Capacity_8PSK

水印的提取算法和加入算法互为逆过程，即为分段---FFT变换---提取水印---水印信息升维处理(The watermark extraction algorithm and the reverse process of each other to join algorithm, namely transform section--- FFT------ watermarking watermark l-dimensional processing)

I wrote this program for coloring any map with only 4 colors. Input for it is an bitmap file with 24 bit colors (must gray/scale). Output is a bitmap which is colored with maximum 4 colors.

this is IMM tech. in tracking targets

matlab模拟buffon投针并求pi值(matlab simulation buffon needle cast and find the value of pi)

灰色预测方法的特点表现在：首先是它把离散数据视为连续变量在其变化过程中所取的离散值，从而可利用微分方程式处理数据；而不直接使用原始数据而是由它产生累加生成数，对生成数列使用微分方程模型。这样，可以抵消大部分随机误差，显示出规律性。(The characteristics of the grey prediction method are as follows: First, it regards the discrete data as the discrete value of the continuous variable in its change process, so that the differential equation can be used to process the data; instead of using the original data directly, it generates the cumulative generation. Number, using a differential equation model for generating a series. In this way, most of the random errors can be offset, showing regularity.)

细菌群趋药性算法（二维），里面内嵌了一个示例目标函数，多维的更完善程序将在近期更新(Bacterial colony chemotaxis algorithm (D), embedded inside a sample objective function。 Multi-dimensional, more comprehensive program will update in the near future)

压缩包内源码的主要用途是：FSK调试方式的matlab实现(The main purpose of this source is the matlab implementation of FSK debug mode )

Toeplitz 修正处理的music算法。可以提高低信噪比和低采样率下的分辨率。(Toeplitz correction algorithm processing of music. Can improve the signal to noise ratio and low resolution low sampling rates.)

小波包分析提取振动信号中的特征频率，利用自然梯度算法，有详细的注释。( Wavelet packet analysis to extract vibration signal characteristic frequency, Use of natural gradient algorithm, There are detailed notes.)

说明：  基于粒子群算法求解低速车辆模型的非线性模型预测控制问题(The nonlinear model predictive control problem of low-speed vehicle is solved based on particle swarm optimization (pso))