PreCoding_Matrix_gen

code of implementing the K-Nearest Neighbor method

三电平变换器的SIMULINK模型，适合三电平变换器及其PWM产生算法的初学者。(This is a simulink model of three level converter, which is suitable for the beginner in this field.)

一个用matlab编写的用公式算法解决微波网络中的双支节匹配的问题(An equation using matlab algorithm to solve microwave network using the double-stub matching problem)

捷联惯导与行位推算，构成组合导航系统，INS和航位推算组合(The SINS line reckoning that constitute the integrated navigation system, INS, and the combination of dead reckoning)

说明：  EM算法MATLAB实现，有中文注释，详细描述了具体开发的案例。(EM algorithm in MATLAB, Chinese notes, detailed description of the specific case of the development.)

DFT和FFT的matlab实现及算法差异的证明，如复杂度等。（精度、不同长度的序列等）。(DFT and FFT algorithm matlab realize the difference and proved as complex and so on. (Accuracy, sequences of different lengths, etc.).)

通过此代码，实现OFDM调制。设定子载波个数为6，每个信道的比特数是4000(OFDM MODULATION)

说明：  一个对统计数据做主成分分析的小程序，在Matlab环境下可以对需要统计的数据快速得到其个主成分分量。(An analysis of statistical data elements applet call the shots in the Matlab environment for statistical data on the need to quickly get the two principal components.)

说明：  自动控制系统中滑膜变结构控制matlab仿真程序(Automatic Control System of Variable Structure Control of synovial matlab simulation program)

依次阐述了非线性动力系统的建模，单自由度自治系统、单自由度非自治系统和多自由度系统的分析方法及动力学行为(Turn on the modeling of nonlinear dynamical systems, single degree of freedom autonomous system, single degree of freedom analysis methods and dynamic behavior of the non-autonomous system and multi-degree-of-freedom system)