demodulation
demodulation
1. 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。
2. 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。
3. A novel sampled data software demodulation solution for biomedical signal acquisition based on Multimedia Extensions(MMX)technology is introduced in this paper.
一种基于多媒体增强指令集(MMX)技术的生物医学信号采样数据软件解调方案。
4. Design of an Interpolator Used in QAM Demodulation
一种用于QAM解调的内插滤波器的设计
5. 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。
6. As a key technology in digital quadrature demodulation system,the direct IF sampling filter with sharp cutting-off transition band can improve the performance of demodulation system.
中频采样是数字正交鉴相系统中的一项关键技术,具有锐截止特性的中频采样滤波器可以改善鉴相系统的性能。
7. Distributed FBG temperature alarming system based on AWG demodulating was set up in order to use AWG to realize FBG signal demodulation, and it's was realized by VC++ program simulation.
为了实现AWG对光纤光栅传感信号的解调,本文建立了基于AWG解调的分布式光纤光栅温度传感报警系统,并使用VC++模拟实现了该系统。
8. The other is to substitute Lucy iteration on the ordered subsets of observed data for Lucy iteration on all data in the direct demodulation imaging method.
二是将直接解调成像方法中lucy迭代改为观测数据按一定方式分组排序的lucy迭代。
9. Sitiodace a kind of new demodulation method of single sidcband slgnal, prouide a kind of new way for solation wave guide nassow band of mobile communication system.
介绍一种单边通信号的新的解调方法、为解决移动通信系统波道窄带化提供了一种新的途径。
10. The technique of synchronization and demodulation in DS/FH hybrid communication system based on coded-spread spectrum is considered. It works in high dynamic condition.
介绍一种基于编码扩频的DS/FH(直序/跳频)混合扩频通信系统的同步及数据解调技术,它有效地解决了动态环境的下数据解调问题。
11. A new signal processing method-time-frequency analysis based on generalized demodulation is introduced and applied to the processing of modulated signals.
介绍了一种新的信号处理方法-基于广义解调的时频分析方法,并将这种方法应用于调制信号的处理。
12. In this paper,the charaeteristic of the signal is introduced,and the producing process is analysed,then a method of software demodulation and FFT is brought forward.
介绍了离轴驱动信号的特征,分析和分解其形成过程,提出一种软件解调和傅立叶变换相结合的测试方法,并在某航空产品测试设备中得到应用。
13. The design of hardware and software is presented, especially the I/Q demodulation and amplitude and phase error-correction are introduced, and a bispectral analysis module is built.
介绍了系统的硬件和软件设计，提出了I/Q正交解调及脉冲体制超宽带信号幅相误差校正方案，并构建了适于超宽带信号频谱分析的双谱分析模块。
14. This article introduced the technology of Fiber bragg grating (FBG) sensing, the characteristics of temperature, the demodulation techniques, and the selections of photosource.
介绍光纤布拉格光栅(FBG)传感技术、温度特性、解调技术、光源的选择。
15. This thesis primarily focused on the modulation and demodulation system and the design technique of CPLD, and also discussed and simulated the digitalized FSK、4FSK systems based on CPLD.
从模拟调制到数字调制，从二进制发展到多进制调制，虽然调制方式多种多样，但都是朝着使通信系统更高速、更可靠的方向发展。
16. The solution and theory are provided to slove the problems such as distortion and jump of rebuilded picture when the TV sets received unstable TV signal,which used this demodulation technology.
从而为采用这种技术的彩电在接收载频稳定度较差的TV信号时出现图像扭曲、跳动等问题提供了解决方案和理论依据。
17. The general principle and the technical difficulties of the fiber grating sensor system signal demodulation are summarized,and the commonly-used demodulation methods are classified.
信号解调是光纤光栅传感系统实用化所面临的最大难题,其核心问题在于设计高分辨率、低成本的波长检测方案。
18. Channel estimation is one of the key techniques for OFDM systems. Compared with the differential demodulationn, coherent demodulation with accurate channel information can achieve 3-4 dB gain in signal-to-noise ratio (SNR).
信道估计是OFDM系统中的关键技术之一,利用信道信息的相干解调系统与不利用信道信息的差分解调系统相比,在信噪比(signal-to-noise ratio,SNR)上可以有3 dB以上的性能提高。
19. 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.
20. 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。
21. Resonance demodulation technology is a effect method to extract equipment s impact fault during running process,it mainly uses the characteristic of the impulse contain abundant frequency component.
共振解调技术是利用冲击脉冲含有无限丰富频谱成分的特点来提取设备在运转过程中存在的冲击故障的一种有效方法。
22. On the BPSK, QPSK, 8QAM, 16QAM, 32QAM modulation demodulation process. As a separate module can be added to any channel, the demodulator uses two methods.
