查询词典 narrow band

In speech communication, almost half of the time is the silence state, which contains much redundant information need to be taken away to improve code efficiency, so the silence frame should be compressed; On the other hand, to satisfy people's listening feelings, speech code implemented on UWB would be a new future's research direction on speech code. Nowadays the compression on narrow band or wideband have been studied a lot, but the silence compression on UWB need to be studied more, which is the main job of this paper.

在语音通信中，平均一半的时间处于无语音的空闲状态，这里蕴含着大量的冗余信息，所以去掉这些冗余信息将会大幅度的提高语音编码的传输效率，这就需要对静音信号进行压缩；此外，为了满足人们听觉享受，在高带上实现语音编码也将成为未来的研究方向，现如今窄带和宽带的静音压缩技术已经较为成熟，但高带的静音压缩技术尚待发展，这也正是本文研究的必要性。

By optimizing the parameter of the device,a narrow band filter with a 0.4nm bandwidth is obtained.

但在DWDM网络中，由于信息对波长的依赖，滤波器的作用却无处不在[1]。

At last, a 31 GHz narrow band filter is designed as an application of the photonic crystal.

利用CST对设计的腔体式滤波器仿真，结果比较理想。

This character of the photonic crystal containing defect can be used to enhance spontaneous emission of atoms and to make narrow band filter.

为了能对光子晶体进行数值计算，人们一直不遗余力的在寻求新的计算方法。

From the above we can see that in a narrow band wheel system transformation cards and membership cards to make the device has an outstanding technical features: flexible, effective and high quality, relatively low-cost, exactly how it's used to it now label market development.

从以上阐发洋我们可以看到，窄幅轮转制卡和会员卡制作摆设具有出色的技艺特点——板滞、矮效、矮品格、相差较矮的本钱，这些特点刚巧合适了长远标签阛阓成长的必给。

Leaves 4-6 in a cluster, narrow- band-shaped, 20-40(-60)cm long, 6-11mm wide, acuminate at apex, serrulate at margin.

叶4~6枚从生，狭带形，长20~40（60） cm ，宽6~11mm ，顶端渐尖，边缘具细锯齿。

In order to effectively separate the fluorescence produced by algae chlorophyll-a and the scattering light from the excitation light, the interference filter with high block coefficient and narrow band is used as spectral filter.

4为了有效地分离海藻内叶绿素a所产生的荧光和激发光的散射光，采用高阻塞系数的干涉滤光片作光谱滤光。

The Doppler frequency shift and the Doppler broadening are comprehensively utilized, the narrow-band phase plate is inserted between a collimating mirror and a focusing lens of an imaging probe, thereby implementing the spatial encoding of the Doppler information, realizing the imaging requirements on the spatial high-resolution three-dimensional speed vector, combining with the Doppler OCT method which is based on the phase resolution technology to meet the high-speed and high-sensitivity measurement requirements and finally realizing the speed vector imaging with high-resolution, high-speed, high-sensitivity and large-imaging range of the three-dimensional flow field of the microfluidic chip.

综合利用多普勒频移和多普勒展宽，并在成像探头的准直镜和聚焦透镜之间插入窄带相位片，实施多普勒信息的空间编码，实现空间高分辨三维速度矢量的成像要求，再结合基于相位分辨技术的多普勒OCT方法则能够满足高速度高灵敏度的测量要求，最终实现对微流控芯片立体流场的高分辨率、高速度、高灵敏度、大成像范围的速度矢量成像。

According to the requirements of 3 dB-coupler in adjacent-channel duplexers and the basic principles of 3 dB-coupler, a narrow band 3 dB-coupler is analyzed which can applied to digital TV field.

根据数字邻频双工器中对三分贝耦合器的要求和三分贝耦合器的基本原理，对应用于数字电视领域的一款窄带三分贝耦合器进行了分析。

The results of study showed that there were many interference signals in discharge detection signal for the DC feeder cable, which determined by the special electric wiring of the cable. The results of laboratory simulation and field measurement showed that the main interferences involved discharge pulse generated by other equipments of the traction substation, white noise, rectifying pulse generated by the rectifying equipments, current pulse generated by the braking of the locomotive,stochastic pulse signal, and narrow-band signal generated by electric equipment.

研究结果表明直流馈出电缆的电气接线以及负荷特点决定了其放电监测中存在大量的干扰信号，干扰信号包括白噪声、交流侧放电脉冲、直流侧其它设备的放电脉冲、整流装置产生的整流脉冲、机车启动制动产生的电流脉冲、随机性干扰脉冲以及其它电子设备产生的周期性窄带信号。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。