搜索资源列表
低频数字式相位测量仪
- 低频数字式相位测量仪； 此系统由相位测量仪、数字式移相信号发生器和移相网络三部分组成。为使系统更加稳定，使系统整体精度得以保障，本电路两块T89C52为核心控制器件分别控制相位测量、数字式移相信号发生,在数字式移相信号发生部分采用了锁相技术、CPLD等技术, 使输出波形精度大大提高，并可对频率自动校验，提高频率稳定性。-low-frequency digital phase-measuring instrument; This system consists of phase-measuri
yixiang
- 数字式移相信号发生器可以产生预置频率的正弦信号，也可产生预置相位差的两路同频正弦信号，并能显示预置频率或相位差值；-digital phase shifting generator can produce preset frequency sinusoidal signal, Preferences may also have phase difference with the way the two-frequency sinusoidal signal, and can show that
Rayleigh_Channel
- Gauss_generator利用参数（多普勒频移、系数、相移）生成确定的实高斯过程.m gaussian确定离散多普勒频移、系数、相移的程序.m Rice_generator在瑞利过程的基础上考虑视距分量，生成莱斯过程.m Suzuki_generator成确定型Suzuki过程.m Rayleigh_Doppler_multiPath.m Rayleigh_Doppler_singlePath.m rayleigh_Filter_Model.m pdf_cdf_gen.m test_rayl
EXPT12_10_PHAS
- 数字移相信号发生器设计，采用quartus2平台-digital phase shifting generator design platform using quartus2
MQG_PhaseUnwrap
- 用计算机模拟四步相移的数字全息图，并取得他的包裹相位-Computer simulation of the four-step phase shifting digital hologram, and made him the wrapped phase
Lowfrequencydigitalphasetester
- 低频数字式相位测试仪，本设计给出了以凌阳16位单片机Spce061A为核心的数字式相位测量的基本原理与实现方案。该系统由相位测量仪、数字式移相信号发生器和移相网络三个模块构成，分别由两块单片机独立地实现控制与显示功能。采用DDS技术生成两路正弦波信号，并通过改变存储器中数据读取的起始地址来实现数字移相的功能，用Ф-T变换技术来实现相位差的测量，使得测量分辨率精确到0.1º ，测得的频率与相位差值送入LCD进行显示，加入红外键盘以及语音播报的功能，使得系统具有智能化、人性化的特色。-Low
2MW_wind_grid_inverter
- 针对兆瓦级风电并网逆变器主电路研制中存在的并联扩容、开关频率较低和LCL滤波器难以优化设计等问题，提出了采用交流侧串接电感再进行并联的均流方案，采用载波移相技术提高变流器的等效开关频率，提出了LCL滤波器的设计原则，并给出了上述设计的理论依据和实现方法。通过对2兆瓦风电变流器主电路的仿真验证了上述技术方案。-MW-class wind power for grid-inverter main circuit of the parallel development of existing capa
EP1C3_12_10_PHAS
- 基于FPGA的移相式DDS正弦信号发生器的VHDL源代码，压缩包里是在Quartus里做的工程，FPGA用的是Cyclone1C3系列-FPGA-based phase-shifting of the DDS signal generator sine VHDL source code, compressed in the bag is done in Quartus Engineering, FPGA is used Cyclone1C3 Series
Studyonultrasonictransducerwithwide
- :提出了一种新型的双层压电结构超声波传感器,借助于移相电容器的移相作用,改变各压电层的 激励电压的幅值和相位,实现对传感器频率特性的控制,从而得到了具有宽频带高效率的超声波传感器,为研究宽带高效超声波传感器探索了一条新的途径-: A novel two-layer structure of piezoelectric ultrasonic sensors, by means of phase-shifting phase-shifting the role of capacitors, pi
code_lab_two
- The effects of multipath include constructive and destructive interference, and phase shifting of the signal. This causes Rayleigh fading, named after Lord Rayleigh. The standard statistical model of this gives a distribution known as the Rayleigh
psi
- 移相干涉求相位，既求出基于相位偏移干涉术的初始相位值-Phase-shifting interference requirements phase, not only find the phase shift interferometry based on the initial phase value
yixiangganshetuchuli
- 四幅移相干涉图的处理程序，相位提取，基本方法接包裹程序。正在学习的同志请下载。-Four phase-shifting the processing of interferograms, phase extraction, the basic method of access package program. Please download the comrades are learning.
dds
- 基于dds的数字移相信号发生器源码电子自动化eda设计源码 。电子设计自动化，EDA-Dds-based digital phase shifting generator source electronic design automation eda source. Electronic design automation, EDA
sumigps
- 时间—空间域的相移法偏移程序，使用的是su编译器，-Time- space domain phase shifting offset, using su compiler
2
- 移相全桥变换器的建模与仿真，希望对电力电子的同学有用。-The whole bridge converter phase shifting of the modeling and simulation, the hope of power electronic classmates useful.
5
- 本文主要是通过Buck变换器推导出移相全桥变换器的小信号电路模型，接着用MATLAB软件进行仿 真，来判断系统的稳定性。 - This paper is mainly through the Buck converter is deduced the whole bridge converter phase shifting small signal circuit model, then the MATLAB software to copy True, to judge th
Gupta_CVPR12
- CVPR2012_oral Micro Phase Shifting-We consider the problem of shape recovery for real world scenes, where a variety of global illumination (in- terreflections, subsurface scattering, etc.) and illumi- nation defocus effects are present. These
HVDC
- 自己做的高压直流输电的半边模型，采用定电流控制。在普通12脉波高压直流输电的基础上，替换b、c相的变压器为移相变压器，消除了11、13次谐波。-HVDC own half model, using the constant current control. On the basis of the normal 12-pulse HVDC, replacing b, C-phase transformer for the phase-shifting transformer, eliminatin
Phase-shifting-prestack-modeling
- 用相位移加实现速度纵横向变化、复杂陡倾地质模型的正流模拟，为复杂波场的地震、地质解释提供了精确、实用的方法。一般情况下，相位移延拓方法对徒倾斜地层成像精度高、稳定性好、计算快，但实现速度的横向变化困难；而频率、空间域的有限差分法算法简单、稳定性好、能适应速度的纵横向任意变化，但偏移陡断地层存在很多问题-Using phase shift and realization of vertical velocity variations, complex flow simulation of stee
Phase-unwrapping
- 移相干涉术,利用三个频率的条纹相移图像，最后得到高精度的高频相位展开图。-Phase shifting interferometry using three frequency phase shift fringe image, and finally get high-precision frequency phase expanded view.