Differential-Equations

cognitive radio for multi path wireless channels design environments with diffrent models

巴特沃斯滤波器，切比雪夫滤波器，椭圆滤波器设计及比较，同样的设计参数指标，在同一张图中比较三种滤波器的幅频响应波形，并用统计图画出各滤波器所需阶数。(Butterworth filter, Chebyshev filter, elliptic filter design, the same design parameter index, with a figure in the comparison of three filter frequency response waveform, and use statistical picture of the desired order of each filter.)

图像的FFT变换和DCT变换的MATLAB代码(Image FFT transform and DCT-MATLAB code)

1利用3阶和四阶B 样条函数构造正交小波的方法；用matlab实现构造正交小波的数值实现。 (1 using 3-order and fourth-order B-spline function to construct orthogonal wavelet method achieved by constructing the orthogonal wavelet matlab numerical implementation.)

说明：  传统的脉搏血氧R值提取大多采用脉搏波的峰谷值法.一个脉搏周期的峰谷值往往不能反映真实的R值，因此通常采用多个周期峰谷值的平均来提高R值的精度。提供了移动平均算法进行脉搏血氧信号特征值提取源码。(Traditional pulse oximetry R value extraction most of the peak value of the pulse wave method. A peak value of pulse cycles often do not reflect the true R value, usually more than one cycle, the average of the peak value to improve the accuracy of the R value. Moving average algorithm to extract the source pulse oximeter signal eigenvalue.)

用matlab对对象进行了模糊PID的编程。(The fuzzy PID programming on object using matlab and VC language. )

Image evaluation (mean, clarity, information entropy, standard deviation)

卷积码编码器，对二进制向量进行编码，希望对大家有帮助(Convolutional code encoder, to encode binary vector, in the hope that everyone has to help)

determines the output sequence of a binary convolutional encoder

FIR 底通和带通滤波器和IIR 底通和带通滤波器，计算十字叉丝的在不同距离的衍射图像,采用累计贡献率的方法。( Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Calculation crosshairs diffraction image at different distances, The method of cumulative contribution rat.)