查询词典 wireless telegraphy

Was founded in December 2000, is headquartered in Shenyang, China, is a professional engaged in microwave RF products and wireless communications network system development, production, marketing and providing the corresponding services in the state's key high-tech enterprises, are domestic and international communications operator professional wireless network coverage equipment suppliers and service providers.

奥维通信股份有限公司成立于2000年12月，总部设在中国沈阳，是一家专业从事微波射频产品及无线通信网络覆盖系统开发、生产、销售并提供相应服务的国家重点高新技术企业，是国内外通信运营商无线网络覆盖设备专业供应商及服务商。

Secondly this paper analyzes the research present conditions and development trend of transmitter and miniature wireless in missile at home and abroad thoroughly ,then designs the PCM-CDMA-QPSK system of integrated miniature wireless beacon which based on the technology of CDMA and DUC.

其次，在深入分析和比较国内外弹载发射设备和无线信标技术研究现状的基础上，针对多目标测量的需求，基于码分多址和直接上变频技术原理，设计了PCM-CDMA-QPSK体制的微小型无线信标系统总体，完成了无线信标系统中基带扩频电路的调试，结果表明，基于码分多址的多信标测量方法是可行性，所设计的系统可靠有效。

Aiming at the problem of obtaining dynamical parameter in ammunition experimental aviation, this dissertation focuses on the method of multi-target telemetry and tracking based on miniature wireless beacon and the technology in miniature wireless beacon designed.

本文针对弹药飞行参数的测试问题，重点研究了基于微小型无线信标的多目标运动轨迹测量方法和微小型无线信标设计技术。

The invention relates to the method and apparatus for controlling wireless interface flow in the wireless network.

本发明涉及一种无线网络中控制无线接口流量的方法及其装置。

The user-wearable electronic wireless transaction apparatus comprises a housing which houses a wireless communication device, one or more electronic circuits, a power source, a display device and a biometric data reading device.

该用户可佩戴的电子无线交易设备包括外壳，其容纳了无线通信装置、一个或多个电子电路、电源、显示装置和生物测量数据读取装置。

Digital Language nuclear phase meter, intelligent dielectric loss test, instrument megger, frequency series resonance test device, grounding resistance tester, transformer load switch tester, the nuclear-phase high-pressure device, vacuum oil filter, clamp grounding resistance instrument, stray current detector, transformer features an integrated tester, cable fault tester, DC resistance tester, digital relay protection tester, automatic transformation ratio tester, relay protection tester, vacuum tester, Loop resistance tester, wireless high-pressure phase of nuclear device, active transformer capacity tester, insulation oil dielectric strength tester, high voltage switch mechanical properties tester, intelligent switching characteristics tester, light-up-flow devices, wireless instrument of nuclear phase, oxidation Zinc arrester tester, high voltage test transformer, DC high-voltage generator, lightning counter checkers, inductive load DC resistance tester, dielectric strength of insulating oil automatic tester, relay protection test chamber, multi-function test bed, IF DC - Generators

数显语言核相仪，智能化介质损耗测试，仪兆欧表，变频串联谐振试验装置，接地电阻测试仪，变压器有载开关测试仪，高压核相仪，真空滤油机，钳形接地电阻仪，杂散电流测定仪，互感器特性综合测试仪，电缆故障测试仪，直流电阻测试仪，微机继电保护测试仪，全自动变比测试仪，继电保护测试仪，真空度测试仪，回路电阻测试仪，高压无线核相仪，有源变压器容量测试仪，绝缘油介电强度测定仪，高压开关机械特性测试仪，智能开关特性测试仪，轻型升流器，无线核相仪，氧化锌避雷器测试仪，高压试验变压器，直流高压发生器，雷击计数器校验器，感性负载直流电阻测试仪，绝缘油介电强度全自动测试仪，继电保护试验箱，多功能测试台，中频直流发生器

In the last new years , as the demands of wireless communication system grows rapidly , the bands of microwave frequency had been saturated with various communication applications . To achieve wider spectrum for high-speed and high-capacity transmission , bands of millimeter-wave frequency are the solution of this problem . The advantage of MMW wireless communication systems is wider bandwidth comparing with microwave communication systems . To utilize the spectrum efficiently , many methods of complexly digital modulation is proposed . The more complex modulation , the higher linearity is required , and more various phase of signals are required to accomplish process of modulation . Therefore high-linearity and quadrature-phase modulator and demodulator are the emphasis of this thesis . For high level of integration , high performance and low cost , this chip is fabricated by the complementary oxide semi-conductor 0.13um process . A compact size of direct down-conversion and direct up conversion circuits will be presented in this thesis .

近年来随著无线通讯产业的蓬勃发展，微波频带已经趋近於饱和，为了追求更宽的频谱来达到更快传输速率及高资料容量的传输，宽频的毫米波频段提供了解决此问题的途径，毫米波无线通讯系统提供了相对於微波通讯系统宽频的优点，且为了更有效的使用频谱，各种不同且复杂的数位调变方式及方法被发表出来，越复杂的调变方式其所需的线性度越高，且需要更多不同的相位讯号来完成调变的过程，因此高线性度及四相位的调变及解调器将是此篇论文的研究重点，为了达到高整合性，高效能，及低成本的电路设计，我门利用互补式金氧半导体制程来完成此电路设计，因此一小面积的直接降频(Direct down-conversion)及直接升频(direct up-conversion)电路将在文中介绍。

Because of all the wireless terminals connected to amend Channel is a not a small project, so you should first of all on a single wireless terminal for testing can be effective only after the implementation of a large area.

由于在所有的无线终端上修改连接频道是一项不小的工程，因此你首先应该在一台无线终端上测试，证明确实有效后才可以大面积实施。

A system comprises a plurality of wireless stations for exchanging data over a wireless network and a coordinator station such an access point.

一种系统，包括多个用于通过无线网络交换数据的无线站和一个诸如接入点的协调器站。

It is important to note that Ball State's wireless network is a wireless local area network that operates at Ball State's campus in Muncie.

需要注意的是，鲍尔州立大学的无线网络是一个运行于曼西鲍尔州立大学校园的无线局域网络。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。