MG_PQ.mdl

说明：  基于振动信号的滚动轴承故障诊断的方法研究.nh(Based on the vibration signals of rolling bearing fault diagnosis method. Nh)

Newton-Raphson s Method of Rootfinding

matlab宝典电子版上，陈杰等编著，电子工业出版社出版。(A third edition of the electronic version of the book matlab, Chen Jiedeng edited, Publishing House of Electronics Industry.)

The architecture of this set of codes and the interaction among them is shown in Figure 1. The main testing code main code.m calls the code riemann grad unit opt.m that performs Riemannian optimization under unitary matrix constraint. Steepest Descent/Ascent (SD/SA) algorithm (see Table 3.2 in [1]), Conjugate Gradient (CG-PR, CG-FR) algo- rithms (both Fletcher-Reeves and Polak-Ribi`ere formulas, see Table 3.3 in [1]), are im- plemented. This code further calls the codes implementing line search methods: Armijo method geod search armijo.m, as well as the polynomial and DFT-based approximation

ldpc码校验矩阵的生成函数，测试可以使用的文件啦啦(Lala code file generation function ldpc parity check matrix, the test may be used)

State Space Simulink Model with Two variables.

跳扩频信号的时频分析，对研究信号检测与参数估计的非常有帮助，时频图清晰明了，很好的程序(When frequency hopping spread spectrum signal analysis, the study of signal detection and parameter estimation is very helpful, time-frequency diagram clarity, good program)

matlab工具箱,使用有限元计算ODEs(常微分), PDEs(偏微分),BVPs(边值问题),包括一维,二维,三维.(Matlab Finite Element toolbox,version2.01)(This is a toolbox for computing ODEs or PDEs in BVPs using FEM in 1D, 2D and 3D)

Matlab_基于角点信息和透视变换的图像镶嵌(Based on the corner Matlab_ information and perspective transformation of the image mosaic)

双馈电机的低电压穿越技术，电力科学院迟永宁(Double-fed motor low voltage across the technology, Electric Power Research Institute no later than Yongning)