PowerControlforWirelessData

code of implementing the K-Nearest Neighbor method

MUSIC算法是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(MUSIC algorithm is a matrix decomposition method based on feature space. From the geometric point of view, the observed spatial signal processing can be decomposed into signal subspace and noise subspace, it is clear that the two spaces are orthogonal. The signal received by the array to the subspace of the covariance matrix of the signal component corresponding eigenvectors, the noise subspace of the covariance matrix of all by the smallest eigenvalue (noise variance) eigenvectors corresponding to the composition. MUSIC algorithm is the use of orthogonal properties between these two complementary space to estimate the spatial orientation of the signal. Noise subspace of all vectors are used to construct the spectrum, all the spatial orientation of the spectrum corresponding to the peak position of the signal wave direction. MUSIC algorithm greatly improves the resolution measurements, while the antenna array adapted to any shape, but the prototype MUSIC algorithm requires to wave sign)

对NSGA-II算法进行改进，并应用于柔性车间调度的多目标优化问题(Of NSGA-II algorithm was improved and applied to flexible shop scheduling multi-objective optimization problem)

说明：  PQ分解法中的XB算法，比BX算法更快，用于高压电网潮流计算(powerflow computation)

求两张图像的平均值，比较求出的平均值与其中两张中的任意一张的效果(get the middle level of two images)

To detect skin color based on threshold. Using simple method , with LOC less than 100 but efficient

good for understanding

超松弛迭代法数值实验，matlab程序，含部分注释(Numerical experiments over relaxation iterative method, matlab program, including some comments)

基于改良圈算法的MATLAB编程求解旅行商问题，程序简单，但是比较粗糙(Improved algorithm based on MATLAB programming cycle traveling salesman problem, the program is simple, but relatively rough)

hnm analysis and synthesis of speech for enhancing degraded speech