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this code is about hough transform

The above file will give internal boundary, external boundary, morphological gradient, also thining and thickening of image.

产生随机序列，进行调制，然后过信道，进行解调，绘星座图，仿真误码率(Generating a random sequence, modulated, and then through the channel, demodulates, painted constellation, simulation BER)

本实验语音库为免费的柏林情感语音库，其采样频率为16KHZ，16bit量化。该语音库共有500 句情感语音信号，分别由十名专业演员(5 男，5 女)在不同情感状态下（高兴、愤怒、平静、悲伤、害怕、厌烦、憎恨）朗读十句不同文本的德语组成。本实验选取其中的部分情感（高兴、愤怒、悲伤）加以识别。仿真实验环境为MATLAB7.0。 实验选取的情感特征为短时平均能量、短时平均幅度、基频和短时过零率。为了降低不同人在表达不同情感时的个人差异造成的影响，本文实验过程中将提取的情感特征进行归一化处理。归一化采取将同一个人的三种情感语音信号的情感特征放在一起归一化处理，并将归一化后的情感特征作为KNN分类器的训练样本和测试样本。 该实验使用了传统的KNN算法和改进算法两种识别方式，通过实验结果对比了各自的特点。 (This experiment YuYinKu for free Berlin YuYinKu emotion, the sampling frequency for 16 KHZ, 16 bit quantification. The YuYinKu 500 words of emotional speech signal, respectively by ten professional actors (5 male, five female) in different emotional state (happy, anger, sadness, fear, calm, bored, hate) read ten sentences in different text of the German. This experiment selection of part of the emotions (joy, anger, sadness) is recognized. The simulation experiment environment for MATLAB7.0. The selection of emotional characteristics for short-term average energy, short-term average amplitude, frequency, and the short zero rate. In order to reduce the different people in different emotional expression of the impact of individual differences, the experiment process will extract emotional characteristics is normalized. The normalized will take the same three kind of emotional speech signal emotional features normalized put together, and after the normalized the emotional characteristics)

说明：  均匀线阵常规波束形成仿真 假设条件 窄带(单频)； 远场平面波(目标距离远大于阵长)； 无多途干扰； 信号无多普勒，无畸变。(Simulation of conventional beamforming of uniform linear array)

matlab的电子教程，帮助大家学习matlab(matlab electronic tutorials to help everyone learn matlab)

IRR数字高通滤波器matlab程序代码(IRR digital high pass filter matlab code)

PCA的原代码，绝对好使，大家用了就知道~~~希望对大家有帮助(the original code, absolutely so, we have spent know ~ ~ ~ hope to be helpful)

局部频谱细化算法的实时效率 比较zoom-fft各种算法(Local spectrum thinning algorithm more efficient, real-time zoom-fft algorithms)

a Matlab toolbox for parametric identification of fluid-memory models associated with the radiation forces ships and offshore structures.