OFDM_channel_estimation_and_decoding

说明：  用Matlab编的BPSK程序，简单准确(Using Matlab program for the BPSK, simple and accurate)

Savitzky-Golay Filtering of a Speech Signal Smooth the mtlb signal by applying a cubic Savitzky-Golay filter to data frames of length 41.

This code is very useful to find the hamming distance

matlab matrix processing functions

mimo-ofdm system simulation

说明：  bpsk仿真中间有两个方面的内容，很好的仿真软件(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. )

在MATLAB中仿真，挖掘机动臂控制系统的数字PID设计(Excavator arm control system design of digital PID )

说明：  自适应中值滤波器的滤波方式和传统的中值滤波器一样,都使用一个矩形区域的窗口Sxy,不同的是在滤波过程中,自适应滤波器会根据一定的设定条件改变(即增加)滤窗的大小,同时当判断滤窗中心的像素是噪声时,该值用中值代替,否则不改变其当前像素值,这样用滤波器的输出来替代像素(x,y)处(即目前滤窗中心的坐标)的值。(Adaptive Median Filter for filtering methods and the same as the traditional median filter, use a rectangular area of the window Sxy, different in the filtering process, the adaptive filter in on certain Presumed Conditions change (an increase of ) filter window size, while when the judge is the filter window center pixel noise, the median value is used instead of, or does not change its current pixel value, so that the output with a filter to replace the pixels (x, y) Office (that is, coordinates of the current filter window centered) values.)

cuckoo_search_new algorithm.it use for find short path problem

小波包分析提取振动信号中的特征频率，本程序的性能已经超过其他算法，信号维数的估计。( Wavelet packet analysis to extract vibration signal characteristic frequency, This program has exceeded the performance of other algorithms, Signal dimension estimates.)