12 小波多种方法去噪和求信噪比

设信号 ，用 对x(t)采样得x(n)，是否会发生频谱混叠？现利用FFT分析其频谱。 1．编程绘制该信号的波形。 2．若令N=16，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 3．令N=1024，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 4．分析2、3的运算结果。 设计调试报告要求： 1．工作原理简述； 2．设计思路； 3．难点及解决方法； 4．设计、调试结果及分析； 5．程序文本及操作步骤。(based signal used to x (t) in the sample x (n), whether there will be a spectrum aliasing? FFT analysis is the use of their spectrum. 1. Programming mapping of the signal waveform. 2. If so N = 16, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 3. Order N = 1024, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 4. Analysis of two, three computational results. Design debugging reporting requirements : 1. Principle outlined; 2. Design; 3. Difficulties and solutions; 4. Design, debugging and analysis of results; 5. Text and operating procedures steps.)

Matlab编写的循环谱计算程序，并对谱参数进行检测和估计，如载频估计，时宽估计，幅度估计等(Matlab computer program written in cyclic spectrum, and spectral parameters for detection and estimation, such as carrier frequency is estimated at wide estimated range estimation)

mathews数值分析书的源代码，用matlab编写，第一章第十一部分。(mathews numerical analysis of the book' s source code, using matlab, the first chapter of Part XI.)

Reamote Sensing application for fusion using wavelet and curvelet transform

Newton-Raphson method is implemented via MATLAB Thrown ball trajectory and projectile study Tire model-Magic Formula of Pacejka is implemented in MATLAB Leibnitz series of pi approximation Amusement ride - corkscrew plot in 3D

基于三叉树的期权定价模型，包括路径依赖型，向下敲出期权等奇异期权(Trinomial tree option pricing model, including path-dependent, and down to knock out the options and exotic options)

有限元PlaneTrussElement的matlab程序(FEA PlaneTrussElement)

说明：  这是华中科技大学提出的用于求解铣削加工动力学稳定性的完全离散法的两自由度程序(This is a two - degree - of - freedom program for solving the dynamic stability of milling)

perl programming for calculating the percentage of the average values.

用递归迭代法构造多小波基的matlab源码及实现多小波分解2-D图像 [multiwavelet.rar] - 小波变换的MATLAB实现 几个用MATLAB编写的小波变换示例 (multiwavelet.rar]2-D multi-wavelet construction and implementation computation multiwavelet transform an image (BAT O2 multiwavelet transform)