查询词典 demodulator

A de-multiplexer which is connected downstream of the demodulator separates the two phase-shifted demodulated signals.

解调器后面接入的信号分离器把两个相移的解调信号分开。

A demodulator demodulates the received reflected signal, which has superimposed on it the microwave signal which originates from the microwave generator.

解调器解调接收的反射信号，该信号叠加在微波发生器产生的微波信号上。

The demodulator accepts an amplified and filtered IF signal in the 35MHz to 80MHz range, and demodulates it into I and Q baseband signals with 51dB of voltage conversion gain.

MAX2450解调器能够接收35~80MHZ频率范围内的中频信号，具有51dB电压转换增益，并且能够将信号解调为I/Q基带信号。

An optical demodulator and accompanying method that demodulates a DQPSK signal employing a single optical delay interferometer comprising a free-space Michelson interferometer having two optical paths, connected to a 1x2 coupler.

本发明提供了一种光解调器及其所附方法，它采用单个光延迟干涉仪来解调DQPSK信号，单个光延迟干涉仪由与1×2的耦合器相连的具有两条光路的自由空间迈克尔逊干涉仪组成。

Then , introduces the FPGA designed of the DVB-T decoder and demodulator , some of the core arithmetic , such as , demapper , inner-deinterleaving ( bit-wise/symbol interleaver ), viterbi decoder are detailed .

接着，详细描述DVB-T信道解码解调器中的部分核心算法的FPGA设计，包括星座解映射、符号解交织、比特解交织、viterbi译码等；另外，接收机中的帧同步和TPS提取采用C定点软件实现。

Multi-conductor coupled-line Marchand baluns and broadband frequency doublers and mixers are presented in this dissertation. This research focuses on the development of miniature broadband frequency conversion circuits including frequency doublers, fundamental down-conversion mixer, and IQ-demodulator.

本论文主要是讨论多金属耦合线马逊平衡不平衡转换器及宽频的倍频器及混频器，研究方向是著重於发展包含倍频器、降频器及正交解调变器在内的微小化宽频频率转换电路。

Similar to other kind of communication systems, the radio frequency modular of RSU in DSRC include many parts such ad antenna, duplexer, low noise amplifier, local oscillator, mixer, filter, modulator, demodulator, and so on. It's difficult to analyze every part in the system fully, so the emphasis is mainly on the parts designed and implemented for the RSU by myself.

和其它通信系统类似，专用短程通信系统路边单元的射频部分包含天线、双工滤波器、低噪声放大器、混频器、本振、滤波器、调制解调器等多个功能模块，论文中要完整地介绍和分析每一个功能模块是困难的，因此本文主要介绍自己亲自完成的部分。

The receiver includes: an LNA and downconverter; complete synthe- sizers and VCOs; direct conversion from IF receiver with variable gain control; quadrature demodulator; I/Q base- band amplifiers; and, on-chip baseband filters.

该接收器包括：一LNA和下变频器；完成桑特- sizers和压控振荡器，从中频可变增益控制直接转换接收器；正交解调器，I / Q基带放大器，以及片上基带滤波器。

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。

The system consists of phantom, signal source block, power amplifier block, measuring mode setting block, high accuracy amplifier and high speed demodulator.

该系统包括信号源模块，功率放大模块，测量模式设置模块，信号放大模块，同步解调模块。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。