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Two
- 离散信号处理 1、信号的生成方法 2、频域信号的分析 3、求正弦信号的频率 4、求正弦信号的加入时间 5、滤波器的设计
chengxu3
- 用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图
sin_noise
- 通过滤除图像中混杂的正弦噪声实现功能，屡噪并进行频率分析使得图像像素点清晰纯净-Through the filter image noise mixed to achieve sinusoidal function, and the frequency of repeated noise analysis makes clear pure pixel Image
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
Waveform-generator-based-on-Labview.
- 基于Labview的任意波形发生器,可以生成两路标准的正弦波、方波、三角波、锯齿波，其频率、幅值、相位、电压偏置可设。-The arbitrary waveform generator based on Labview, sine wave, triangle wave, Fang Bo, Ju Chibo can generate two standard, the frequency, amplitude, phase, voltage bias.
The-Fourier-transform
- 将时域信号分解为不同频率的正弦信号或余弦函数叠加之和。连续情况下要求原始信号在一个周期内满足绝对可积条件。-The time-domain signal into different frequency sine or cosine function signal superimposed sum. Required to meet the continuous case the original signal is absolutely integrable conditions in a s
wavelet_frequencydetection
- 利用小波分析将一个给定信号的各频率成分区分开（信号由三个不同频率的正弦波组成）-Using wavelet analysis to distinguish a given signal of different frequency components (signal is composed of three different frequency sine wave)
matlab
- 应用LSE 算法估计载波频率和相位，又称为锁相环。使用初值和迭代算法，估计频率和相位值，并根据估计出的频率和相位值画出估计得正弦波。将正弦波真值和估计值画在同一个图中，每更新一次，重新绘制两个波形，最终需要画出演示视频中的效果：估计出的波形逐步靠近真正的波形。-Use the initial and iterative algorithm, estimate the frequency and phase values, and according to the estimated freque