An-optimal-training-signal

pmsm的矢量控制模型，喜欢的可以下载看看，不完善的地方欢迎大家讨论(PMSM Vector Control model, can enjoy the download and see, imperfect place welcomes everyone to discuss)

说明：   改进的蚁群算法应用于搜索信号有效带宽 信噪比SNR=-10dB 信号有效带宽250~300Hz ( Improved search algorithm for the effective bandwidth of the signal noise ratio SNR =- 10dB efficient bandwidth in 250 ~ 300Hz)

经典的功率谱估计，平均周期图法实现，已经加上了详细的注释(Classical power spectrum estimation, the average periodogram implementation, has added a detailed comment)

包含了傅里叶变换的幅频特性和相频特性，其中包括8点、16点、32点的程序代码，运行后可直接产生图形。(Includes Fourier transform amplitude-frequency characteristics and phase-frequency characteristics, including 8:00, 16:00, 32 points of the program code can be run directly the graphics.)

基于MATLAB的PCM系统实现，采用u律压缩算法，供测试使用(MATLAB-based PCM system implementation, using u-law compression algorithm for testing)

线性相关 求逐月异常序列x(n,12)和y(n,12)(n是年)的相关系数r(24)，其中j=1～12是1～12个月的情形，13～22是冬、春、夏、秋、冬季逐月、春季逐月、夏季逐月、秋季逐月、逐月、年、冬半年逐月（NDJFMA）、夏半年逐月（MJJASO）的序列的情形。(Linearly related to demand monthly abnormal sequence x (n, 12) and y (n, 12) (n is the year) the correlation coefficient r (24), where j = 1 ~ 12 1 ~ 12 months is the case, 13 22 is a winter, spring, summer, autumn and winter month by month, month by month in spring, summer, month by month, the monthly fall, month by month, year, month by month in winter (NDJFMA), summer half year monthly (MJJASO) the sequence circumstances.)

画出具有不同频率，相位的正弦信号及其DFT序列，并检验信号正交性(Draw different frequencies ,different phase of the sinusoidal signal ,and the DFT sequence, then check the signal orthogonality)

最小均方误差（MMSE）的算法，包含位置式PID算法、积分分离式PID，是小学期课程设计的题目，仿真效率很高的，用于信号特征提取、信号消噪，大学数值分析算法，处理信号的时频分析，合成孔径雷达（SAR)目标成像仿真。( Minimum mean square error (MMSE) algorithm, It contains positional PID algorithm, integral separate PID, Is the topic of the elementary school stage curriculum design, High simulation efficiency, For feature extraction, signal de-noising, University of numerical analysis algorithms, When processing a signal frequency analysis, Synthetic Aperture Radar (SAR) imaging simulation target.)

说明：  用MATLAB实现的不合格品率P控制图的绘制，只要将数据导入data.txt文件，然后在MATLAB中运行main.m文件即可打开绘图界面。（注意：路径要设置好）(the failure rate of P Commodities Control Map, as long as the data into data.txt documents, then in MATLAB run main.m document can be open graphics interface. (Note : To set a good path))

运用最小均方误差方法实现波束形成，包括均匀直线阵和平面阵(Using the minimum mean square error method to achieve beamforming, including the uniform linear array and planar array.)