relax

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

this package include moving object detection and hough transform to recognise parallel line in an image. a sample image included in package for test.

说明：  Median filter to image denoise (matlab)

circular shifting property of dft in one dimension

these codes used to implement OFDM transmitter and receiver with low out of band radiation. the number of subcarrier is flexible.

Kmanifoldes algorithm,matlab codes.

一种时频变换方法—伪Margenau-Hil分布，用于信号时频分析。(Of a time-frequency transformation method- Pseudo Margenau-Hil distribution for signal time-frequency analysis.)

Reliability Assessment With Dc Load Flow

ECG signal Processing

Gaussian white noise stimulus