newton-raphson

找到的一个比较实用的日历程序源码，用于开发与日期相关的程序，替代Calendar，实现其无法改变颜色等操作(To find a more practical calendar program source code, for the development of date-related procedures, alternative Calendar, realize that it can not change the color and other operations)

水准网平差程序，可以计算水准导线精度及各点高程，结果列于文件中。(Level network adjustment program can calculate the level of precision wire and the point of elevation, the results listed in the file.)

COmmunication Information Chap I

对人行走时的微动特性进行了分析，采用时频分析技术展示了人行走的微多普勒效应，与国外相应分析文章结论一致。(Fretting characteristics of people walking were analyzed, using frequency analysis when the micro-Doppler effect shows people walking, consistent with the analysis of the article corresponding foreign conclusions)

用奇异值分解来对语音信号进行噪声消除(using singular value decomposition of voice signal to noise elimination)

说明：  一个BP神经网络的matlab程序，利用BP神经网络实现预测功能。可以编制相关的预测程序参考。(A BP neural network matlab procedures, take advantage of BP neural network function prediction. Able to prepare the relevant reference prediction procedures.)

《A Closed-Form Solution to Natural Image Matting》一文的代码，可用于图像抠图，抠图效果比photoshop好(《A Closed-Form Solution to Natural Image Matting》image soft matting)

matlab实现快速傅立叶变换，采用了矩阵法(matlab realize fast Fourier transform using the matrix method)

EQUALIZER USING MATLAB

多端直流输电系统(multi-terminal DC，MTDC)为解决 大型风电基地功率外送的瓶颈问题提供了一个最佳解决方 案。研究了基于电压源换流器(voltage source converter，VSC) 的多端直流输电系统应用于大规模风电功率长距离外送时 的协调控制策略。通过构建一个四端系统连接两个大型风电 基地及本地电网向远方负荷中心进行功率输送，实现了风电 场的功率汇集和外送。仿真验证了该协调控制策略在大扰动 情况下，不仅能够提高VSC-MTDC系统潮流重新分配的能 力，而且可使风电场对直流网络提供一定功率支撑，增强了 电力系统动态稳定性 (Multi-terminal DC (MTDC) power transmission system is regarded as the optimal solution scheme to sent out power from large-scale wind farm. A coordinated control strategy for voltage source converter (VSC) based MTDC transmission system applied to long-distance power transmission from large-scale wind farm is researched. By means of constructing a four-terminal system connecting two large-scale wind power bases with local power grid to send out power to faraway load center, the wind power converging and sending out by the proposed coordinated control strategy are implemented. Simulation results show that the proposed coordinated control strategy not only can improve the ability of reallocating power flow in VSC-MTDC transmission system under large disturbance, but also can make wind power base providing a certain power support to DC transmission network, thus the dynamic stability of power grid can be enhanced. )