ContrastStretchNorm

摘　要:根据HFC网络上行信道的特性,建立了信道模型 分析了上行信道中存在的各种噪声对QPSK 调制技术的影响。结果表明在C /N (传输信道载噪比)较低的情况下,采用QPSK调制方式,可以提高系 统的抗干扰能力。 关键词: QPSK 光纤同轴电缆混合网 上行信道 噪声(Abstract: HFC network in accordance with the characteristics of the uplink channel, the establishment of a channel model an analysis of the various uplink channel noise on the impact of QPSK modulation. The results show that the C/N (transmission channel carrier-to-noise ratio) lower, the use of QPSK modulation, can improve the system of anti-interference ability. Keywords: QPSK hybrid fiber coaxial cable network uplink channel noise)

This program is used to do optimisation for multidimension system, SIMPLEX method for multidimensional unconstrained non-linear optimsiation (This program is used to do optimisation for multidimension system, SIMPLEX method for multidimensional unconstrained non-linear optimsiation)

此程序计算了空间功率平均分配和注水分配的情况下信道的容量和中断容量。(this procedure to calculate the average power distribution space and the distribution of water injection under the channel capacity and outage capacity.)

说明：  在为分割使用分水岭变换之前，通常使用梯度幅度来预处理图像。(Before using watershed transformation for segmentation,we usually use gradient magnitude to preprocessing the image. )

matlab辅导与指南，所有的matlab相关指令一应俱全。(matlab counseling and guidance readily available to all relevant directives matlab.)

2D双向PCA(2D2PCA),二维主成分分析(2DPCA)的实质是对图像矩阵按行进行图像压缩抽取特征,消除了图像列的相关性.(2D bidirectional PCA (2D2PCA), two-dimensional principal component analysis (2DPCA) real image matrix row the Image Compression extraction characteristics to eliminate the correlation of the image column.)

对变压器噪声信号的频谱分析，对比matlab中功率谱分析的各种方法，并显示频谱分析结果图(Transformer noise signal spectrum analysis, power spectrum analysis of the various methods matlab contrast and displays the results of spectral analysis chart)

基于MATLAB的分量lasso程序，利用了glmnet工具包，可以很好的运行(MATLAB-based component lasso procedures, the use of glmnet toolkit can be a good run)

解决背包问题 自动求解最大价值 利益最大化问题(Automatically solve the Knapsack Problem to maximize the interests of maximizing the value of solving the problem)

一个较好的MATLAB潮流程序，希望对电力系统工作者有帮助。(a good trend MATLAB procedures in the hope that the electricity system is to help workers.)