fft

也试着把《MATLAB在振动信号处理中的应用》中的ZFFT改为函数，方便其它坛友的调用，并提供调试程序和数据(Also tried to " MATLAB in Vibration Signal Processing" ZFFT change in function to facilitate the other Friends of the altar call, and debug programs and data)

用于实现支持向量机的核函数，常用的四种，多项式，线性，高斯(Used to implement SVM kernel function, four common)

台阶的磁异常正演绘图程序 可选择不同的角度(The forward step of the magnetic anomalies can choose a different perspective drawing program)

making jacobian matrix power system

插值与拟合试验，matlab，希望对大家有用(Interpolation and fitting test, matlab)

about using matlab for solving Knapsack Problem

说明：  数值分析newton算法的matlab实现(Numerical analysis matlab newton algorithm implementation)

Matlab code for for Fourier Transform

基于DCT的数字水印源码，描述DCT的变换、水印的嵌入过程。(Digital Watermarking Based on DCT source, described in the DCT transform, the watermark embedding process.)

1 设计一个ＦＩＲ数字低通滤波器， 满足一组模拟滤波器的指标参数；分别采用三角窗、hamming窗、blackman窗和kaiser窗进行设计。比较不同窗的设计效果。要求描绘滤波器的脉冲响应、窗函数以及滤波器的幅频和相频响应曲线。 2. 用上述设计滤波器完成几组给定信号的滤波。 3.设计数字高通、带通、带阻滤波器，要求描绘滤波器的脉冲响应以及滤波器的幅频和相频响应曲线。 (1、A design of a FIR digital low-pass filter, analog filters to meet the target of a group of parameters were used triangular window, hamming window, blackman windows and kaiser window design. Window to compare different design effect. Requirements described impulse response filter, window function and the filter amplitude-frequency and phase frequency response curve. 2. Using the above filter was designed to complete several sets of a given signal filtering. 3. Design of digital high-pass, band pass, band-reject filter, the filter impulse response described demand as well as the filter amplitude-frequency and phase frequency response curve.)