目前数字电视的最大问题是传输码率太高,传输频带太宽。
The present biggest problem of the digital TV is too big transmission bit rare and too wide trans mission band.
由于光纤具有成本低、传输频带宽、抗干扰性强等优点,非常适合作为高速、宽带业务的传输媒体。
As the fiber has the advantages of low-cost, broad bandwidth, powerful resisting jamming ability etc, it is very suitable to be the transport media of high-speed broadband network.
由于光纤具有传输频带宽、容量大、抗干扰能力强等优点,非常适合作为高速、宽带业务的传输媒体。
As the fiber has the advantages of broad bandwidth, huge capability, powerful resisting jam ability etc, it is very suitable to be the transport media of high-speed broadband network.
传输频带宽的优点使其不仅可传输更多的广播电视节目,还可利用网络的富裕容量在网上开发其他业务。
The wide transmission band of the cable television network not only makes it transmit more broadcasting programs but also develops other network service using the network's abundant capacity.
本文中的电压传感器采用电阻分压,可将初级电压直接转化为10v以内的微信号,以供测量保护用,装置具有体积小、传输频带宽、不存在饱和问题、无谐振点等优点。
By adopting resistance divider, the voltage sensor designed in this paper can transform primary voltage into micro-signal less than 10v, which can be used in measurement system directly.
MIMO系统在发送端和接收端利用多个天线同时在相同的频带内传输信号,使得信道容量得到很大的增加。
The MIMO systems use multiple antennas at both the transmitter and receiver to transmit signal in the same frequency band at the same time can significantly increase the channel capacity.
因此脉冲成形技术不仅能对传输信号进行频谱成形来提高系统的频带利用率,而且还可以减小信号的PAPR值。
Thus pulse shaping technique can be used not only shape the spectrum of the transmitted signal to increase the bandwidth efficiency but also to reduce its PAPR.
现行的广播电视系统由于采用隔行扫描方式,从而有效地压缩了电视信号的频带,有利于传输;
Employing the interlaced scanning, current TV system can compress the frequency band of TV signal effectively and facilitate transmission.
与传统的复用式导频相比,叠加导频具有频带利用率高,传输效率高的优点,因而受到了广泛关注。
In comparison with the multiplex training scheme, superimposed pilot has the advantage of efficient bandwidth and high information rate, thus become more and more attractive.
研制宽频带的吉赫横电磁波传输室,其高频输入接头的设计尤为关键。
The design of high frequency input connector is especially important for the development of wide band gigahertz TEM cell (GTEM cell).
提出了一种将基于OFDM的数字信号和AM信号在同频带内传输的方案。
A scheme is presented for OFDM digital signal and am signal to transmit at the same band.
局、矿远程图形、图象实时双向传输需要宽频带的传输信道,光纤光缆信道是理想的选择。
Optic cable is ideal when wide band transmission channel is required to implement realtime dual transmission of bureau, mine remote picture and image.
当进行高速水下通信时,由于水下信道的频带有限,扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。
Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
大带宽无线传输有两个实现途径,一是设计频带更宽的单一系统,一是进行不同系统间的协同设计。
The wide band radio transmission may be implemented in two parallel ways: to design a new system with larger bandwidth; to construct a cooperative system based on existing systems.
本文讨论了船舶交通管理系统微波信息传输子系统中对雷达窄脉冲视频信号进行频带压缩处理的必要性和可能性。
The necessity and possibility of compressing radar narrow pulse video signal bandwidths in a microwave information transfer sub-system of VTMS is discussed in this article.
介绍了计算机数据传输中的基带传输和频带传输;
This paper mainly introduces the baseband transmission and the waveband transmission of computer data .
MSK调制在限频带、限功率的无线信道中传输性能尤为优越。
The transmission performance of the MSK modulator is very superior in a frequency band limiting and power-limiting radio channel.
该电路具有频带宽、电压传输和电流传输精度高、结构简单、易于实现及成本低廉且实用性好的特点。
The circuit has wide frequency bandwidth, high voltage and current transfer accuracy, simple structure. For this reason, it is easy to be realized with low cost for universal applications.
我们已经表明,频带有限的接口抖动有很强的关系的串行接口代码位结构,因此它可以高度与相关音频数据传输。
We have shown that band-limited interface jitter has a strong relationship to the bit structure of the serial interface code, and hence can be highly correlated with the transmitted audio data.
一般传输系统中,为了节省频带是不传输定时信息的,必须在接受端从相应的基带信号中加以提取。
In general transportation system, to save FB (frequency belt) does not transport sharp-information, but extracts from the BB signal of the receiving-but.
由于认知无线电系统可能工作在非常宽的频带内,而且频谱一般不连续,所以数据传输方式必须能够自适应这种特性。
As cognitive radio system may work in very large bandwidth, and the spectrum is generally not continuous, so the data transmission must be adaptive to this feature.
其次,结合MATLAB编程仿真和HFSS建模仿真,对微带天线的三种典型分析方法进行了深入研究,即传输线法、腔模理论和有限元法,为下面宽频带微带天线的设计奠定了理论依据。
Secondly, Using MATLAB and HFSS to deeply research three types of analytical method for microstrip antenna which are transmission line method, cavity mode theory and finite-element method.
该电路具有电源电压低、频带宽、电流传输精度高、及成本低廉且实用性好的特点。
The circuit has some advantages, such as low supply voltage, wide-band, the high accuracy of voltage and current transfer, low-cost, and good practical Properties so on.
有线电视网的特点是频带宽、信道容量大、传输率高、传输质量好,而成为多媒体综合信息网的极好通道。
The distinguishing feature of CATV is Broad Channel. Large Capacity and ExcellentTransmission QualityIt has become best routeway of Multimedia Synthetic InformationNetwork.
有线电视网的特点是频带宽、信道容量大、传输率高、传输质量好,而成为多媒体综合信息网的极好通道。
The distinguishing feature of CATV is Broad Channel. Large Capacity and ExcellentTransmission QualityIt has become best routeway of Multimedia Synthetic InformationNetwork.
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