sig_sub_b

直接4bit替换法的图像伪装技术以及对第四bit考察的matlab代码，其中需要两幅大小一样的图像(Direct 4bit image replacement method camouflage technologies, as well as inspection of the fourth bit of matlab code, one of two required size images)

data based for face recognition

关于ofdm的MATLAB程序，包括收和发两个部分，考虑比较充分(On the MATLAB OFDM procedures, including admission and issued in two parts, to consider more fully)

主要是用于图像能量的提取，效果不错，可以使用(Is mainly used to image the extraction of energy, the effect is good, can use)

这是基于约束最大期望算法的matlab程序，对参数估计及图像分割有较大作用(This is based on expectations of the biggest constraint algorithm Matlab procedures, parameter estimation and image segmentation greater role)

该函数实现标准的卡尔曼滤波算法，用于状态估计，目标跟踪(kalman filter)

QGA_fxy是用量子遗传算法（quantum genetic algorithm）解决二元函数寻优的问题。文件打开后运行QGA_fxy.m文件即可得到结果，代码中有详细注释，方便修改。运行示例已经保存为图片附在压缩包中。(QGA_fxy binary function is to solve optimization problems using quantum genetic algorithm (quantum genetic algorithm). Run QGA_fxy.m file to get the file to open the result, the code has detailed notes, easy to modify. Run the sample has been saved as a picture attached to the compressed package.)

说明：  蚁群算法是模拟蚁群觅食行为的一种优化算法。在整个觅食过程中蚂蚁散播信息素，蚂蚁通过感知到的信息素多少，来决定所要选择的下一个栅格。蚁群算法的核心部分在于模拟了蚁群的转移概率选择行为，通过使用信息素和启发式函数值进行转移概率计算。粒子群算法可以用于机器人运动轨迹规划，求得最短路径(Ant colony algorithm is an optimization algorithm to simulate foraging behavior of ant colony.The ant disperses pheromones throughout the foraging process. The ant senses how many pheromones it has to choose the next grid.The core part of ant colony algorithm is to simulate the transfer probability selection behavior of ant colony and calculate the transfer probability by using pheromones and heuristic function values.Particle swarm optimization (pso) can be used for robot trajectory planning to obtain the shortest path)

介绍了原型滤波器的设计，并比较了不同混叠因子下滤波器的性能(this code include the design of the prototype filter,which is widely used in the multicarrier communication.we also compare the performance with different coefficient.)

用matlab计算图片中圆心的坐标，先进行区域分隔，打标记，再计算各个圆心的坐标，有一定的实用型(calculated using Matlab pictures of the center coordinates first regional segregation, marking, calculate the coordinates of the center of each, to a certain extent practical)