GRNN

The matlab source code about SIFT algorithm with Accurate Key locations.

angular radial reconnaissance image

平凹腔激光模式计算程序，利用边界元方法计算，matlab编程！(concave cavity laser mode procedures, the use of the boundary element method, the Matlab programming!)

短时傅里叶变换可以用差分模式来实现，对书上的运算式做了稍许的改变。改变-计算差分序列的第一列数据时用的是第一列的元素减去当前行的最后一列元素。原算法中采用的是第一列元素减去下一行第二列元素。原算法加窗之后结果比较好，不加窗时结果误差很大，而改变之后的算法不加窗效果依然很好。(Short time Fourier transform can be used to achieve the differential mode of expression on the book made a slight change. Change- calculating the difference sequence of the data with the first column is the first column of the matrix by subtracting the current element in the last column of row. Is used in the original algorithm subtracts the elements of the first column of the next row and the second column elements. After the results of the original algorithm windowed better, when the results window without great error, and after changing algorithms no window effect is still very good.)

压缩包是三个matlab源程序，用于产生自由空间路径损耗、对数距离路径损耗以及对数正态路径损耗。(Package is three matlab source, used to produce free space path loss, log distance path loss and lognormal path loss. )

this code for image segmentation

通信系统仿真原理与无线应用 源代码 大家如有需要可以下载看看(Principles of Communication Systems Simulation with Wireless Applications source code)

光子晶体波导非线性的程序！非线性系数和能量的关系曲线！(Nonlinear photonic crystal waveguide program! Non-linear coefficients and the energy curve!)

DV-hop程序，实现了简单的网络节点定位，还是PSO的改进。(DV-hop programs achieve the simple network node location, or PSO improvement.)

说明：  WSN中节点确定性部署算法代码，覆盖率达到100％，算法思路简单，易于实现(WSN node deterministic deployment algorithm code, coverage rate of 100%, the algorithm is simple, easy to implement)