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HighConvert_Pwm
- 1.本文对一种高效的升压式PWM 变换电路作了分析研究 对开关状态的切换效率高 采用双零软开关工作,大大降低了开关损耗, 提 高了电路的转换效率. 2.该电路在高频的开关电源、逆变器等电力电子电路上有很大的实用价值, 可以提高电路的转换效率. -1. In this paper, an efficient step-up PWM conversion circuit analysis study on the switch to switch the state of high effi
zuixiaofanshu
- 最小范数法实现谐波信号的频率估计,估计精度高-Minimum norm method to achieve the frequency estimation of harmonic signals, it is estimated that high-precision
325665132171
- 小功率调频发射机课程设计通常小功率发射机采用直接调频方式,它的组成框图如下所示。其中高频振荡级主要是-Low-power FM transmitter curriculum design is usually a low-power FM transmitter direct way, its composition diagram as shown below. One class of high frequency oscillation is mainly
200471711251525
- 高频变压器设计软件,很有用,是个EXCELL小软件-High-frequency transformer design software, very useful, is a small software Excel
sin
- DA产生正弦波,波形很高,想使频率变大code可以抽调一半-Generated DA sinusoidal waveform high frequency to make larger half of the code can be deployed
DIVCLK
- 该程序是用VHDL语言实现的时钟分频程序,可以把高频时钟信号分成低频时钟信号,便于实际应用。-The program is the realization of VHDL language program the clock frequency, high frequency clock signal can be divided into low-frequency clock signal, to facilitate the practical application.
sanjiaobo_gaoping
- 基于MATLAB的三角波的高频触发信号,不是自带模块 -MATLAB-based high-frequency triangle-wave trigger signal, rather than bring their own module
CLOK
- 时钟分频。使用原有高频信号,将其10倍频,得到可用于八段数码管显示的扫描信号-Clock frequency. The use of the original high-frequency signal, frequency-doubling of its 10, the eight can be used to display the scanned digital signal
shujucaiji
- 用VB编写的数据采集界面,实现对数据采集卡的控制,实现高频采集-Written by VB data acquisition interface to realize the control of data acquisition card to achieve high-frequency acquisition
StopWordListExpanded
- 停用词表扩展,里面有所有的常用的停用词,在信息检索时需要进行去高频词的操作,就需要停用词表,需要的下载-Disable vocabulary expansion, which have all the common stop words, in the information retrieval to the high-frequency words when the need for the operation, you need to stop word table, need to dow
work
- fsk modulation Frequency shift keying (FSK) is the most common form of digital modulation in the high-frequency radio spectrum, and has important applications in telephone circuits. This article provides a general tutorial on FSK in its man
jj
- 本题设计一个数字存储示波器,以Xilinx公司20万门FPGA芯片为核心,辅以必要的外围电路(包括信号调理、采样保持、内部触发、A/D转换、D/A转换和I/O模块),利用VHDL语言编程,实现了任意波形的单次触发、连续触发和存储回放功能,并按要求进行了垂直灵敏度和扫描速度的挡位设置。信号采集时,将外部输入信号经信号调理模块调节到A/D电路输入范围,经A/D转换后送入FPGA内部的双口RAM进行高速缓存,并将结果通过D/A转换送给通用示波器进行显示,完成了对中、低频信号的实时采样和高频信号的等效采
87106RFswith
- 用于高频RF信号的切换,和高频继电器差不多,主要用在通讯方面-Switch for high-frequency RF signals, and similar high-frequency relays, mainly used in communications
naromagcore
- 纳米晶磁芯资料,由秦皇岛燕秦纳米科技公司提供,同于准备开发大功率高频电源。-Nanocrystalline core materials, by the Qinhuangdao Yan Qin nanotechnology companies, with the development of high-power high-frequency power in preparation.
frequencymeter
- 测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速,以及便于实现测量过程自动化等优点,是频率测量的重要手段之一。-Measuring the frequency of means, including electronic counter to measure frequencies with high precision, easy to use, fast measurement and easy to realize the advantages of automa
xiaobo
- 小波变换去噪,matlab源代码,可以去除高频噪声-Wavelet denoising, matlab source code, can remove high frequency noise
DSP-protect
- 系统采用一阶差分与全周傅氏算法相结合的 值。通过一阶差分去除信号中的直流分量与低 信号中的高频分量,并将信号转换为相量表示-System uses the first difference Fourier algorithm with the whole week combined value. Removal of the signal by the first difference in the DC component and low signal in the high freq
pilotbasedchannelestimatininOFDMsystems
- 频域不同导频密度的信道估计在被研究,并且在高低时延信道其信道估计被固定了导频分配时域。频域信道估计是基于插补,多项式的广义线性模型(或最小二乘法)和维纳滤波(或线性最小均方误差法)的方法。时域的信道估计是用线性插补完成的。我们通过测量在基于克拉克散射模型的瑞利衰落信道上并带有QPSK调制的粗误码率,已经比较了所有这些方案的结果。-Different pilot density in frequency domain channel estimate to research, and its hi
frequency-meter
- 主要是处理分频后,显示数据的代码。运用高速sn74f163a分频后,运用单片机的外部中断和定时器,在数码管上显示.可以处理几十兆的频率。-Processing after the number of high frequency division frequency display code
High-Pass Enhance
- 在频率域进行高频增强和高频提升滤波,使用巴特沃斯滤波器(High frequency enhancement and high frequency lifting filter in frequency domain, using Butterworth filter)