BPSK

对从金属棒材中提取的超声缺陷信号经过自适应滤波以后的极坐标显示图(polar graph of ultrasonic defect signal)

说明：  在matlab中模拟the Brownian movement 过程(the Brownian movement )

人工鱼群算法，在一片水域中,鱼往往能自行或尾随其他鱼找到营养物质多的地方,因而鱼生存数目最多的地方一般就是本水域中营养物质最多的地方，人工鱼群算法就是根据这一特点,通过构造人工鱼来模仿鱼群的觅食!聚群及追尾行为,从而实现寻优，以下是鱼的几种典型行为:(1)觅食行为:一般情况下鱼在水中随机地自由游动,当发现食物时,则会向食物逐渐增多的方向快速游去。(2)聚群行为:鱼在游动过程中为了保证自身的生存和躲避危害会自然地聚集成群，鱼聚群时所遵守的规则有三条:分隔规则:尽量避免与临近伙伴过于拥挤 对准规则:尽量与临近伙伴的平均方向一致 内聚规则:尽量朝临近伙伴的中心移动。(3)追尾行为:当鱼群中的一条或几条鱼发现食物时,其临近的伙伴会尾随其快速到达食物点。特点：1)具有较快的收敛速度,可以用于解决有实时性要求的问题 2)对于一些精度要求不高的场合,可以用它快速的得到一个可行解 3)不需要问题的严格机理模型,甚至不需要问题的精确描述,这使得它的应用范围得以延伸.停止条件1) 判断连续多次所得的均方差小于语允许的误差2）判断某个区域的人工鱼群的数目达到某个比率3）联系多次所获取的值均不能超过已寻找的极值。 (Artificial fish swarm algorithm, in the midst of the waters, the fish tend to own or trailing other fish to find places with more nutrients and thus the largest number of fish survival in general is a place where most of the nutrients in the waters, artificial fish swarm algorithm is based on thisa characteristics, by constructing artificial fish to mimic fish foraging clusters and rear-end behavior, in order to achieve optimization, several typical behavior of the fish: (1) foraging behavior: the general case of fish in the water at randomthe free-swimming, swimming quickly when food is found, then the food is gradually increasing in the direction. (2) cluster behavior: the fish swimming in the process of naturally clustered, and abide by the rules when the fish cluster there are three: separate rule: try to avoid overcrowding with neighboring partners in order to ensure their own survival and to avoid harm alignment rules: as far as possible consistent with the mean direction of the)

用db5小波分解嗲能质量信号 并低频部分高频进行重构 最后给出图像(Db5 can whine with the quality of the signal wavelet decomposition and reconstruction low-frequency part of the high-frequency image is given)

时间序列的G_P算法,计算出序列的关联维数d，然后利用嵌入维数m>=2d+1，选取合适的嵌入维数。(G_P time series algorithm to calculate the correlation dimension d sequence, and then use the embedding dimension m> = 2d+1, select the appropriate embedding dimension.)

在系统的优化控制方法中，鲁棒控制的控制效果较好，鲁棒控制的matlab实现(In system optimization control method, the robust control of the control effect is better, matlab robust control )

双树复小波双变量阈值去噪，自己编写，仅供学习！(Tree complex wavelet bivariate threshold denoising, write your own, only to learn!)

rgmii 接口 硬件开发工程专用千兆接口图(Rgmii gigabit network interface hardware schematic design engineers to develop)

LTE系统中误块率BLER的求解计算，BLER是个衡量系统好坏的正确指标(LTE system for solving block error rate BLER calculation, BLER measurement system is good or bad right index)

应用matlab语言编写，可用于一维信号去噪，去噪效果较好。(Application matlab language, can be used for one-dimensional signal de-noising, de-noising better.)