基于GA优化的BP算法

完整的OFDM-matlab仿真程序，希望能帮助大家(simulink)

Greedy Alg Ofdm Example

本程序为一个实现MIMO-OFDM信道估计的程序，程序中采用的为2*2系统，可以换成其他系统(procedures for the realization of a MIMO-OFDM channel estimation procedures, procedures for the use of 2* 2 system, could be replaced with other systems)

Factor models_matlab code

Remote database access (RDA) is a protocol standard for database access.

为一篇设计报告，篇末附有代码。用MATLAB实现一段音频的混响处理。运用多种滤波器实现混响、延时、加噪音效果。(As a design report, at the end of the article with the code. MATLAB an audio reverb processing. Using a variety of filter achieve reverberation, delay, and the noise effect. )

SOM算法,matlab程序,是经典的教科书的例子程序,不错的源码(SOM algorithm, matlab program, is a classic textbook examples of procedures, good source)

05年美模O奖关于交通流的元胞自动机代码，并有可视化操作代码(it is useful for whoever want to learn cellular automata the programming is excellent for all of you to read and learn.)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

噪声幅度调制信号仿真代码（使用的是高斯白噪声）(Noise amplitude modulation signal simulation code (using a Gaussian white noise))