simu_BPSK

这个程序实现了ofdm下的注水原理，是一个基于速率的注水程序，并不是传统的基于功率的注水原理。(This program realise a program based on waterfilling method which is concerning the rate adaptation not the power adaptation.)

该程序可实现图像四方向频谱划分，通过该程序，衣服图像四方向的信息会很好的展现出来。(This program can be divided into the spectrum of image four directions, through the program, four-direction image information clothes would show up well.)

说明：  matlab设计基础极其常见问题和解决方案，非常有用(matlab basic design problems and solutions is extremely common, very useful)

对信号进行Wigner-Ville分布分析的matlab函数(The matlab function of Wigner-Ville distribution analysis.)

解决离散傅里叶变换的能量泄露问题，使得傅里叶变换的结果更加的准确。(Solving the Energy Leakage Problem of Discrete Fourier Transform)

时频分析工具，经典工具箱，包括短时傅里叶变换等实用函数 (Time-frequency analysis tools, classic toolbox, including the short time Fourier transform and other utility functions)

十几个数字信号处理实验课的程序，基本上是书上的习题。对初学着很有帮助啊！(dozen digital signal processing procedures experiment is basically on the Exercise. Helpful to a novice with ah!)

有限时域差分算法计算Mie散射有限时域差分算法计算Mie散射(Finite-difference time-domain algorithm to calculate the Mie scattering)

Advanced correlation filter synthesis algorithms to achieve rotation invariance are described. We use a specified form for the filter as the rotation invariance constraint and derive a general closed-form solution for a multiclass rotation-invariant filter that can recognize a number of different objects. By requiring the filter to minimize the average correlation plane energy, we produce a multiclass rotation invariant (RI) RI-MACE filter, which controls correlation plane sidelobes and improves discrimination against false targets. To improve noise performance, we require the filter to minimize a weighted sum of correlation plane signal and noise energy. Initial test results of all filters are provided

Character recognition system with matlab and ann