关于BPSK，QPSK，8QAM,16QAM，32QAM的调制解调程序。可作为单独模块加入到任何信道下，解调采用了两种方法。
23. 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;
24. Moreover, with the consideration of DDC and DUG, orthogonal modulation and demodulation algorithms of AM, FM, FSK, BPSK, QPSK are explored and implemented based on traditional algorithms.
再次论文在总结了传统的调制解调基础上，结合软件无线电器件的特点，系统的探讨并实现了基于正交思想的AM、FM、ASK、FSK、BPSK、QPSK的正交调制解调算法。
25. 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。
26. 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。
27. The error correcting encoding and decoding, interleave and deinterleave, and DMT modulation and demodulation are analyzed in detail.
分析了信道编译码方法、交织与解交织及DMT调制与解调等关键技术。
28. This paper described the performances of capture and track of phase-lock-loop used in PLL synchronous demodulation in color TV，and pointed out the reasons which affected the performances.
分析了彩电PLL同步检波技术中锁相环路的捕获与跟踪特性，并指出了影响其特性的原因。
29. The paper analyzed spectrum characteristic of Automatic Block signal, proposed a arithmetic of computing ZPW2000A FSK-signal and realized frequency demodulation.
分析了自动闭塞信号的频谱特性，提出了ZPW2000A移频信号的还原算法，实现了对该移频信号的解频。
30. The signal processing circuses, including the low-noise pre-amplifier, the filter and the phase lock loop(PLL) demodulation were designed.
分析并研制了系统的信号调理电路，其中包括低噪声前置放大、滤波、锁相环解调。
31. Finally it is demonstrated by simulations that, once PLL is capable of retrieving tracking state from capturing state in some SNR condition, effective EBPSK demodulation is available.
分析表明，在一定的信噪比条件下，只要锁相环能由捕获状态恢复到跟踪状态，就能保证EBPSK信号的有效解调。
32. Moreover, this paper explores how to make use of DSP, CPLD, Digital down conversion (DDC) device, ect, to construct a SDR IF receiver which can carry out the demodulation function of AM signal if AM demodulationprogram is downloaded.
利用DSP、CPLD、数字下变频器等器件，构造了一个软件无线电中频接收系统，对该系统下载AM解调程序，它可以执行AM信号的解调功能。
33. Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop( PLL) technique and a singe chip microcomputer.
利用锁相环(LL)窄带跟踪特性,与单片机结合,实现自动闭塞系统移频信号解调.
34. 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。
35. Two Way Automatic Communication System(TWACS) is a new valuable communication technology for distribution networks,which has special of modulation and demodulation.
双向工频通信技术(TWACS)是一种基于电力配电网络的新型通信技术,具有独特的调制解调机理。
36. Haming code is used for error control in system.And other performances such as PSK modulation, PSK demodulation are also implemented in the system.
另外，系统采用汉明码纠错编译码、PSK调制、PSK相干解调实现纠错编译码、调制、解调等功能。
37. Simultaneously by comparison, demodulation performance of cyclic autocorrelation function is more widely than other demodulation methods, so can enhance accuracy and correctness of analyses.
同时经过比较,循环自相关函数具有比其他传统解调方法更为全面的解调作用,可以提高分析时的准确性与正确性。
38. Which device connects a computer with a telephone line by providing modulation and demodulation of incoming and outgoing data?
哪一个设备将电话线和计算机连接到一起，并且提供了对输入和输出的数据的调制与解调功能？
39. Not only space-time coding in the MIMO but also demodulation in the OFDM, the rather exact CSI is essential parameter for dealing with data in the MIMO-OFDM.
在MIMO-OFDM系统中，不论是对MIMO进行空时处理，还是对OFDM进行相干解调，都需要较为准确的CSI作为数据处理的必要参数。
40. After analyzing the conventional methods of single side-band Modulation Demodulation? this paper emphasizes a set of new methods based on digital weaver.
在分析了常规单边带模拟调制方法及其弱点的基础上,着重阐述了利用维弗法来实现单边带数字调制解调方法。
41. Based on the analysis of system noise sources,an adaptive line enhancer(ALE) is introduced into the demodulation software to reduce the wide-band noise.
在分析了系统主要噪声基础上,在解调软件中引入自适应谱线增强器(ALE),来最大程度消除宽谱噪声。
42. Aiming at the problem, a new method called the EMD (empirical mode decomposition)-cyclic domain demodulation is proposed.
在对循环自相关解调及其性能分析的基础上，提出了基于经验模式分解的分频带循环自相关解调方法。
43. The received signal is multiplied by the local sequence, and then the proposed scheme achieves the M-ary despread spectrum and OFDM demodulation at the same time.
