查询词典 modulation capability

Program is divided into three parts: phase.m symbol of the baseband shaping pulse sequences, optional rectangular pulse, the square root raised cosine pulse and raised cosine pulse model.m-based procedures, completed a variety of base-band signal constellation mapping , pulse shaping and modulation command.m given spectrum shows a simple test.

程序分成三个部分：phase.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； model.m 为主程序，完成各种信号的基带星座图映射、脉冲成型和调制； command.m给出一个简单的频谱显示测试。

Illumination power source: slit lamp brightness continuously adjustable power source: the modulation design, the performance is stabler, enormous convenience equipment's service and promotion.

照明电源：裂隙灯亮度连续可调电源：模块化设计，性能更稳定，极大的方便了设备的维修和升级。

How to improve the performance of modulation recognition algorithms in low SNR becomes an important theme for their applications.

如何提高调制识别算法在低信噪比时的识别性能，是调制识别技术工程应用中必须解决的重要课题。

The apparatus comprises: a converter with refractory lining, an injection oxygen lance in the converter, a solenoidal coil in the lining, a DC generator, and a modulation signal generator.

本发明的设备包括：配有耐火内衬的转炉(1)、置于炉内的喷吹氧枪(3)、布置于转炉内衬中的螺管线圈(5)、直流电源部分、调制信号发生部分。

This paper introduces a system solution of modulation domain analyzer and it s principle of meas- uring frequency and time interval.

本文介绍了一种调制域分析仪系统方案及其测量频率与时间间隔的工作原理。

Simulation models are good tools for the modulation and the experiment system is beneficial to the Sparse Matrix Converter's apply.

本文建立的仿真模型为稀疏矩阵变换器调制的过程提供了方便的分析和调试工具；实验系统也为稀疏矩阵变换器的实际应用打下了一定基础。

The algorithm is suitable for the modulation mode that has the symmetry of spectral correlation density.

该算法对谱相关密度谱对称的调制方式均适用。

By fusing the IKONOS multi-band and pan image using several image fusion algorithms(IHS transform, PC transform, Gram-Schmidt transform and smoothing filter-based intensity modulation) and assessing the fusion image, indicates that qualitative comparison is too subjective, although many methods are provided for assessment when using quantitative methods, more bands and more methods should be used for their limitations, spectral curve comparison was the best method for appraising the result, spectral angle and geometry distance was introduced to appraise the spectral curve.

以IKONOS影像为数据源，对IHS、PC，Gram-Schmidt和基于亮度调节的平滑滤波四种融合算法进行融合处理，对其结果进行了评价。结果表明，定性比较主观性较强，定量比较方法虽多，但大都有一定的局限性，不同谱段的计算结果总有些差异。因此，定量评价时应该多选一些波段与评价方法才能获得比较客观的评价结果。光谱曲线的比较不失为一种比较好的方法，在对光谱曲线进行比较时本文引入了光谱角度和几何距离两种方法进行定量的比较。

In advanced time-division multiple-access mobile communication systems, reduced-state equalization algorithms have to be employed because high-level modulation is used in order to improve spectral efficiency.

在先进的时分多址接入移动通信系统中，需要一个减少状态均衡算法来提高高阶调制方式下频谱的有效性。但是这种均衡算法只有在具有最小相位的离散时间系统中才能获得高性能。

So we can get higher spectrally efficiency. We first analyze the performance of adaptive turbo coded modulation based on fixed threshold, and point out its disadvantages.

论文最后在自适应OFDM中引入Turbo编码调制，以期在获得自适应性能增益的同时亦获得Turbo编码增益，从而获得更高的频谱利用率性能。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。