PID_8

说明：  vitebi算法的程序， 用C语言实现。(vitebi algorithm procedures using C language.)

Butter 函数的应用于低通滤波器，对应的仿真图形与代码(Butter function applied to low-pass filter corresponding to the simulation graphics and code)

这是一个好用的频偏估计算法的matlab仿真程序,基于多相结构的信道化接收机，窗函数法设计一个数字带通FIR滤波器。( This is a useful frequency estimation algorithm matlab simulation program, Channelized receiver based on multi-phase structure, A window function design FIR digital band-pass filter.)

光放大器仿真能够计算出放大的信号功率以及噪声功率(optical amplifier)

主要是硕士期间要用到的基本的统计的matlab数据处理命令的介绍(Mainly during use to master the basic statistical data processing matlab command description)

这个程序可以实现牛顿环(Newton s rings)的演示, 其中可调参数包括波长, 透镜曲率半径及最低点空气缝隙的厚度.参数的调节是通过欢快实现的,其中颜色 随波长近似的变化. 本程序可以增进读者对牛顿环的理解.(this procedure can be achieved Newton Central (Newton's rings) demonstration. with adjustable parameters including wavelength, lens curvature radius and minimum thickness of the air gap. Parameter adjustment is achieved through the jubilant, With these color changes in the wavelength approximation. The procedure can improve readers to understand the Newton ring.)

LDPC 基于似然函数的译码算法函数，采用MATLAB编写，可以直接调用(LDPC decoding algorithm based on similar function the likelihood function, using MATLAB to prepare, you can directly call)

matlab统计基因序列多序列比对中各个多态性位点中碱基个数(matlab statistics sequence for multiple sequence alignment of various polymorphisms in the number of base)

这些程序是奥本海姆版数字信号处理书中全部常用的函数，非常方便大家使用。(These procedures are the Oppenheim book all commonly used digital signal processing function, and very easy to use. )

projet 4 is very importand