dongtaiguihua

multipath code for matlab

（1） 分别采集一段浊音和清音语音信号（是你自己说的），采样率为8KHZ，量化精度为16比特线性码； （2） 分析帧长取为30ms（或10ms～50ms）； （3） 根据语音信号倒谱分析和LPC谱分析的编程流程图（图2.1、图2.2）编制浊音语音信号谱分析的matlab程序，上机调试给出相应波形，并根据图形，观察共振峰情况； （4） 将语音信号换为清音语音，运行程序，与浊音语音的运行结果进行比较，并得出结论。 （5） 在LPC谱分析中，改变阶数p （p分别等于4、8、12、40）时，观察对谱包络的影响，并与信号谱（DFT谱）进行比较。 ( voice signal processing)

说明：  masing规则的应用 给出masing规则在非线性分析中的应用例子。( application of the rules of masing)

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)

The following Matlab project contains the source code and Matlab examples used for 16 bits fixed point pid controller . This simulation illustrates the effects of the fixed-point computations on the closed-loop precision for a 16-bits PID controller. The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.

潮流计算程序，收敛性能好，迭代次数相对较少，效率高(load flow calculation)

《电力系统分析》算例在matlab上的实现，使用IEEE33节点配电网牛顿拉夫逊潮流计算程序，程序里有大量注释利于初学者阅读学习。(Matlab implementation example in the Power System Analysis operator, distribution network node using IEEE33 Newton Raphson power flow calculation program, the program has a lot of comments conducive to beginners learning to read.)

基于高阶统计方法改进的自适应多速率话音激活检测算法(Improved statistical methods based on high order adaptive multi-rate voice activity detection algorithm)

说明：  利用matlab强大的数据处理功能和图形化功能来对信号进行处理，这是吴镇扬的数字信号处理第五次实验的全部代码，可用来参考(Using matlab powerful data processing and graphical capabilities of signal processing, which is the fifth digital signal processing Zhen-Yang Wu experiment all of the code can be used to refer to)

PCA与核PCA用于故障检测和故障诊断，对系统有很好的监控能力(PCA and PCA for fault detection of nuclear and fault diagnosis, monitoring of the system has good ability to)