graymapping

提取PKPM程序中的数据并在matlab实现数据处理(To extract data in PKPM program and data processing in matlab)

Matlab的很多资料，特别适合初学者，是我自己用心整理出来的(Matlab a lot of information, especially for beginners, is sorting out my own heart)

这是一个用MATLAB编写卡尔曼滤波算法的程序(This is a program)

gmrp 二层组播协议， 在电力行业应用广泛，其中设计交换芯片的二层组播表项的操作需对应相应的交换芯片。(GMRP， two layer multicast protocol, widely used in power industry, the design of two layer exchange chip multicast list to the corresponding switching chip corresponding operation.)

利用MATLAB求解的阻尼斜抛运动，希望对大家有帮助。(damp)

Locally-Linear Embedding (LLE)[9] was presented at approximately the same time as Isomap. It has several advantages over Isomap, including faster optimization when implemented to take advantage of sparse matrix algorithms, and better results with many problems. LLE also begins by finding a set of the nearest neighbors of each point. It then computes a set of weights for each point that best describe the point as a linear combination of its neighbors. Finally, it uses an eigenvector-based optimization technique to find the low-dimensional embedding of points, such that each point is still described with the same linear combination of its neighbors. LLE tends to handle non-uniform sample densities poorly because there is no fixed unit to prevent the weights from drifting as various regions differ in sample densities. LLE has no internal model.

在莱斯信道下调制方式为M-QAM的基本通信系统误码率计算公式和仿真(At Rice channel M-QAM modulation scheme is the basic communication system BER formulas and simulation)

Lozi系统的李雅普图形及相应的MATLAB语言程序(Lozi system and procedures of the Lyapunov map)

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

多抽样率信号处理，小波包分析提取振动信号中的特征频率，有均匀线阵的CRB曲线。( Multirate signal processing, Wavelet packet analysis to extract vibration signal characteristic frequency, There ULA CRB curve.)