IM-vector-control

OFDM系统中提出一种改进方法对频偏的捕获, 在联合使用9个短前导序列和长前导序列估计算法的基础上,采用鉴频环路的方法来消除算法中的除法和取模运算 (OFDM system in an improved way of deviation of the capture, in the joint use of nine short leader sequence and the long preamble sequence estimation algorithm, based on the frequency discriminator method to eliminate the loop algorithm in the division and modulo operation)

说明：  简单实用的SLM法降低OFDM峰均比。。。(matlab SLM method to reduce PAPR ofdm。。。)

I have provided the code for watermarking and calculatuin of MSE , PSNr and comparison.

自己编写的灰度图像的锐化函数，可以提取边缘，保留背景区域。(I have written grayscale image sharpening function, can extract the edge of the the background area reserved.)

svm的一种特征选择方法，基因选取算去，减少特征数量，减少运算时间，也可提高运算精度(svm a feature selection method, gene selection operator to reduce the number of features to reduce the computation time, but also can improve the calculation accuracy)

数字控制系统是一种以数字计算机为控制器去控制具有连续工作状态的被控对象的闭环控制系统。因此，数字控制系统包括工作于离散状态下的数字计算机和工作于连续状态下的被控对象两大部分。我的课题的数字部分（PID）仿真由相应的离散传函实现，运用数字PID对被控对象实行准确控制。通过调节比例（P）、积分（I）、微分（D），使对象的输出达到预期的效果。(Digital control system is a kind of digital computer for the controller to control a continuous state of the object and closed loop control system. Therefore, the digital control system, including work on the discrete state of the digital computer and work in a continuous state of the plant is two parts. My topic of digital section (PID) simulation by the realization of the corresponding discrete transfer function using the digital PID control of the plant is implemented accurately. By adjusting the ratio of (P), integral (I), differential (D), so that the output of the object to achieve the desired results.)

自己编写多点采集数据处理程序，用于数值仿真多点采集，很好得到一个平均曲线，非常好用，用COMSOL仿真后处理，读CSV文件格式(Write your own multi-acquisition data processing program for the numerical simulation of multi-point acquisition, good to get an average curve, very easy to use COMSOL simulation post-processing, read the CSV file format )

说明：  用matlab产生符合要求的余旋信源，并设置载波频率，运用DSB调制画出调制后波形。(Using matlab to generate more than spin source to meet the requirements and set the carrier frequency, modulation using DSB modulated waveform draw.)

matlab编写的文本分类的程序，可以对已经分好词的文本进行分类，先自己导入数据，用libsvm中的svm进行分类和预测，特征用tfidf算法，还利用卡方检验进行了特征选择，可自行设定阈值。(matlab prepared text classification program, you can have a good word of text classification, classification and prediction using libsvm in svm, characterized by tfidf algorithm, also used the chi-square test was used for feature selection, you can set thresholds on their own.)

说明：  基于KPCA的对葡萄酒数据的降维处理，将13维数据降维成小于13维的，可选(KPCA-based dimensionality reduction of wine data)