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matlab 数据拟合工具箱模拟大气二氧化碳含量(ATMOSPHERIC CARBON DIOXIDE MODELING AND THE CURVE FITTING TOOLBOX)

以软件为主的方法实现QRS波的检测滤波之后的信号一般经过一些 变换以提高QRS波的份量，进而采用一系列阈值进行判别，这些阈值有固定 阈值法，也有可变阈值法。前者由于可能的干扰或高P、高T波的存在，若 其滤波后超过其阈值便会产生假阳性(FP，falsepositive)结果；另外，当心 律失常或QRS波幅度变小，阈值设置过高，会导致漏检产生假阴性(FN， falsenegative)结果。由于固定阈值的这些缺点，有研究者提出了用可变阈 值检测，以提高检测的精确率，所采用的可变阈值包括幅度阈值、斜率阈值 和时间间隔阈值等。(Give priority to with software method for detecting QRS wave signal after some commonly after filtering Amount of transformation in order to improve the QRS wave, then using a series of threshold to distinguish, the threshold value is fixed Threshold value method and variable threshold value method. The former due to the possible interference or the existence of the high P and T waves, if More than the threshold value is created after the filtering false positives (FP, falsepositive results In addition, be careful Law of disorder or QRS wave amplitude decreases, threshold is set too high, can lead to leak to produce false negatives (FN, Falsenegative) results. Due to these disadvantages of fixed threshold, some researchers have proposed using variable threshold Value detection, in order to improve the precision of detection rate, adopted by the variable threshold including amplitude threshold, the slope threshold And the time interval threshold, etc.)

用matalab编制的绘制海流矢量图的程序，压缩包内有几个示例数据(Vector drawing program with currents matalab prepared, there are several examples in the package data compression)

检验实际分布是否与理论密度分布函数相符合。球面均匀分布的随机点在二维平面上的投影的密度分布(Verify whether the actual distribution consistent with the theoretical density distribution function. Spherical uniformly distributed random dot density distribution projected on a two-dimensional plane)

matlab应用于数学认真阅读然后直到其具体功能(applied mathematics matlab read until its specific function and then)

基于混沌映射的密码生成算法，给定任意一个初值作为密钥，可以产生任意长度的密码，保密性高(password generator based on chaotic map)

对数谱 语谱图和倒谱代码 适用于语音识别 说话人识别 自己编写 亲测可以运行(Logarithmic spectrum and spectrogram cepstrum code for voice recognition speech recognition to write your own pro-test can be run)

用matlab实现的一个最小二乘法的简单例子(Using matlab to achieve a simple example of least squares)

由matlab仿真的,超宽带信号中矩形波的产生(Rectangular wave generated)

Genrate traffic accourding to defined distribution based on ON-OFF model