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Evaluate frequency spectrum of signals

这是关于扩频的一些基本知识,希望能对大家有帮助.(this is about spreading some basic knowledge, we want to help.)

在优化排样中进行matlab的绘图，输入各边长宽及个数后自动生成图形(pictrue used for stock layout)

matlab源码设计距离测算源码实例matlab source code design examples from the measurement source(matlab source code design examples from the measurement source matlab source code design examples from the measurement source)

梯度下降法的matlab版本实例,带收敛轨迹图。(the steepest descent algorithm with matlab )

Matlab WSNs 质心法代码，密度10*10，间隔10。效果良好(Matlab WSNs mass-force code, the density of 10* 10, 10 interval. Well)

LMS算法的Matlab实现。。。。。。。。。(LMS algorithm Matlab implementation. . . . . . . . .)

说明：  平均周期图法和平滑平均周期图法估计功率谱 从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力进行实验!! 用周期图法和welch法分别估计了一下信号的功率谱密度。采样频率200Hz，时间序列长度2048，FFT数据点数2048。其中welch法使用hanning窗，窗口长度600．(Average periodogram and periodogram smoothing method to estimate the average power spectrum from the classical power spectrum estimation periodogram principle starting from the theoretical analysis of the limitations of its existence, with the Welch algorithm, amending them. Rely on the powerful Matlab numerical analysis and signal processing capabilities to experiment!! With periodogram and welch method were estimated signal power spectral density about. Sampling frequency of 200Hz, the time sequence length 2048, FFT data points 2048. Welch method which uses hanning window, the window length of 600.)

一个matlab程序，程序不大，可以实现播放THU校歌的功能。(A matlab program, the program is not, can achieve the function of the school song played THU.)

train程序能进行语音模板训练，test来用识别，即模板匹配的过程，采用DTW算法，通过反复训练模板能有较高的识别率(run train.m for templats training,and test.m for templates matching by using DTW.)