fenjifenge1

基于异步电动机的矢量控制模块，应用于中压船舶电力推进系统，可实现6KV船舶电网推进系统的矢量控制功能(VC contrl)

tutorial based on researchdddd

说明：  mat lab designed filter

用镜像矩阵求出矩阵的QR分解（正交三角分解），并求解线性方程组，该方法不必选主元，但其计算过程非常稳定。也可用于求矩阵的广义逆和求解线性最小二乘问题。子过程QRDCMP用镜像矩阵求m*n矩阵A的QR分解，A=Q^TR,其中Q是m*m正交矩阵，R为m*n上三角矩阵；子过程QRBKSB用矩阵的QR分解求解线性方程组Ax=b，其中A为n阶非奇异方阵。(Matrix obtained with the mirror matrix QR decomposition (orthogonal triangular decomposition), and solving linear equations, the method does not have to choose the main element, but its calculation process is very stable. Can also be used to find the generalized inverse matrix and solving linear least squares problems. Sub-process of the mirror matrix QRDCMP m* n matrix A QR decomposition, A = Q ^ TR, wherein Q is a m* m orthogonal matrix, R is m* n upper triangular matrix subprocess QRBKSB a QR decomposition to solve the matrix linear equations Ax = b, where A is non-singular square matrix of order n.)

空间谱估计的经典算法，包括常规波束形成，最小方差无畸变法，以及MUSIC方法的算法比较(Classical spatial spectrum estimation algorithms, including conventional beamforming, minimum variance distortion method, and the method of comparison algorithm MUSIC)

用于车辆参数最优选取，求取目标函数最大、最小值，对非线性、多峰问题均具有较强的全局搜索能力(It is used for the optimal selection of vehicle parameters, and the maximum and minimum values of the objective function are obtained. It has a strong global search ability for nonlinear and multimodal problems)

FASTICA算法，快速不动点，新的迭代公式,运行良好(FASTICA algorithm, fast fixed point, a new iterative formula, running well)

《高等非线性动力学》-庞克来映射-相轨迹的源程序，怎么利用程序求解并画图(" Higher nonlinear dynamics" - punk to map- phase trajectory of the source, and how to use drawing program for solving)

采用matlab实现PMSM的仿真，应该是非常好用的啊，非常好用的啊(Achieve PMSM Simulation)

OFDM程序示例：采用64子信道，应用16QAM传输，每个子载波均传输相同的比特数4，不使用信道编码；使用迫零均衡和MMSE均衡，比较两者性能。(OFDM procedures Example: a 64-channel, application 16QAM transmission, each transmission subcarriers are the same number of bits 4, do not use channel coding the use of force balance and MMSE zero balance, compare the performance.)