搜索资源列表
ExpSin
- MyExpSin产生一个幅值为 5,频率为20Hz,衰减系数为-10 的指数衰减正弦信号-MyExpSin produce a amplitude for 5, frequency of 20 Hz, attenuation coefficient for-10 index sine signal attenuation
Sin
- MyExpSin产生一个幅值为 5,频率为20Hz,衰减系数为-10 的指数衰减正弦信号;-MyExpSin produce a amplitude for 5, frequency of 20 Hz, attenuation coefficient for-10 index attenuation sine signals
Signal-Analysis
- 基于020的简易信号分析仪,能够实现40khz以下的方波、三角波、正弦波频率、幅值检测及频谱分析。-Signal-Analysis system based on 020. Measuring magnitude, frequency of square,triangle,and sin signal under 40khz,including frequency spectrum analysis.
STATE_9852
- FPGA控制DDS芯片AD9852,产生幅值和频率可调的正弦信号-FPGA control AD9852 state
UC
- 一波形发生器,可以产生正弦波、方波、三角波,频率和幅值可调;按键选择输出波形;按键调节输出信号频率和电压幅值。其扩展功能:频率调节步进值为1Hz;电压幅值调节步进值为0.5V。-A waveform generator can generate a sine wave, square wave, triangle wave, frequency and amplitude can be adjusted Key choice output waveform Adjust output sig
eda
- EDA 正弦信号发生器:正弦信号发生器的结构有四部分组成,如图1所示。20MHZ经锁相环PLL20输出一路倍频的32MHZ片内时钟,16位计数器或分频器CNT6,6位计数器或地址发生器CN6,正弦波数据存储器data_rom。另外还需D/A0832(图中未画出)将数字信号转化为模拟信号。此设计中利用锁相环PLL20输入频率为20MHZ的时钟,输出一路分频的频率为32MHZ的片内时钟,与直接来自外部的时钟相比,这种片内时钟可以减少时钟延时和时钟变形,以减少片外干扰 还可以改善时钟的建立时间和保持时
ICL8038
- 基于AT89S52单片机的设计,通过8038产生方波,正弦波,三角波,实现信号频率可调-Signal generator
example_0
- 首先信号建模,两种频率的正弦信号叠加,加白噪声和脉冲信号;对叠加信号滤波并提取特征-First, signal modeling, the two frequencies of the sinusoidal signal superimposed with white noise and the pulse signal superimposed signal filtering and extract features
dds_wave
- 基于数字频率合成技术DDS,在quartusii编写相关代码,实现正弦信号输出,同时可以实现调幅、调频和数码管闲事-Based on the digital frequency synthesis technology of DDS, written in QuartusII code, achieve sinusoidal signal output, and can achieve amplitude modulation, frequency modulation and digital
music_single_sin
- 白噪声中单个正弦信号的频率检测与估计 产生,其中是一高斯白噪声,其均值为0,方差为1。用MUSIC方法估计观测数据中正弦波的频率,并给出白噪声方差()un2uσ 与复正弦波的振幅A的估计值。-A single frequency detection and estimation of the sinusoidal signal in white noise, which is a Gaussian white noise with mean 0 and variance 1. MUSIC m
sina
- 使用DSP产生300—4000HZ的正弦信号,要求使用计算法,并且频率可变、幅度可变、直流分量可变。用软件CCS5500编程实现,并硬件(DSK板或示波器)连接进行功能演示。 使用DSP产生300—4000HZ的方波和三角波。 -Using DSP to produce 300-4000HZ of, sinusoidal signal, require the use of calculation method, and a variable frequency, amplitude v
sin
- 利用fpga实现低频率(100khz以下)的正弦信号发生,另外可以改频率。非常方便-The use of the fpga achieve low frequency (100khz below) sinusoidal signal, the other can change the frequency. Very convenient
51-sin_signal
- 使用51单片机实现正弦波信号频率可控输出以及回测,12864液晶显示。-Sine wave signal frequency controlled output, and back-tested 51 single-chip, the 12864 LCD.
Signal-frequency-estimation
- 对于噪声中的正弦信号,通过周期图法、AR模型法、Pisarenko谐波分解算法、MUSIC算法和ESPRIT算法进行频率估计,使用N=128个数据样本进行估计. -By the periodogram method, AR model method, the Pisarenko harmonic decomposition algorithm, MUSIC algorithm and the ESPRIT algorithm for sinusoidal signals in noise,
Sine-signal-superposition
- 分别画两个频率不同的正弦信号及他们叠加的信号,y1、y2及他们的叠加信号进行采样,进行傅里叶变换,幅频图,频谱图-Videos two sinusoidal signals of different frequencies, and their superimposed signal, Y1, Y2 and their superimposed signal to be sampled, the Fourier transform, amplitude and frequency diagram
Sine-signal-frequency-measurement
- 用labview实现正弦信号发生及其频率和相位测量 -Sine signal frequency and phase measurement using labview
PWM-P-a-low-frequency-sine-signal
- 本实验要求使用PIC16F877A的CCP1模块的PWM功能和一个一阶RC低通滤波器产生一个5Hz的正弦信号。要求用示波器观察产生正弦信号的频率为准确的5Hz,且没有明显的失真。没有条件的读者可以通过观测直接和CCP1输出引脚相连的LED的闪烁频率来确定产生正弦信号的频率。-PWM function of the requirements of the experimental use PIC16F877A CCP1 module and a first-order RC low-pass fi
ltc2614_spi_cosx32768
- 基于xilinx spartan 3e 开发板的正弦波信号发生,通过fpga查找ROM正弦信号表,将数字信号通过spi接口写入开发板上的12位DA芯片ITC2614。通过DA转换产生正弦波。ROM深度为32768,表示一个正弦周期最多可以有32768个点。可以通过修改相位累积值和ROM表来设定输出正弦波的频率。程序本人编写和上板实测。-Sine wave signal occurred on xilinx spartan 3e development board fpga Find ROM si
aa
- 用matlab对正弦信号进行不同采样频率的采样分析,并画出图形;matlab卷积源程序-The sampling and analysis of the sinusoidal signals of different sampling frequencies
DPLL_REASERCH
- 本课题研制了一种宽频带的数字锁相放大器,可以完成自动增益和相位 可调整,最长积分时间为100s,适合于频率从10Hz到10kHz,幅值从100nV 到10mV的微弱正弦信号检测。测量结果表明,当采样点数N大于8192时, -This project developed a wideband digital lock-in amplifier, can be completed automatically adjustable gain and phase, the longes