20171020_1544

APM-PMBOK-CN 对PM的九大知识领域都有介绍-APM- FROM- CN PM on the nine knowledge areas have introduced

实现信号保存至文本格式，截取有用信号以便后续处理。(Save the signal to the text format and intercept the useful signal for subsequent processing.)

说明：  wifi室内定位，可以单独使用WiFi在室内定位。(wifi indoor positioning)

说明：  一些关于无人驾驶的仿真实例，可能会有些帮助(Some simulation examples of unmanned driving may be helpful)

通过使用stm32，自主研发的自助视力检测仪器压缩包为stm32的程序(Through the use of STM32, self developed self-help vision testing instrument compresses the package of STM32.)

说明：  十分有利于求解非线性问题，尤其是在土木工程等工程类领域(It is very helpful to solve nonlinear problems)

说明：  以悬臂梁为例，用有限元法编程生成质量矩阵和刚度矩阵（采用平面梁单元，单元数在10到30之间）。 使用matlab的用于广义特征值问题分析的函数（eig(A,B,'chol')，该命令使用乔莱斯基分解的方法，计算对称矩阵A和对称正定矩阵B的广义特征值问题。A对应刚度矩阵，B对应质量矩阵）计算梁的前三阶固有频率和振型，计算得到梁的前三阶固有频率和振型，并画出振型图。(Taking cantilever beam as an example, the mass matrix and stiffness matrix are programmed by finite element method (using planar beam elements, with units ranging from 10 to 30). Using Matlab's function (eig (A, B,'chol') for the generalized eigenvalue problem analysis, the command uses the Jo Lessky decomposition method to calculate the generalized eigenvalue problem of the symmetric matrix A and the symmetric positive definite matrix B. A corresponds to the stiffness matrix and B corresponding to the mass matrix. The first three natural frequencies and modes of the beam are calculated, and the first three natural frequencies and modes of the beams are calculated, and the vibration pattern is drawn.)

三层地层——地质模型人工合成理想地震剖面，第一层为水平地层，第二层为双层倾斜地层，第三层为一楔形体。通过使用雷克子波与随机数组合成的反射系数褶积合成地震剖面。(The three layer - geological model is used to synthesize the ideal seismic profile, the first level is the horizontal stratum, the second is the double-layer inclined stratum, and the third layer is a wedge body. The seismic profile is synthesized by using reflector coefficient convolution synthesized by Reke wavelet and random array.)

说明：  皮尔逊Ⅲ型适线软件，MATLAB编程，GUI，可修改(Pearson-III distribution,Optimum line software,MATLAB,GUI)

用C++编的一个扫地雷游戏，代码清晰，有注释(A Minesweeper game C++ compiled, the code is clear, Notes)