signal_processing

matlab下的小波消噪源程序，能较好的对非平稳信号进行滤波消噪(matlab source code under the wavelet denoising can be better to filter the non-stationary signal denoising)

是数字信号处理当中用到matlab的程序，帮助理解和编程(failed to translate)

说明：  改进的小波阈值去噪法，但是其中有点不对，不知道会不会对大家有用，想看的下哈(Improved wavelet threshold denoising method, but one a bit wrong, do not know will not be useful to everybody, want to see the next Ha)

this code gives information about solar panel rotation and direct light falling on it

利用KNN最近邻算法，对心音信号进行分割并判断，给出第一心音、第二心音和收缩期、舒张期。(Use KNN nearest neighbor algorithm, the heart sound signal is divided and judgment is given first, second heart sound and systolic, diastolic.)

2015国赛A题太阳影子定位全国二等奖程序源码(A 2015 national title game sun shadow geopositioning second prize Open Source)

依次输入exchange swap tianchongJ即可，若想修改全排列矩阵的大小，可在MATLAB中打开tianchongJ修改J和N。 (Enter exchange swap tianchongJ in turn can, If you want to modify the full array matrix size can be modified in MATLAB to open tianchongJ J and N.)

matlab代码，用于计算小波基mallet的程序，对学习小波变换很有用(matlab code used to calculate the wavelet mallet procedures, the study of wavelet transform is useful)

有N件物品和一个容量为V的背包。第i件物品的费用是c，价值是w。求解将哪些物品装入背包可使这些物品的费用总和不超过背包容量，且价值总和最大。(There are N items and a knapsack capacity of V' s. No. i is the cost of items c, the value of w. Solving items into the backpack which will enable the cost of these items does not exceed the sum of the capacity of backpack, and the sum of the maximum value.)

对信号进行短时傅立叶变换，输出的序列在进行循环平稳处理，最后用mesh函数进行3维画图。()