查询词典 UHF

Then, on the basis of the functional verification, the system architectures of the radio frequency analog front end and the control logic circuit for the passive UHF RFID transponder are studied and designed with low-power design techniques. The RF AFE circuit includes rectifier, matching network, backscatter, regulator, AM demodulator, voltage reference, local oscillator and power on reset circuit, and so on. The control logic circuit contains clock synchronization module, decoding module, coding module, cyclic redundancy checksum module, power management unit, control unit, shift register and memory.

然后，在功能验证的基础上，重点研究了无源超高频射频识别标签芯片射频模拟前端电路和控制逻辑电路的系统架构，并采用低功耗设计技术对其进行了设计，射频模拟前端电路设计包括了整流器、匹配网络、反向散射电路、稳压器、AM解调器、电压参考源、本地振荡器以及上电复位电路等，控制逻辑电路设计包括了时钟同步模块、解码模块、编码模块、CRC校验模块、功率管理单元、控制单元、移位寄存器和存储器等。

Present a design of the Emissive Microwave Power Control used for the UHF RFID Reader.

介绍一种用于适用于超高频段以上的射频读写器功率控制方案。

Driven by the enormous market of UHF RFID , the research and development for Reader and Tag have grows explosively.

超高频射频识别的巨大市场潜力推动了阅读器和标签的研究和开发。

A model for computing the electric field dependent rate constants of gas-phase intramolecular electron transfer reactions by classical path method has been proposed within the activated-complex framework.

用经典轨迹方法，在过渡态理论框架下，提出外电场中气相分子内电子转移反应的速率常数计算模型，并用电子定域初始猜测诱导UHF-SCF技巧实现了两电子定域准透热态的分离。

In this system, employing the method of sensor directly measuring the tire pressure, the pressure value is send out wirelessly according to the given UHF after coded and modulated, finally the pressure information is displayed on the displaying instrument of the flight deck.

该系统采用传感器直接测量轮胎压力的方法，将压力信息编码调制，以设定的超高频用无线的形式发送出去，压力信息最终显示在驾驶舱显示仪表上。

Similar to the second conclution of chapter two, I also study the linear characterization of 2-local isometry on TUHF algebra. The way of proof is same.

第二方面类似于第一章中的第二个结果，讨论了三角UHF代数上的2-局部等距的线性性质，证明方法也是类似的。

The atomic net charge, population of frontier molecular orbital, stability and reactive properties of free radicals were analyzed, the mechanism of graft polymerization was discussed.

同时采用量子化学abinitio UHF方法在6-31G基组水平上对两类淀粉链段自由基模型进行几何优化，分析体系的净电荷、前线分子轨道分布规律，以及自由基的稳定性和反应活性特征，揭示接枝共聚反应机理。

This paper analyses and implements a kind of UHF Near-Field RFID Reader Antenna. Moreover, it calculates and simulates the impedance and radicalization feature of this antenna theoretically.

本文设计并实现了一种RFID阅读器近场耦合天线，并对该天线的阻抗特性和辐射特性进行了理论计算和仿真。

Autopilot tailored to deck operations and hover, twin-gyro platform and Doppler, duplicated HF, VHF, UHF, night lighting plus strobe, radio compass, radar altimeter, IFF and four passive RWRs.

自动驾驶仪适合甲板作业和悬停，双陀螺平台和多普勒，重复高频，甚高频，超高频，加上夜间灯光频闪，无线电罗盘，雷达高度表，森林论坛和4个被动

TX power on all bands appears great and there are 4 level settings. They are 5, 10, 20 and 50 35 UHF

3， 所有段上的发射功率显得很好，有四级的调节量，分别是5，10，20，50瓦

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。