matlab-tutor

利用elta-jerk模型进行卡尔曼目标跟踪，跟踪效果良好(Elta-jerk model by Kalman target tracking, tracking well)

gabor filter for texture

对一段语音信号进行PCM编码与PCM解码(PCM coding and PCM decoding a voice signal)

选择五个不同频段的信号对其进行频谱分析，根据信号的频谱特征设计五个不同的数字滤波器，将五路信号合成一路信号，分析合成信号的时域和频域特点，然后将合成信号分别通过设计好的五个数字滤波器，分离出原来的五路信号，分析得到的五路信号的时域波形和频谱，与原始信号进行比较，说明频分复用的特点。(To select one of five different band signal spectrum analysis and design of five different digital filter based on the spectral characteristics of the signal, the the Rd signal synthesizing all the way to the signal analysis in time domain and frequency domain characteristics of the synthesized signal, and then the synthesis signal by five digital filter designed, separated original signal Rd, the time-domain waveform and spectrum analysis the Rd signal is obtained, to be compared with the original signal, the frequency division multiplexed with the characteristics.)

这是一个关于HHT变换的matlab源码，把它复制进去matlab就可以直接使用。很实用。(This is a transformation on the HHT matlab source code, copy it into matlab can be used directly.)

说明：  高频滤波 简易教程 效果不错 (Good high frequency filtering effects of simple tutorial)

小波包分析提取振动信号中的特征频率，完整的基于HMM的语音识别系统，通过反复训练模板能有较高的识别率。( Wavelet packet analysis to extract vibration signal characteristic frequency, Complete HMM-based speech recognition system, Through repeated training yQnfuphlate have higher recognition rate.)

利用matlab提取图片中的曲线数据,非常棒，对于写论文很有用(Extracted in the image using matlab curve data, very good, very useful for writing papers)

说明：  伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)

开发系统的程序，欢迎大家使用，希望顶我，方便大家使用雷达线性调频信号产生(system development process, we are happy to use, I hope the top to facilitate the use of radar signals generated LFM)