matlan3223

LPA是主成分分析算法，用于特征提取和特征空间的降维(LPA code for feature)

相关向量机(RVM)的matlab源程序，包含快速算法，内含代码使用说明。 RVM采取是与支持向量机相同的函数形式稀疏概率模型，对未知函数进行预测或分类。 优点： (1) 不仅仅输出预测目标量的点估计值,还可以输出预测值的分布. (2) 使用更少数量的支持向量,从而显著减少输出目标量预测值的计算时间. (3) RVM不需要估计过多的参数. (4) RVM对是否满足Mercer 定理的核函数没有限制,适应性更好(Relevance Vector Machine (RVM) of the matlab source code, including fast algorithm that contains code for use. RVM support vector machine is taken the same functional form sparse probabilistic model to predict the unknown function or classification. Advantages: (1) is not only the amount of output predicted target point estimates, but also the distribution of predicted values ​ ​ can be output. (2) using a smaller number of support vectors, thereby significantly reducing the output target amount predicted value calculation time. (3) RVM does not require excessive parameter estimation. (4) RVM meets Mercer theorem on the kernel function is not limited, and better adaptability)

chord recognition ，major chord,minor chord and transporition of text document.

数字频带通信系统 输入：首先输入模拟信号，给出此模拟信号的时域波形。 数字化：将模拟信号进行数字化，得到数字信号，可以选择PCM编码。 调制：可以选择简单的二进制数字调制方式。例如振幅键控(2ASK)、相移监控（2PSK）、频移键控（2FSK）、差分相移键控（DPSK）等。要求每个题目至少选择两种调制方式。有能力的同学也可以选择其它高效的调制方式?例如多进制数字振幅键控等?给出调制后信号的时域波形。 信道：假定信道属于加性高斯信道?或自行设计。 解调：相应的2ASK、2PSK、2FSK、DPSK解调，仿真获得解调输出波形。 PCM解码：给出解码后的模拟信号的时域波形，并与输入信号进行比较。 系统性能分析：比较在不同调制方式下，该数字频带传输系统的性能指标，即该系统的输出误码率随输入信噪比的变化曲线。(Digital frequency band communication system)

说明：  台湾大学林智仁开发的libsvm的matlab最新版，可以实现分类、回归、预测的功能(Lin Zhiren Taiwan University developed the matlab libsvm latest version can be achieved classification, regression, prediction of functional)

In this work, the Mel frequency Cepstrum Coefficient (MFCC) feature has been used for designing a text dependent speaker identification system. The extracted speech features (MFCC’s) of a speaker are quantized to a number of centroids using vector quantization algorithm. These centroids constitute the codebook of that speaker. MFCC’s are calculated in training phase and again in testing phase. Speakers uttered same words once in a training session and once in a testing session later. The Euclidean distance between the MFCC’s of each speaker in training phase to the centroids of individual speaker in testing phase is measured and the speaker is identified according to the minimum Euclidean distance. The code is developed in the MATLAB environment and performs the identification satisfactorily.

基于小波域的语音增强（去噪）技术，该程序中有本人的详细注释，保证初学者可以看懂。(Wavelet domain speech enhancement (denoising) technology, the program has own detailed notes to ensure that beginners can understand based.)

基于马尔科夫链概念，3状态概率转移矩的matlab实现(Based on the concept of Markov chain, the realization of the 3 stats matrix s transfer probability matrix in matlab)

This is System identification toolbox user guide. enjoy it )

ieee5节点牛顿拉夫逊法潮流计算程序 使用电力系统标准模型(load flow matlab)