constellation

《MATLAB7.x数字信号处理》的配套光盘，提供给初学者或者需要的朋友。(" MATLAB7.x digital signal processing," CD-ROM package, available to the beginner or need a friend.)

this is the matlab code for dip lab programs

说明：  现代通信系统(MATLAB版)(第二版)代码(Modern communication systems (MATLAB version) (Second Edition) code)

求解微分方程（这里指的是常微分方程）指含有一次、二次、乃至高次微分未知数的方程。是解决偏微分方程、数理方程的基础。有许多特殊函数，都是为了无法得出多项函数或超越函数型式的解析解的微分方程而定义出来。这些特殊函数之所以重要，是因为它们描述了自然界中的某些现象，例如，电子的活动、鼓皮的振动、钟摆的摆动等等。(Solve differential equations (in this case is the ordinary differential equation) means containing one, two, and even high-differential equations unknowns. Is to solve the partial differential equations, mathematical equations based. There are many special functions, are not drawn to a number of functions or functions beyond the type of analytical solution of differential equations which define them. These special functions are important because they describe the nature of certain phenomena, for example, electronic activities, drum skin vibrations, pendulum swing, and so on. )

voice recognition with neural networks backpropagation. this source can recognize number one two three four five six seven eight nine

一种基于Hough变换的航迹起始方法。给出了点迹雷达的结果，同时给出了所有量测结果的状态图。(A track initiation method based on Hough transform. There is some radar to track results, and given all the measurements of the state diagram.)

Compute the matrix of mel filter coefficients given the sampling frequency, the length of the FFT and the number of desired mel filter channels.

计算了基模高斯波束的电场，相位，该代码可用来计算光学中高斯波束的相关系数(Fundamental mode Gaussian beam calculated the electric field, phase, the optical code can be used to calculate the correlation coefficient in the Gaussian beam)

多变量的优化问题的遗传算法，该算法具有通用性只需改变变量的区间和适应度函数即可。(multi-parameter optimization. you can change the areas of the parameters and the fitness function)

Gerald Teschl s matlab files for german book: "Mathematik für Informatiker 2: Analysis und Statistik" ISBN "9783540724513"