PCM

可变次数的 曲线拟合 最小二乘算法实现 (Variable number of least squares curve fitting algorithm)

利用神经网络工具箱，实现数据拟合，预测控制(Using neural network toolbox, data fitting, predictive control)

这是本人精心做的,真的做的不好,我也是费了好大的心力来研究这个工作,也是我第一次来做关于matlab的源程序(this is carefully done, I really do not, and I also spent a lot of effort to study the work, is the first time I have to do on the source Matlab)

TI的FFT协处理器对应的源代码和matlab代码(Source code and matlab code corresponding to the FFT coprocessor of TI )

二维声波正演程序！规则网格的时间空间二阶波动方程有限差分正演，matlab编写！！(Two-dimensional wave medling program! matlab prepared! ! Forward seismic acoustic source)

计算图形分形维数，能处理所有格式的图片，简单实用！(Calculation of the fractal dimension graph)

Refractive index matlab code for ec engineer

数字基带系统将数字信号从时域上看时数字滚降，需要画出滚降前后的波形展示出来。频域上带宽变化了。输入滤波器之前的波形与采样判决之后的波形。采样判决前的频谱。 采样判决后的码型。 2、眼图（采样判决之前的眼图）（信噪比大眼图清晰） 3、误码曲线，（横坐标时信噪比，纵坐标时误码率） 4、Arfa变化对误码特性的影响，变好还是变差(变好)，眼图清晰度变化（清晰），传递函数的带宽的变化。（带宽越大）(1.Digital baseband system point of view the digital signal from the time domain when the number of roll-off, you need to draw the waveform displayed before and after the roll-out. The frequency domain, the bandwidth change. Input filter and sample ruling before the wave after wave. Sample pre-judgment spectrum. Sampling pattern after the verdict. 2, the eye diagram (eye before sampling decision) (SNR big eye clear) 3, the error curve (abscissa when the signal to noise ratio, bit error rate when the vertical axis) 4, Arfa impact of change on BER performance, get better or worse (getting better), change of eye-definition (clarity), the transfer function of the bandwidth changes. (The greater the bandwidth))

性指标的价值函数达到最小。FCM与HCM的主要区别在于FCM用模糊划分，使得每个给定数据点用值在0，1间的隶属度来确定其属于各个组的程度。与(indicators of the value of minimizing function. HCM FCM with the main difference is fuzzy FCM, broken down to make each set of data points with the value 0, one of the membership to determine its belong to the group level. And)

相关系数法计算两个向量的相关系数 MATLAB代码(Correlation coefficient method to calculate the correlation coefficient of two vectors MATLAB code)