demodulation

A full digital demodulation scheme is proposed for HF QAM signal.

文中针对短波高速QAM信号,提出并实现了一种全数字的解调方案。

The paper proposes a new method of demodulation of PCM/DPSK signal.

提出了一种新的PCM/DPSK数字信号解调方法。

Ich habe die Modulation und Demodulation des analogen und digitalen Signal gelernt.

我学了模拟和数字信号的调制与解调。

The nether system adopts LPC936 chip to demodulation, firing control.

下位系统采用LPC936单片机系统完成远端通信和中断点火控制。

Demodulation: The reverse of modulation. To convert data from analog to digital form.

解调:与调制相反工作。把数从模拟量转换成数字量。

Application of Computer Technology to Railways Signal Demodulation and Mensuration.

计算机技术在铁路信号信息解调测试中的应用。

A transfusion speed monitor system is designed based on infrared technology with modulation and demodulation.

摘要设计了一种利用红外光的脉宽调制信号来采集输液信息的医用微量输液装置。

The sampled data demodulation scheme and method adopting MMX technology are described.

其次,阐述了MFEIT和EIPT的采样数据解调原理及应用MMX技术进行软件解调时的关键问题;

The structure of band-pass RAKE receiver and the model of demodulation are depicted.

我们给出带通犁耙式接收机模型及解调结构。

Introduce and analyze the key module of demodulation technologies, for example NCO and CORDIC algorithm.

对解调技术中涉及的重点模块,比如NCO、CORDIC 算法等做了理论上的介绍与分析。

The wavelength demodulation technology of fiber Bragg grating is critical for its practical application.

光纤Bragg光栅的波长解调技术是光纤光栅传感器实用化的关键.

The strain sensitivity was demarcated by experiment using spectrum character of ASE demodulation.

并通过实验标定ase光源谱特性解调应变灵敏度系数。

The XPM technique is applied to the demodulation system for fiber grating sensor.

摘要将XPM技术首次应用于光纤光栅传感器解调系统。

The paper introduces the principle of QPSK modulation and demodulation, the circuit are also be realized based on FPGA.

文中介绍了QPSK调制解调的原理,并基于FPGA实现了QPSK调制解调电路。

The definition and demodulation principle of square demodulation analysis were discussed.

阐述了齿轮振动信号的调制原理,讨论了平方解调的定义及解调原理。

The demodulation algorithm for IQ components is given under condition that the carrier is recovered.

在载波频率已恢复的情况下给出了iq正交分量的解调算法。

After demodulation, receive dates will be sent to PC by CAN bus or the serial port.

地面接收机负责将数据解调后,通过串口或者CAN总线将接收数据送往上位机软件。

Time synchronization that is key technology of digital demodulation is cc allied by software.

对数字解调中的关键时间同步采用软件实现。

Mark Steber psk demodulation of the classic article, the second part of the source files, We want to help.

详细说明: J.Mark Steber的psk解调的经典文章中的第二部分的源程序,希望对大家有所帮助。-J.

A novel method of edge filter demodulation for fiber Bragg grating that use wavelength tunable laser was proposed.

提出了利用波长可调谐激光器对光纤光栅进行边沿滤波解调的新方法,该方法可实现多个测点动态应变的实时监测。

Study on the Fourier Transform Demodulation Theory of the Spectropolarimeter Based on Intensity Modulation[J].

引用该论文 宋志平,洪津,乔延利,裘桢炜,叶松,陈立刚,汪元钧.

The Improvement on PGC Demodulation Method Based on Optical Fiber Interferometer Sensors[J].

引用该论文 柏林厚,廖延彪,张敏,赖淑蓉.

Normally demodulation frequency is inside the limits that a few hertz this to hundreds of megahertz.

凡是解调频率都在几兆赫兹至几百兆赫兹的规模内。

The CW usually overwhelms the weak tag backscatter signals, and leads to unrestorable demodulation errors.

此连续波通常比标签回传讯号强,因此会覆盖掉微弱的标签反向散射讯号,并且导致不可回覆的解调错误。

At the same time, the demodulation analysis and the results of a practical PM wave are given.

在调制信号也是正弦波的情况下,给出了解调失真的计算方法和结果。

First, the features of fax communication and the mode of modulation and demodulation are described.

首先对传真通信的特点作了阐述,简单介绍了传真信号的调制、解调方式。

Even if is QP demodulation or AV demodulation, sweep time also is 10 seconds only.

即即是QP检波或AV检波,扫描时候也只为10秒。

Related problems, such as quick capture of direct spread sequence, MSK coherent demodulation, are also involved.

讨论了存在强干扰条件下MSK中频数字接收机的频域窄带干扰抑制、伪码快速捕获、MSK相干解调等实现方法。

The demodulation of wavelength shift is the key technology in the application of fiber grating sensors.

