查询词典 digital transmission

A real time digital vocoder which has 2400 b/s data transmission rate, has been developed The speech quality of the vocoder is excellent,and it can be used in low bit rate speech communication s.

一个能实时工作的2400 b/s数字化声码器已研制成功。该声码器具有较好的语言质量，适用于低数码率的语言通信。

A real time digital vocoder which has 2400 b/s data transmission rate, has been developed The speech quality of the vocoder is excellent,and it can be used in low bit rate speech communications.

一个能实时工作的2400 b/s数字化声码器已研制成功。该声码器具有较好的语言质量，适用于低数码率的语言通信。

Code Division Multiple Access: a digital wireless telephony transmission technique.

分多路访问：一种数字无线电话传输技术。

R8 w 1. Time Division Multiple Access a digital wireless telephony transmission technique.

时分多址：一种数字无线电话传输技术。

Zarlink Semiconductor, formerly Mitel Corporation, is specialized in wired, wireless and optical connectivity market and ultra low power medical applications. Its product portfolio encompasses TDM and IP switching, convergence, network timing and transmission, optical communications, telephony components, wireless, broadband digital TV, RF tuners and demodulators for set-top boxes, and medical ICs for implantable, audiological, and portable monitoring applications .

Zarlink Semiconductor（前身为Mitel Corporation）在有线、无线和光连通领域以及超低功耗医疗应用方面一直处于领先地位，其产品主要包括TDM和IP交换、会聚、网络定时和传输、光通信、电话设备、无线应用、宽带数字电视、射频调谐器、机顶盒解调器以及各种用于植入、声波定位和便携监控的医疗芯片。

Arcos Technologies Ltd. develops and markets next generation solutions that enable cost effective and high-performance of digital multimedia transmission.

Arcos技术有限公司开发和销售的下一代解决方案，使数字多媒体的传输实现低成本高性能。

Maximal use of infrastructure with Arcos' HVN solution, both the existing, and next generation digital STBs, are becoming "virtual DVRs" and the Coax wires - a backbone for QoS signal transmission.

最大化地使用基础设施-Arcos 的HVN解决方案，无论是现有的，以及下一代数字机顶盒，都将成为&虚拟数字录像机&和同轴电缆，是高质量信号传输的支柱。

In the paper, a brand new measuring proposal which developed the foundation of conversional grating measurement has been introduced. It applies the electronic ocular (which essential element is CMOS image sensor) to the length measurement and uses the digital image processing technique subdivide the grating image in order to improve the distinguishability and accuracy of the system, and make the data processing, saving and transmission much more easier in the meantime.

本课题在现有的光栅计量基础上提出了一种全新的测量技术方案：结合现有的光栅计量技术，以电子目镜(核心元件为CMOS图像传感器)作为光电转换器件应用于长度测量系统，并采用计算机图像处理技术对测量的光栅图像进行数字化细分，以达到较高的系统分辨率及测量精度，并且使测量数据的处理、保存和传输更加简便。

By time-varying filtering, we realize the signal selectivity and interference suppression, especially for the signals with time-varying power spectrum. It is shown herein that conventional eigenstructure based methods are lower dimensional special case of the time-frequency subspace fitting method. The closed-form array response estimation algorithms for blind source separation in wireless communication is also developed in the dissertation by exploiting the data structure of second-order statistics of the array output in the presence of multipath. The proposed method achieves array response estimation with little constraint on signal property and propagation environment such as scatters or angular spread. Moreover, the array utilized here can be of arbitrary geometry and even uncalibrated. Since the closed-form solution is obtained, no misconvergency may occur and large amount of computation can be saved. The equivalent feed model and corresponding optimization designation are proposed to realize the downlink multi-user selective transmission. By coherent and non-coherent superposition of the electromagnetical field, multiple beams can be formed using a single array, so that each co-channel user signal is transmitted in each beam and will not interfered with each other. The proposed system scheme implements the digital beamforming and the channel allocation in the base band, therefore is suitable for the utilization of the radio software technology. The feasibility and effectiveness of the proposed model are proved by the RF experiment.

在窄带条件下，GSC－SSF方法还可以提高阵列的虚拟孔径，从而提高估计的性能；可以证明，Cyclic DOA 和SC-SSF方法可看作该方法的特例或近似； 3、提出了二维GSC－SSF方法和宽带谱相关DOA矩阵方法，利用信号的循环平稳特性解决了宽带条件下二维 DOA 估计问题，并具有阵元数少、计算量较小的特点； 4、提出了时频子空间拟合和宽带时频DOA估计算法，将联合时频分析的理论和方法引入到阵列信号的空间谱估计研究中，利用时变滤波实现信号选择性测向和干扰抑制，特别适合于谱时变信号；可以证明传统特征结构法可看作是时频子空间拟合方法的特例； 5、提出了多用户环境下阵列响应的估计方法——CARE方法，该方法对信号结构和传播参数（主要是散射源分布与角度散布）的约束较少，适用于各种几何结构的阵列甚至未校准的阵列，能够直接得到阵列响应的闭式解，因此计算量小、稳健性好，不存在收敛问题； 6、提出了针对多用户下行选择性发送的阵列等效激励模型、优化设计方法及其系统实现方案，通过空间场的相干叠加与非相干叠加使得单一阵列能够形成多个波束，并保证各波束内的用户信号各不相同且相互干扰最小；其系统方案具有在基带实现数字波束成形、信道分配并便于软件无线电实现的特点，其有效性已得到外场实测数据的证实。

METHODS By using transmission electron microscopy, we examined endoscopic esophageal biopsy specimens from the controls (n=10), patients with gasteroesophageal reflux disease(n=12), patients with esophageal carcinoma (n=10) and those after tunnel esophagogastrostomy (n=10). The intercelluar space diameter was measured by using a digital scanner from photomicrographs of the specimen.

用透射电镜检查10例正常对照组、12例胃食管返流病患者、10例食管癌患者和10例食管癌行&隧道式&食管胃吻合术后患者的内镜活检标本，用图像分析仪测量每例标本透射电镜照片的细胞间隙。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。