calculNumeric

this is some codes in systems

说明：  本人用matlab编写的支持向量机的程序，在数据集iris上进行实验，识别效果不错(I have written in with support vector machine matlab program, in experiments on the iris data set, identify good results )

Date time picker in matlab

惯导工具箱，惯导仿真的重要工具，适用于惯导算法仿真。(INS Toolbox, an important tool for inertial navigation simulation.)

提供一个仅通过平面上的三点画出一个圆形的小程序，仅供大家探讨(draw a circle with 3 points)

mohasebate addadi,determain,...

响应面法matlaB程序，大家可以下载。(RMS code)

实现单稳触发功能，扩展输入信号为指定时常(a implement of mono，expand the input signal to a given time)

自相关虽然能够判断清/浊音，并估计浊音的基音周期，但是其运算量很大，用乘法运算所需时间较长。为了避免乘法，采用短时平均幅度差函数（AMDF），验证AMDF与自相关有类似的作用，即平均幅度差函数能够代替自相关函数进行语音分析。(Although autocorrelation can differ from the Voiced/Unvoiced and voiced the pitch period estimate, but the operation is large enough, with the multiplication time was needed. In order to avoid the multiplication using the short time average magnitude difference function (AMDF), verify the AMDF and autocorrelation have a similar effect, that the average magnitude difference function can replace the voice of the autocorrelation function.)

本文通过matlab分析信号在不同采样频率和变换点数的FFT下的频谱图，研究采样频率和变换点数对信号FFT的影响。同时还讨论了信号在不同频带噪声背景下的采样频率和变换点数的选择。(In this paper, matlab sampling frequency of the signal at different points in the FFT and transform under the frequency spectrum, change the sampling frequency and FFT of the signal points. Also discussed the noise signal in the context of different frequency bands and transform points sampling frequency selection.)