ch4

书籍频综和锁相环的Matlab源代码，对频综和锁相环的设计很有帮助；(Books PLL Frequency Synthesizer and the Matlab source code for PLL Frequency Synthesizer Design and helpful )

k-means 算法接受输入量 k ；然后将n个数据对象划分为 k个聚类以便使得所获得的聚类满足：同一聚类中的对象相似度较高；而不同聚类中的对象相似度较小。聚类相似度是利用各聚类中对象的均值所获得一个“中心对象”（引力中心）来进行计算的。(k-means algorithm accepts input k then n data objects into k clusters in order to make clustering satisfy obtained: the objects in the same cluster high similarity different clustering object similarity small. Cluster similarity is the use of the mean of each cluster of objects that get a " central object" (center of gravity) to perform the calculation.)

Butterworth Bandpass Filter

雷达成像技术，西安电子科技大学，保真出的，里面包含了雷达成像的经典算法。(Study of Radar Imaging Algorithms)

说明：  matlab均值平滑滤波器（3*3模板）(matlab mean smoothing filter (3* 3 templates))

Aloha implementation in matlab

Matlab script files for plotting seismic data. You have to provide your own data, these are just functions.

说明：  二阶锁相环 matlab实现 QPSK BPSK(Implementation of QPSK BPSK with second-order PLL matlab)

Its a useful book for aptitude and also technical aptitude.

this M-file is a rgb2hsi transformer