mode-space-smooth-DOA

使用matlab仿真QPSK，包括调制、解调，有详细的源代码，仅供参考(QPSKsimulation)

QR码作为一种可高速、全方位识别的二维条码,已经在各行各业中得到了应用,并具有很大发展潜力.本文针对QR码图像的识别过程中可能遇到的图像噪声干扰、QR码占实际拍摄图像的一部分、倾斜、几何失真等问题进行了研究,提出了通过改进型中值滤波去除噪声,使用QR码符号特性定位并对倾斜图像进行旋转,对失真不严重的图像采用控制点变换和双线性插值方法进行几何校正.实验证明, 本文的方法简单有效, 可以用于提高条码的正确识别率.(As a high-speed, full identification of the two-dimensional bar code, QR code has been applied in all walks of life, and also has great potential for development. In this paper, aiming at QR code image recognition process may be encountered in noise interference, QR code accounting for the actual captured image just a part, slant, geometric distortion, and other issues have been studied, put forward through improved median filter to remove noise, use QR code symbol characteristics to locate and rotate the tilted image, distortion which is not serious use control-point transform and spatial bilinear interpolation method for geometric correction. The results show that this method is simple and effective, can be used to improve the QR code correct recognition rate.)

SGP4航天器轨道预报模型的MATLAB程序，可直接使用并对其进行二次开发。(Matlab program of SGP4 model for orbit prediction of spacecrafts.)

四节累计量与music算法的结合，可很好的消除噪声。(forth combine with music,which can decrese noise)

能量熵的计算，均值便宜跟踪的示例，小波包分析提取振动信号中的特征频率。( Energy entropy calculation, Example tracking mean cheap, Wavelet packet analysis to extract vibration signal characteristic frequency.)

通过对非线性系统进行线性化，掌握状态反馈线性化方法的过程，并通过Simulink仿真过程，验证设计的控制率能否满足设计要求并进一步掌握状态反馈线性化方法(By linearization of nonlinear systems, state feedback linearization method to master the process, and by Simulink simulation verify the design of control rate can meet the design requirements and to further understand the state feedback linearization method)

MATLAB环境下基于OFDM系统的64QAM模式调制(64QAM modulation based on the OFDM system)

Programs using Matlab language that can be used as exercices

说明：  数据挖掘中的c4.5算法 给予决策树(Data Mining in the given decision tree algorithm c4.5)

可以直接运行的人脸定位跟踪程序，包含相应的视频文件(Can be run directly face positioning tracking program, including the corresponding video files)