查询词典 radio transmission

Radio and television sent technology, satellite data receiving technical and transmission of digital display technology is our expertise.

广播电视发送技术，卫星数据接受技术，数码传输显示技术是我们的专长。

The sales network covers nationally, providing a comprehensive solution in the monitoring fields of urban traffic control,"Peaceful Cities" project, radio and television transmission, port and shipside monitoring, and security precaution system in Intelligent Community, etc.

销售网络覆盖全国，在城市交通监控、"平安城市"项目、广播电视节目传输、港口与码头监控、智能小区治安防范系统等监控领域中，提供了全面解决方案。

China Broadcasting Corporation is the Wholly-owned subsidiary of Wireless Radio Administration of SARFT. The company specializes in China Mobile Multimedia Broadcasting network construction, operation, system design, the development of relevant technology of Satellite broadcasting and the service of signal transmission.

中广传播有限公司为国家广电总局无线电台管理局的全资公司，主要承担我国卫星移动多媒体广播电视CMMB项目的投资和运营、系统设计、广播卫星相关技术开发和信号传输服务。

Features: In modern communications and radio and television signal transmission tower construction which, regardless of the user to select the ground plane or the roof of the Eiffel Tower, all play a rack of high communications antenna

特点：在现代通讯及广播电视信号发射塔工程建设当中，无论用户选择地平面或楼顶铁塔，均起到架高通讯天线

A DC-5 GHz single-pole double-throw radio frequency micro-electro-mechanical systems switch that employs lateral metal-metal contacting is designed. It consists of a set of quasi-finite ground coplanar waveguide transmission lines and a left right swing cantilever beam.

设计了一种基于横向金属接触的DC-5 GHz单刀双掷RF MEMS开关，该开关包括一套有限地共面波导传输线和左右摆动的悬臂梁。

Transmission can be done by cable , radio frequency and satellite.

传递可通过海底电缆，无线电波和通信卫星来进行。

The technology of Chinese Radio Broadcast has been changed from weak to strong awing to the improvement of science technology. And because of the earthshaking changes in the technology of program production, transmission, etc., the digitalization, network, intellectualization and informationization of program showing and satellite broadcasting service have great promotion effect to the human civilization and social progress.

依托于科学技术的进步，中国的广播技术由弱变强，广播电台的节目录制、传输等技术发生了翻天及地的变化，已逐步实现节目播出系统数字化、网络化、智能化、信息化和卫星直播等，并对人类文明和社会进步起了巨大的促进作用。

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。

In the study, we established the animal model of diabetic ED successfully. Modern medical methods such as routine lightscopy, pathology, transmission electroscopy, scanning electroscopy, fluorospectrophotometer and radio-immunity were employed. From the aspects of pathomorphism, cellular supermicrostucture and neurocrine, we observed the mixture's effect on status of the whole animal model and penial erection, the fast plasma glucose, protein non-enzyme gycosylation, nitric oxide synthase , testosterone. In contrast with control groups, the mixture could apparently slow down the corpus cavernosum penial, vascular, neural pathologic progression of the diabetic rats and had a better result than diabetic pill, invigorating yang and restoring normal capsule and amino guanidine.

通过实验研究，成功建立了糖尿病性阴茎勃起功能障碍动物模型，利用常规光镜病理、透射电镜、扫描电镜、荧光分光光度计、放射免疫法等现代医学研究方法，从病理形态学、细胞超微结构、神经内分泌学等方面，观察了降糖起萎合剂对模型动物整体状态和阴茎勃起情况、空腹血糖水平、蛋白非酶糖基化、一氧化氮合酶、睾酮等实验指标的影响，与对照组比较提示降糖起萎合剂能明显延缓大鼠基于DM基础上的阴茎海绵体及血管、神经病变的病理进程，其疗效优于消渴丸、壮阳复春灵胶囊及氨基胍。

The designing idea and realization method of a wireless tachometer of the engine with the wireless transmission technique were discussed.The design of the hardware and software of the wireless tachometer system was provided,based on TX100/RX100 ASK wireless receiving and transmitting radio module, real time clock chip PCF8563,AT89C2051 microcomputer and four-bit serial segmentary LCD of EDM1190A.

提出了一种应用无线传输技术的发动机无线转速表的设计思路及实现方法，给出了基于TX100/RX100ASK无线射频收发模块组、实时时钟芯片PCF8563、AT89C2051单片机和4位串行段式液晶显示器EDM1190A的无线转速表系统的硬件和软件设计。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。