pca

首先从n个数据对象任意选择 k 个对象作为初始聚类中心；而对于所剩下其它对象，则根据它们与这些聚类中心的相似度（距离），分别将它们分配给与其最相似的（聚类中心所代表的）聚类；然后再计算每个所获新聚类的聚类中心（该聚类中所有对象的均值）；不断重复这一过程直到标准测度函数开始收敛为止。一般都采用均方差作为标准测度函数. k个聚类具有以下特点：各聚类本身尽可能的紧凑，而各聚类之间尽可能的分开。(First, a data object from the n choose k objects as initial cluster centers and for the rest of the other objects, according to their similarity with the cluster center (distance), respectively, assign them to their most similar (represented by cluster center) clustering then calculated for each cluster center received a new clustering (all objects in the cluster mean) repeats this process until the convergence criteria begin until the measure function. Standard deviation is generally used as a standard measure function. K a cluster has the following characteristics: the cluster itself as a compact, but separated as much as possible between each cluster.)

说明：  使用matlab画的smith圆图，但是没有动态的显示。(Smith painting using matlab circle diagram, but no dynamic display.)

Quantum Genetic algorithm

关于CAP调制技术的数字信号处理，包括同步、信道估计、相位估计(carrier less amplitude modulation)

中继增强的LTE-A蜂窝网络中路由方案的优化.pdf(Optimization .pdf relay enhanced LTE-A cellular network routing scheme.PDF)

本书介绍了matlab在控制系统中的使用，涉及matlab的基本操作及系统的频谱分析、状态空间分析等内容(This book describes the matlab use in the control system, the content spectrum analysis involves matlab basic operations and systems, state space analysis, etc.)

Investigation of the relation between amount of VoIP speech data and performance in speaker identification task over VoIP Networks

说明：  利用Matlab及Simulink建立仿真系统，对PCM量化信噪比进行仿真测试，要求对输入的正弦波进行采样、量化和PCM编码，计算并画出量化信噪比曲线，比较量化信噪比理论值与实际值。(Using MATLAB and Simulink to set up simulation system to simulate and test the quantized signal-to-noise ratio of PCM, it is required to sample, quantize and PCM code the input sine wave, calculate and draw the quantized signal-to-noise ratio curve, and compare the theoretical value and the actual value of the quantized signal-to-noise ratio.)

bp神经网路在地震预测中的应用，分别采用gd、gdx、lm训练方法，供大家参考~(bp neural network in the earthquake prediction, respectively, using gd, gdx, lm training methods for your reference ~)

说明：  LDPC码的BP算法译码MATLAB程序(LDPC decoding algorithm BP MATLAB)