HW1_2

很有用的源代码，实现的效果很好，很值得收藏，不错平(Useful source code, to achieve good results, it is worth collecting, good level)

说明：  lab颜色模型下的图像分割方法，在matlab下编写，对生物图像很有用的。(lab model of color image segmentation methods in Matlab to prepare for biological images very useful.)

说明：  根据滚降系数画出滚降系统频谱，并画出相应的时域波形(According to the roll-off factor to draw the spectral roll-off and draw the corresponding time-domain waveform)

matlab程序，解决sift算法对图像特征点的检测，描述和匹配，特征点个数的计算以及程序运行时间，可与其他算法做比较，直接修改参数即可运行(matlab for image matching，include the time and the number of the interest points)

说明：   模拟退火算法求函数 f(x)的最小值点， 且 l <= x <= u f为待求函数，x0为初值点，l，u分别为搜索区间的上下限，kmax为最大迭代次数 q为退火因子，TolFun为函数容许误差 算法第一步根据输入变量数，将某些量设为缺省值( Simulated annealing algorithm of a function f (x) the minimum point, and l &lt = x &lt = u f is the unknown function, x0 as the initial point, l, u, respectively, lower and upper limits for the search interval, kmax is the maximum q iterations for the annealing factor, TolFun as a function of allowable error algorithm is the first step according to the number of input variables, set default values for certain amount of)

这是EMD的程序吧，里面的子程序也重新整理好的，本人已经调试成功！(This is the EMD program,it contains the subcode and I have debugging it sucessfully)

matlab中矩阵的操作，一些简单的操作，记不住的时候，可以看看( matrix operations in matlab)

通信系统基础知识 Matlab应用软件的基本知识以及基本操作技能 数字调制与解调 用软件matlab完成一个典型的通信系统的仿真，其中信源，数字化方式，基带码，信道码，调制方式(Basic knowledge of the communication system The Matlab application software basic knowledge and basic skills Digital modulation and demodulation Use the software matlab completion of a typical communication system simulation, wherein the source, the digitized baseband code, channel code, modulation scheme)

用Matlab仿真了基于EPC-C1G2标准的RFID阅读器发送模块的PIE编码及ASK调制。(Simulation using Matlab based on EPC-C1G2 standard RFID readers to send the module code and ASK modulation PIE.)

matlab关于多天线相关矩阵的子程序，调用输入为天线间距，到达角度，和角度扩展(matlab on multi-antenna correlation matrix of the subroutine, call input antenna spacing, arrival angle, and angle expansion)