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shangchuan
- 实现仿真信号的胡相关处理降噪,可以实现被白噪声污染的信号中有用信号的提取,并进行了fft变换,可以清晰的看清信号的频谱-Hu correlation processing to achieve the simulated signal noise, white noise contaminated signal in the extraction of the useful signal can be achieved, and fft transform, you can clearly se
Hilbert
- 该程序基于labview2012研发,利用希尔伯特变换实现提取信号的包络。一部分是对AM信号的仿真实验,另一部分是其通用形式,只需拷贝到自己的引用程序中即可。-The program is based on the labview2012 , the use of the Hilbert transform to extract the signal envelope. Part of the AM signal simulation, another part is in its generi
Extract-the-envelope
- 用hilbert算法对信号的包络线进行提取,既有单一包络线,也有原始信号与包络线的图像。-Algorithm using hilbert envelope signal extraction, both single envelope, there are images of the original signal and the envelope.
labview5
- 使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的:用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求:①输入信号为一正弦波,并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号(用以模拟含有噪声采样序列)。 (模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现,为了使滤波效果明显,本实验的高频噪声是用高频均匀分布白噪声(Uniform)通过Butterworth高通滤波器过滤生成的,高通滤波器的截止频率设为10
The-signal-processing
- 低频信号的生成、信号的调制与解调、信号的处理与提取等。-The signal processing
Extract-the-Sine-Wave
- 用LabView提取正弦波信号的源代码。适合音频设备设计人员使用。-Extract the Sine Wave
wave-propagation
- 宽带chirp信号中提取窄带信号,用于超声波损伤检测研究-Wideband chirp signal extracted narrowband signal, ultrasonic testing for injury
narrowbandsignal
- 从宽带信号中提取窄带toneburst信号,一次激励可以提取大量的超声窄带信号-Toneburst extract narrowband signal a broadband signal, a large number of ultrasonic excitation can be extracted narrowband signal
LMD分解
- 可以对振动信号进行局部均值分解以提取特征信号(The local signal can be decomposed to extract the characteristic signal)
demo
- 利用LabVIEW实现锁相放大器的功能,用于提取特定频率的有用信号的幅值,过滤噪声干扰,可以选择参考信号源为方波/正弦波(An lock-in amplifier built in LabVIEW)