GPSsignal_acq

无刷双馈电机的dq和直接转矩模型 实现了无双馈电机的直接转矩控制，并且控制效果良好(The BDFM dq and direct torque model to achieve unparalleled fed motor direct torque control, and good control effect)

说明：  将邻接矩阵转移到gaiph可识别的矩阵，从而可以将邻接矩阵可视化，并可以通过gaiph软件美化(Transfer the adjacency matrix to the gaiph-recognizable matrix)

This code implements the concept of content based image retrieval concept using the technique described in The Application of DWT and SVD in Image Retrieval.

说明：  智能算法模拟退火算法（Simulate Anneal，SA）是一种通用概率演算法，用来在一个大的搜寻空间内找寻命题的最优解。模拟退火是由在1983年所发明的。在1985年也独立发明此演算法。模拟退火算法是解决TSP问题的有效方法之一。(Simulate Anneal (SA) is a general probabilistic algorithm to Simulate the optimal solution of proposition in a large search space. Simulated annealing was developed by. The algorithm was also independently invented in 1985. Simulated annealing algorithm is one of the effective methods to solve TSP problem)

说明：  1、基带码型仿真 （1）通过仿真观察占空比为50%、 75%以及100%的单、 双极性归零码波形以及其功率谱，分析不同占空比对 仿真结果的影响。 （2） 通过仿真产生一随机消息码序列，将其分别转换为 AMI码和HDB3码，观察它们的波形及其功率谱密度。 2、数字带通调制系统仿真 设计一个采用2ASK（ OOK） 调制的数字通信系统： 产生二进制随机数据，并仿真其对应的2ASK调制波形， 分析其频谱。所产生的调制波形加入不同信噪比的白噪声， 选取合适的接收方案，画出系统误码率曲线，并与理论误 码率进行对比。(1.Baseband pattern simulation 2. Simulation of digital band-pass modulation system)

GPS捕获代码，可用于MATLAB仿真的源码(gpa acquisition)

说明：  基于稀疏贝叶斯学习的窄带信号波达方向估计，实测有用，亲测有效！(Based on the sparse Bayesian learning, the narrow-band signal direction estimation is useful, and the pro-test is effective!)

为了对空间辐射源进行精确定位" 建立了基于任意阵列对多目标源进行二维DOA估计的数学模型。将 MUSIC算法推广到三维空间阵列可以对辐射源进行二维高精度测向,但由于其需要估计接收数据的协方差矩阵和进行特征分解, 因而其计算量较大。利用多级维纳滤波器的前向递推获得信号子空间和噪声子空间，不需要估计协方差矩阵和对其进行特征分解，从而降低了MUSIC算法的计算量。将文中的方法应用于任意阵列的二维DOA估计中进行计算机仿真和实际侧向系统性能验证,实验结果均表明该方法达到了MUSIC算法的性能,但与常规MUSIC算法相比降低了计算量.( In order to space radiation source for precise positioning" based on arbitrary array to multiple target source 2D DOA estimation model. The MUSIC algorithm is extended to three-dimensional space to two-dimensional array of radiation source for high precision direction finding, but due to the need to estimate the covariance matrix and eigenvalue decomposition, and the large amount of calculation. Use of multistage Wiener filter forward recursion received signal and noise subspace, does not need to estimate the covariance matrix and the eigenvalue decomposition, which reduces the computation of MUSIC algorithm. This method is applied to an arbitrary array DOA estimation for computer simulation and actual lateral system performance verification, the experimental results show that this method achieves the performance of MUSIC algorithm, but with the conventional MUSIC algorithm reduces the calculation amount.)

通过MATLAB做一个用户登录的GUI页面，实现登录、注册等功能(Make a user login GUI page through MATLAB to realize login, registration and other functions.)

说明：  用于多种图像去噪，图像锐化，包括图像浮雕效果等图像处理方法。(used in a variety of image denoising, image enhancement, including the effect of such images carved image processing methods.)