查询词典 modulator

Proposed DSP engine consists of rectangular to polar converter and digital phase modulator that are designed based on the COordinate Rational DIgital Computer and Direct Digital Frequency Synthesizer algorithm respectively.

所提出来的数位讯号处理引擎包含了座标转换器和数位相位调变器，两者分别是利用数位座标旋转器以及数位频率合成器来实现。

The integrated optical chip we designed in the dissertation is composed of a symmetrical Y-branch power splitter, two phase modulators and the TE/TM mode polarizer. Here the up-electrode of phase modulator covers the rib waveguide directly. For the metal-cladded rib waveguide, the loss of different mode is different.

由于相位调制器采用上下电极结构，上电极直接覆盖在脊波导之上；因此利用金属覆盖的脊波导对不同偏振模式的光具有不同的传输损耗这一特性，将相位调制器的上电极同时作为TE/TM模式偏振器使用，这样无需制作额外的偏振器，整个器件的尺寸可以减小。

The diffracted light intensity on axis of a Spatial Light Modulator with Multi-level Phase Fresnel Zone Plate is studied by diffraction optical method.

用衍射光学方法研究了加有多级相位菲涅尔波带片的空间光调制器的轴上衍射光强。

The cells lining the gut combat worm infections by secreting an immune modulator that blocks worms from feeding on host tissues.

肠道内膜上的细胞通过分泌一种免疫调节剂来抵御蠕虫感染，这种调节剂可以阻止蠕虫以宿主的组织为食。

The fast axis of the quarter-wave plate is parallel to the dynamically induced birefringent axis of the photoelastic modulator.

被测1/4波片的快轴与光弹调制器的振动轴平行，且与起偏器和检偏器的透光轴分别成±45°夹角。

The FLL+ features digital frequency locked loop hardware that, in conjunction with a digital modulator, stabilizes the DCO frequency to a programmable multiple of the watch crystal frequency.

FLL+以数字式频率，与一个数字式调制器一道，稳定DCO频率对表面皿频率的一个可编程序的倍数的被锁的圈硬件为特色。

For accelerating the development in China, Invensys Controls has set up an APAC headquarters in Shanghai. At the same time, there are two wholly-owned subsidiaries under Invensys Controls: Invensys Controls Qingdao and Invensys Controls Weihai. They are the professional manufacturers for Temperature Controller for Refrigeration, Defrost Timer and Electronics Controller; Power Modulator for Kitchen; Electronical and Mechanical Controller for Cloth Washer and Dish Washer, Water Valve, Electronics Controller and Pressure Switch, etc.

为推动中国市场的发展，英维思控制系统将亚太区的总部设在上海，同时，控制系统中国区下属的两家独资企业：英维思控制器有限公司和威海英维思控制器有限公司，分别专业化生产冰箱、冰柜用温控器、化霜定时器和电子控制器；厨具用能量调节器；洗衣机、洗碗机用机电程控器、水阀、电子控制器和压力开关等产品。

For accelerating the development in China, Invensys Controls has set up an APAC headquarters in Shanghai. At the same time, there are three wholly-owned subsidiaries under Invensys Controls: Ranco Changzhou, Invensys Controls Qingdao and Invensys Controls Weihai. They are the professional manufacturers for Air Condition Revising Valve, Temperature Controller for Refrigeration, Defrost Timer and Electronics Controller; Power Modulator for Kitchen; Electronical and Mechanical Controller for Cloth Washer and Dish Washer, Water Valve, Electronics Controller and Pressure Switch, etc.

为推动中国市场的发展，英维思控制系统将亚太区的总部设在上海，同时，控制系统中国区下属的三家独资企业：常州兰柯四通阀有限公司，英维思控制器有限公司和威海英维思控制器有限公司，分别专业化生产空调用四通阀；冰箱、冰柜用温控器、化霜定时器和电子控制器；厨具用能量调节器；洗衣机、洗碗机用机电程控器、水阀、电子控制器和压力开关等产品。

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。

The study showed that the role of inhibitor of pyridine's ramification was more effective than of pyridine itself, and found that the lycopene could attain 400mg/L when adding 1g/L tobacco dust. The modulator could make different effect on fermentation.

研究了不同阻断剂的阻断效果，结果表明：吡啶衍生物的阻断效果明显高于吡啶，烟草废弃物可阻断番茄红素向β-胡萝卜素的转化，当添加1g/L烟草废弃物时，番茄红素的产量达到400mg/L。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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