在将基站接收信号分别与各用户原型扩频码镜像序列的OFDM调制结果相乘后，利用OFDM解调器可同时完成M元解扩和多载波解调。
44. In radio communications, a frequcy in a superheterodyne receiver or transmitter system that enables easier filtering, distribution, modulation, and demodulation of a signal.
在无线电通信技术中,超外差接收机或发送机系统中使用的一种频率,能够方便地对信号进行滤波、分配、调制和解调。
45. 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。
46. 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。
47. 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。
48. 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。
49. Considering the practicability and feasibility, grating-matching demodulation method is employed in the demodulating system introduced in this paper.
基于实用性和可行性等方面的综合考虑,采用匹配光栅滤波器法作为系统光路部分的解调方法。
50. The cross-term interference caused by multi-modulator and multi-carrier makes it difficult the use of the cyclic autocorrelation demodulation.
多调制源、多载波信号的循环自相关解调分析存在交叉项的干扰,这使循环自相关解调方法的实际应用产生了困难。
51. They are ideally suited for use in analog-to-digital conversion (ADC), long term integration, linear frequency modulation and demodulation, and frequency-to-voltage conversion.
它们非常适用于模数转换(ADC)、长时间积分、线性调频和解调以及频压转换(FVC)。
52. It uses Altera s FPGA constitute the core unit, through different software configuration for the three-way realize FDMA signal demodulation.
它采用Altera公司的FPGA构成核 心单元,通过不同的软件配置实现对三路频分多址信号的解调。
53. Expereice has shown that the new technique can improve the precision and the stability of phase demodulation with the projected grating phase method.
实例证明该技术改善了解相的精度和稳定性，提高了投影栅相位法的应用水平。
54. Realize signal modulation and demodulation functions, including various types of modulation such as ASK (amplitude modulation), PSK (phase modulation), FSK (FM).
实现信号的调制解调功能，包括各类调制如ASK(调幅),PSK（调相）,FSK（调频）。
55. 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。
56. The performances and characteristiss of the zero crossing digital demodulation is ana lysed through the comparison of various ways of Fsk signal digital demodulation. And ideal conclusion is reached.
对各种频移键控信号的数字解调方法进行了研究和比较，并重点分析了零交点数字解调法的性能特征，最后得出了一个最佳结论.
57. 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。
58. Comparing to analog IQ demodulation, the advantage and application future of digital IQ demodulation are described in this paper.
对比模拟复解调，说明数字复解调的优越性以及它们的应用和发展前景。
59. 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。
60. The soft-i n/soft-output Maximum a posteriori probability (MAP) algorithm is derived for the MDD.The iteration between the demodulation and the subsequent convolutional decoder is then developed.
导出了MDD下GMSK信号的软输入/软输出最大后验概率（MAP）算法，然后实现了解调器与其后的卷积码译码器之间的迭代译码。
61. The fault characteristic of rolling bearing can be extracted via integrating general harmonic wavelet and resonance demodulation technique.
将广义谐波小波结合共振解调技术,可较好地提取轴承故障激发的共振信息。
62. Demodulation of Balance Amplitude Modulation Wave
平衡调幅波的解调
63. Taking PCM/DPSK for example, the effects by Doppler velocity during the course of bit synchronization and demodulation are analyzed.
并以PCM/DPSK信号为例, 分析了多普勒频率对位同步及解调过程的影响。
64. 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。
65. 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。
66. 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.
67. 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.
68. 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.
69. Demodulating methods for optical fiber F-P sensors are divided into two categories: intensity demodulation and phase demodulation.
强度解调一般利用单色光源，根据强度变化求解出腔长；
70. The general principle and the technical difficulties of the fiber grating sensor system signal demodulation are summarized, and the commonly-used demodulation methods are classified.
总结了光纤光栅传感信号解调的一般原理和技术难点，对常用解调方法进行了分类和归纳。
71. 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。
72. We design the cantilever girder to simulate the tuning of the strain and displacement, tuning range 400 .Measure the signals after demodulation by means of OSA and OPM.
我们自行设计了悬臂梁结构进行应变和位移的模拟调谐,调谐范围400,用光功率计和光谱仪对解调后的信号进行监测,拟合出的曲线与理论值基本符合。
73. 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。
74. 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。
75. The AE signals from rolling bearing were processed by high-pass filter and demodulation and compared with vibration signals.
把声发射信号与振动信号作对比，通过高通滤波后再进行包络解调，结果表明声发射信号可以较早地诊断出故障，抗干扰性好。
76. The wavelength-matched demodulation based on maximum correlation, extremum judgment of photodetector output signal, are only available for alike reflective spectra.
指出基于最大相关原理(光电探测器输出信号极值判断法)的匹配解调只适用于两个光纤光栅具有相同的反射谱型。
77. 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。
78. demodulation threshold signal level of receiver
接收机解调门限信号电平
79. 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。
80. 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。