光纤光栅波长位移的解调是实现传感系统的关键技术。

Demodulation of the Optical Fiber Fabry-Perot Sensor Based on Fourier Transform[J].

引用该论文 章鹏,朱永,唐晓初,陈伟民.

Pilot beacon devices are available in the frequency shift and demodulation modes.

飞行员烟火装置在频度变化和解调模态中是可得的。

Then,the demodulation of AM (ampli- tude modulation) signal of function generator is discussed and achieved.

在此基础上讨论实现正弦载波的调幅信号的 精确解调问题。

A real time method for the calibration of the quadrature demodulation error of the RCS measurement radar receiver is proposed.

摘要针对脉间变频RCS测量雷达采用模拟正交解调方法获得同相分量和正交分量所引入的解调误差,提出了一种实时校准方法。

In order to implement Bragg wavelength demodulation, the electric current tuning phase-shift technology was utilized in the experiment.

实验中应用电流调谐相移量以实现布拉格波长的解调。

The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze.

载波相位噪声对QPSK调制解调的影响是不可忽略的,也是难以分析的。

A high rate base-band all-digital receiver based on TDA8044 demodulation chip of Philip Semiconductors is designed and implemented.

采用Philip公司TDA8044数字解调芯片设计并实现了一种高速基带全数字接收机。

It uses a fiber laser with narrow linewidth as light source, and adopts homodyne demodulation with phase generated carrier scheme to restore signal.

该系统基于迈克尔逊干涉仪结构,以窄线宽光纤激光器为光源,采用相位载波零差解调方案实现信号的还原。

It relates to decide some physical layer parameters including transmitting power, modulation and coding scheme (MCS) and demodulation order.

此法牵涉到决定一些实体层的参数,例如传送功率、调变和编码方式以及解调次序。

Finally, Its feasibility is analyzed by simulating the A/D, DUC/DDC, DPSK signal's coherent demodulation and carrier synchronization.

最后通过对 A/D、数字上/下变频、DPSK 信号的相干解调及载波同步等算法的仿真分析,验证了各模块的参数设计及系统可行性。

Finally, the designing correctness and feasibility of the receiver is proved by the simulation of AM signal demodulation with Matlab.

最后通过Matlab对调幅(AM)信号的解调仿真验证了该接收机设计的正确性和可行性。

At the year of 1971, Weinstein and Ebert applied DFT in parallel transmission system, as a part of modulation and demodulation.

1971年,Weinstein和Ebert把离散傅里叶变换(DFT)应用到并行传输系统中,作为调制和解调过程的一部分。

In this paper the author has done plenty of research work on demodulation technology, which is back grounded 150 Mbps satellite data transmission.

本论文以150Mbps卫星通信数传为课题背景,对解调技术进行了深入的研究。

Through analyzing the characteristic of spectrum of PCM/FM signal, the basic theory of demodulation by spectrum was got.

分析了PCM/FM信号的谱特性,给出了利用PCM/FM信号的频谱进行解调的理论基础。

In the end, temperature and strain performance of FBG is tested and strain-sensing demodulation experiment based on tunable light source is made.

最后,进行了光纤布拉格光栅的温度和应变特性测试实验,以及基于可调谐光源的应变传感解调实验。

HXMT is based on the direct demodulation (DD) method and the well developed NaI(Ti)/CsI(Na) phoswich detecting techniques.

HXMT建立在我国学者对硬X射线成像技术的原始性创新和成熟可靠的探测器技术基础之上。

Also,the software realization of demodulation of AM signal is performed using powerful Advanced Analysis function Library provided by LabWindows/CVI.

并在LabWindows/CVI软件平台下利用其提供的功能强大的信号分析函数库采用 3种不同方法实现调幅信号解调。

The main work of the base-band process part of the receiver is demodulation and decoding, the link control part does the framing and forwarding.

接收机的基带处理部分主要是解调和译码,链路控制部分组帧和转发。

The designed equalizer employing decision feedback structure can be applied for 64/256 QAM demodulation and easily realized by VLSI technology.

所设计的均衡器支持64/256的正交幅度解调且易于VLSI实现。

Since the carrier is suppressed, this phase and frequency reference is required for synchronous demodulation of the color information in the receiver.

由于载波收到抑制,因此需要这个相位和频率参考来对接收机的颜色信息进行同步解调。

The method for PCM/FM signal demodulation based on DSTFT was proposed according to the instability of factual PCM/FM signal.

根据实际PCM/FM信号的非平稳特性,提出了基于离散短时傅里叶变换(DSTFT),通过比较频点能量进行PCM/FM信号软件化解调的实现方法。