npcsma

8051单片机广泛应用于键盘 显示器 电冰箱 洗衣机 空调等，本书结合产品的现成实例，对一些重要部分重复说明，希望读者可以更好理解，便于举一反三。

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

编写程序，实现基于ARP协议获取本局域网内全部活动主机MAC地址与IP地址对应关系列表，要求使用Winpcap，手动封装ARP数据包，并实现ARP响应数据包的接收和解析。(programming, ARP-based LAN access to the activities of all MAC address and IP address correspondence list, require the use of Winpcap, manual Packaging ARP packets, and achieve ARP response data packet reception and analysis.)

PSO在约束条件下求解目标函数最优，可用于电力系统机组组合(PSO for optimization objection，can used to calculate the power system unit commitment problem)

在matlab环境中运用hsv空间对空间中的各种参数进行提取，并修改分量(Hsv space to extract the various parameters of space use in the Matlab environment, and modify the component)

mfc 显示位图总结的源码，对于要显示图片有一些帮助(mfc display a summary of the source bitmap, and some help To display the picture)

这是串口调试助手，可以显示，并带有图像显示(This is a serial debugging assistant, you can display, and with image display)

说明：  傻瓜级C语言入门教材，编程帮手！！！！！(Fool-level C language primer, programming help! ! !)

这是一个模式识别中关于主成分分析的特征提取的matlab源码 (This is a pattern recognition principal component analysis on the feature extraction matlab source)

opencv3.0实现的卡尔曼滤波鼠标移动预测(the sourse of kalman)