wind

matlab bacpropagation neural network

离散数据频谱分析，采样数据进行离散后，获取信号中的周期运动信息(matlab，FFT，frenquence chart)

用同步检波法解调DSBSC信号通信模拟调制仿真(DSBSC demodulated signal communication with analog modulation simulation synchronous detection method)

对输入的数字图像进行二维离散傅立叶变换，由matlab实现(The input digital image to two-dimensional Discrete Fourier Transform, from matlab realize)

关于数字信号处理的几篇PPT文档(IIR/FIR滤波器设计等)，适合数字信号处理入门学习(Digital signal processing on several PPT files (IIR/FIR filter design, etc.), suitable for digital signal processing Introduction to learning)

一本来自清华大学出版社的matlab基础教程，非常适合初学者用。(It s a book about Matlab,and very useful.)

主板故障的确定，一般通过逐步拔除或替换主板所连接的板卡（内存、显卡等），先排除这些配件可能出现的问题后就可以把目标锁定在主板上(Motherboard fault is fixed, or replace the motherboard through the gradual removal of the connected board (memory, graphics, etc.), first rule out possible problems of these accessories can be targeted after the motherboard)

经典的基于短时能量和短时平均过零率的双门限检测方法(Classic double threshold detection method based on short-time energy and short-time average zero crossing rate)

final documents using ecg signal classifciation

MFCC algorithm for calculating mel frequenc cepstral coefficients.