空间色彩比较DWT-SVD的水印

说明：  时域有限差分法，计算一维的光子晶体能量的变化(FDTD method to calculate one-dimensional photonic crystal energy changes)

说明：  编写改进的差分进化算法，并对神经网络进行优化(improved differential evolution algorithm to optimization the neural network )

各种资源分配算法实现，详细画出了时域和频域的相关图，感应双馈发电机系统的仿真，本程序的性能已经达到较高水平，旋转机械二维全息谱计算，通过虚拟阵元进行DOA估计。

s-function,支持c/c++/m文件等语言，交互性强(s-function)

MATLAB的源程序,包括产生随机传输数据data的子程序,eject_seq发射序列子程序,BPSK调制序列产生子程序,产生pn1序列的子程序,利用积分法实现BPSK解调,均衡pn1序列的子程序.(MATLAB source, including random data transmission of data subroutine, eject_seq launch sequence subroutine, BPSK modulation sequence generated subroutine, have Promoters sequence subroutine, use integral method to achieve BPSK demodulation, balanced Promoters sequence subroutine.)

提取teager能量算子和其解调信号，能够增强和突出冲击信号(Extracting Teager energy operator and its demodulation signal can enhance and highlight the impact signal)

本代码是《通信信号处理》课程的大作业相应的代码。主要是通信信号发射端的仿真，具体功能是：1. 产生任意长度的伪随机序列，将序列映射为I,Q两路的信号，2.均方根升余弦滤波器成型. 3.经过通带衰减为3dB的倾斜滤波器（模拟信道衰落效果）4.插零，半带滤波器升抽样。 5.NCO处理单元调制(This code is communication signal processing courses corresponding to the large code. Mainly is the simulation of the communication signal transmitter, the specific functions are: 1. Produce arbitrary length of the pseudo-random sequence, the sequence mapping for the I, Q two-way signal, 2. Raise the root-mean-square filter forming 3. After passband attenuation 3dB tilt filter (analog channel fading effect) 4. Insert zero, half-band filter l sampling. 5. NCO processing unit modulation)

这是一种求解微分方程的高精度数值方法，对解决很多非线性问题有很大优势，由钟万勰院士首创(This is a high-precision numerical solution of differential equation methods, to solve many nonlinear problems has great advantages, from the first academician Zhong Wanxie)

This is some kind of graph program for pattern classification, namely HP (Hyper box).

使用matlab实现包络检波，调制解调。很好的画出包络信号。(Use matlab realize envelope detector, modulation and demodulation. Good draw envelope signal.)