hpf_f

实现机械故障在线检测， 实时控制，叶片裂纹的检测控制与报警。使得企业或者使用人员很方便的观测机械的故障并及时修正。(Mechanical fault diagnosis system)

说明：  最短路有算法:dijkstra.matlab编译(shortest routing--dijkstra)

基于ESPRIT算法的DOA估计，利用ESPRIT算法进行DOA估计(DOA estimate with arithmetic)

说明：  最小二乘法进行系统辨识，有学这方面的可以进行很好的参考(Least squares for system identification, a study in this area can be a good reference)

PIECE-WISE LINEAR APPROXIMATIONS

to plot in matlab

抽取法产生m序列优选对，并产生与之对应的所有Gold序列；做出了Gold码的自相关与互相关函数；验证了Gold码的个数(Extraction method m sequence pairs, and generate the corresponding Gold sequence to make a Gold code autocorrelation and cross correlation function to verify the number of Gold codes)

无周期伪随机码P码，该程序可即时产生长码，可以控制生成长度(P code)

说明：  运用递推最小二乘法对传感器建模仿真并对其惊醒补偿(Recursive least squares method using modeling and simulation of sensor and compensate for its wake)

This code use Principle Component Analysis(PCA)for feature extraction