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fsk-modulate_demodulate
- FSK调制解调波形,调制产生,非相干解调算法及其包络检测法实现,带通滤波,全波整流,低通滤波-FSK modulation and demodulation code and wave forms
ASk_test
- 2ASK信号的正交解调,包括2ASK信号的产生,与本地载波混频,低通滤波,求包络,恢复出原始信号等-the demodulation of 2ASK
1HIBERT
- hilbert提取心音包络.此程序包含心音信号的低通滤波、小波去噪、EMD分解、希尔伯特黄变换以及心音阈值定位一系列算法。-hilbert extract PCG envelope low pass filter This program contains heart sound signals, wavelet de-noising, EMD decomposition, Hilbert-Huang transform and hea
envelope_detection
- 包络检测的两种方法。一种使用平方+低通滤波,另一种使用Hilbert变换。-This example shows how to implement two methods of envelope detection. One method uses squaring and lowpass filtering and the other uses the Hilbert transform.
envelope
- 对数据信号进行希尔伯特包络 低通滤波包络(需要输入信号数据与采样频率)。(The Hilbert envelope low-pass filtering envelope is used for the data signal (the input signal data and the sampling frequency).)
lvbo
- 针对信号 进行各种铝箔然后处理信号 包络解调得到频谱(A variety of aluminum foil for the signal and then deal with the signal envelope demodulation to the spectrum)
轴承信号分析
- 共振解调的过程如下:首先对采集到的信号进行傅里叶变换,然后利用传感器自身的谐振频率进行分析,对滤波后的信号进行包络,包络以后去除了高频部分,得到包络信号,再对改进的包络信号进一步进行低通滤波,最后对最终得到的信号进行傅立叶变换求其频谱图。共振解调的原理及其过程可以用图2 来进行表述。(The process of resonance demodulation is as follows: First, Fourier transform