Chapter-9-Data-Analysis

上传的主要是一些用MATLAB做语音处理和神经网络的的源代码 适合初学者用(Upload mainly speech processing and neural network using MATLAB source code suitable for beginners)

用于PH分布参数估计，MAP参数估计的一些基本函数。(Distribution parameter estimation for PH, MAP parameter estimates some basic functions.)

说明：  通信原理的系统仿真系列--code&decode for QDPSK。供刚接触到matlab的朋友参考。(communications system simulation series-- code)

孤立词语音识别系统的技术研究,有关孤立词识别的基础和识别的技术研究(Isolated word speech recognition system technology, based on isolated word recognition and identification technology)

由于卫星与用户接收机二者的连线方向上存在相对运动，因此引起了载波和伪码的多普勒效应，再加上接收机晶体震荡频率漂移和卫星时钟频漂等原因。接收机实际接收到的卫星载波中心频率一般不再等于信号被发射时的标称频率，这就需要接收机在载波频率一维对信号进行搜索。同时，由于卫星到接收机的距离时刻变化，加上接收机始终相对于GPS时间的偏差又并不固定，因而接收信号的伪码相位值也在改变，所以接收机也要在码相位一维对信号进行搜索。扩频信号的捕获是一个对目标信号频率域和相位域进行的二维搜索过程。(Because of the relative motion between the two of the satellite and the user receiver, the Doppler effect of the carrier and pseudo-code is caused, and the frequency drift of the oscillation of the receiver crystal and the frequency drift of the satellite clock are added. The frequency of the satellite carrier center that the receiver actually receives is generally no longer equal to the nominal frequency of the signal being transmitted, which requires the receiver to search the signal in one dimension of the carrier frequency. At the same time, because the distance between the satellite to the receiver is changed, the deviation of the receiver always relative to the GPS time is not fixed, so the pseudo code phase value of the received signal is also changing, so the receiver also searches for the signal in the code phase. The acquisition of spread spectrum signal is a two-dimensional search process for the frequency domain and phase domain of the target signal)

T-S模糊神经网络的matalb程序,可以用做端点检测(TS fuzzy neural network matalb procedure can be used for endpoint detection)

功能：该程序用于仿真截断正态概率下舰艇机动加速度均值与方差的关系，输入：舰艇的最大机动加速度，输出：两幅加速度均值与方差的关系图。(Features: The program for the simulation of truncated normal probability of ship maneuvering the relationship between the mean and variance, type: motor ships of the largest acceleration, output: 2 acceleration mean and variance diagram.)

仅供学习中的朋友进行matlab实验指导书的教学实验源代码(Learning for friends matlab experiment experimental teaching guide book source code)

说明：  处理红外光谱，高光谱，拉曼光谱，包括预处理和pls处理(Infrared spectrum, hyperspectral spectrum and Raman spectrum were processed, including pretreatment and pls processing)

扩频通信系统，包括直接序列扩频，PN序列产生，以及调频扩频(Spread spectrum communication system, including direct sequence spread spectrum, PN sequence generation, as well as spread spectrum frequency modulation)