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Genetic algorithm for optimization

MATLAB程序，用以实现2FSK数字信号的产生(MATLAB program to achieve generation of 2FSK digital signal)

遗传算法和模拟算法的结合通用程序，提高了问题解决的效率，和结果的精度需求(Genetic algorithms and simulated algorithm combined with the general program to improve the efficiency of problem-solving, and the results of the accuracy of demand)

Moving Target Parameters Estimation in Noncoherent MIMO Radar Systems Aboulnasr Hassanien, Member, IEEE, Sergiy A. Vorobyov, Senior Member, IEEE,and Alex B. Gershman, Fellow, IEEE IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 60, NO. 5, MAY 2012

噪声调相干扰信号的matlab仿真实现，其中包含成像的提取程序(sar jamming signal of noise moding phase)

利用abaqus分析不同铺层的复合材料层合板的圆孔应力集中问题。(Using ABAQUS to analyze the stress concentration problem of circular hole in composite laminates with different ply.)

星座图的画法 matlab 两种画法 仅供学习(constellation diagram )

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.)

Numerical method e book

记录我针对数字通信（John.G Proakis）版本学习中编写的仿真程序。 和大家交流共同学习，其中的错误，希望大家指证！ (I look at digital communications records (John.G Proakis) version of the study prepared by simulation program. And to facilitate the exchange of learning, in which the error, hope that means the card!)