cthd39-40

his is a simple method for silence removal and segmentation of audio streams that contain speech. The method is based in two simple audio features (signal energy and spectral centroid). As long as the feature sequences are extracted, as thresholding approach is applied on those sequence, in order to detect the speech segment

经典的knn最近邻算法 利用matlab的内部JIT加速算法，简单好用，高速时效。(Classic knn nearest neighbor algorithm using matlab internal JIT accelerated algorithm, easy to use, high-speed aging.)

一种基于多文档得图像合并技术，关于小波的matlab复合分析，语音信号的采集与处理，数字信号处理课设。( Based on multi-document image obtained combining technique, Matlab wavelet analysis on complex, Acquisition and Processing of the speech signal, digital signal processing class-based.)

卡尔曼滤波器,自适应方面的东西,用于滤波方面的(Kalman filter, the adaptive things for the filter)

实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。 (The DCT of image high-pass, low pass filter and compared with the Fourier transform.)

m序列的matlab实现，m序列的matlab实现(Implementation of m sequences)

频谱分配经典算法，基于比例公平，注水算法优化(Classical spectrum allocation algorithm based on proportional fairness, water algorithm optimization)

foptions.m, filtering for matlab

说明：  用matlab实现FIR低通滤波器的设计(Using matlab to achieve the design of FIR low-pass filter)

The constant reverse voltage of the zener diode makes it a valuable component for the regulation of the output voltage against both variations in the input voltage from an unregulated power supply or variations in the load resistance. The current through the zener will change to keep the voltage at within the limits of the threshold of zener action and the maximum power it can dissipate.