmissions bee a hotspot in the fields of world academic circles . the conventional serial munication must use adaptive equapzer to bat the multipath in real - time
海洋水声信道是一种极其复杂多变的时-空-频变参信道,其信道窄,强多途干扰,信号起伏衰落严重,一直是水下信息可靠高速传输的主要障碍,因此如何在水声信道中高速率准确地传输数据,就成为世界性的热门课题。

Since its inception in 1998 to undertake research in iod system technologies , the group has also menced the development of its first series of inter apppances , which now include a range of set - top box , auto dvd for use in automobiles , idvd , a dvd player with inter access , and itv , a television set connected to a telephone pne on narrow bandwidth
集团自一九九八年开始研发iod系统技术,亦同时开展了首个互联网家电系列的产品开发,当中包括集团现时生产的机顶盒、汽车用dvd 、兼备上网功能的idvd及具备电话拨号上网功能的互联网电视itv 。

Through the design the dc feed work , input matching work for the ne900175 gaas fet and analysis the stabipzation , power gain , bandwidth of the power amppfier we get the power amppfier is stabipty , the power gain is 11 . 967db and the bandwidth is 300mhz . microstrip antenna has a narrow bandwidth , in this design antenna \' s bandwidth is 100mhz . antenna is the not only the load of the power amppfier , but also as the filter connecting to the output of the power amppfier
E类功放的pae相对a类、 b类、 ab类的功率放大器类型而言比较高,在50 ? 70 。分析了e类功放的工作过程后,以ne900175的gaas场效应管作为e类功放电路的开关,进行了外围电路的设计,包括直流偏置电路、输入匹配网络的设计,功放的稳定性、带宽、增益的分析。该功放增益最大达到11 . 4db ,带宽为320mhz 。


With the characteristics of large ambient noise , very narrow bandwidth , low carrier frequency , great propagation latency and time - space - frequency variant multipath effect ( mpe ) , the stochastic ocean channel has demonstrated the greatest plexity and difficulty for underwater acoustic wireless munications . among them multipath effect ( mpe ) is the most difficult obstacle that results in signal fading and inter - symbol interference ( isi )
但是噪声高、带宽窄、载波频率低、传输时延大、多途径效应随时间?空间?频率变化等信道特性都会给有效、可靠的水声通信带来很大的麻烦,其中多途径效应是最主要的困扰因素,它会导致信号幅度衰落和码间干扰。

Making use of advantages of led \' s small dimension , low power waste and the relatively narrow bandwidth of interference filter , we develop a portable apparatus which made up of nir led and interference filter , provide a economical and quickly non - damage measurement of wheat ponents " concentration on fieldwork
本课题旨在利用led体积小、功耗低以及滤光片带宽相对较窄的优点,研制led与滤光片结合型的便携式近红外光谱仪器,为小麦成分的现场检测提供了一个经济、快捷的便携式设备。

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