M_xulie

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

This is mat lab code for adaptive lattice filters.

Example of a Qpsk modulation in simulink(matlab)

MATLAB源代码 MATLAB求解混沌系统微分方程组(The digital image scrambling technology based on affine transformation MATLAB source code )

说明：  step response of control system

说明：  用GARCH模型对时间序列进行预测，包括建模过程，数据处理，阶数确定以及最小二乘估计参数(GARCH models and parameter estimated by LM)

隐马尔科夫模型，matalb实现，比较好的(Hidden Markov Model, matalb achieved relatively good)

用RBF神经网络算法对样本数据进行分类，再对训练数据进行分类的程序(RBF net-work used in classification)

电子工业出版社 《数字信号处理》第2版课后题MATLAB 3-4 3-8 3-14 3-22题(Electronic Industry Press Digital Signal Processing 2nd edition title after title MATLAB 3-4 3-8 3-14 3-22)

image read & write file in matlab