Three_phase_PVarray_intverter

空间信号的波达方向（Direction of Arrival，简称DOA）估计作为阵列信号处理研究的一个主要课题，在近些年来越来越得到大量的关注和研究。它可实现对空间中信源信号的准确的角度估计，实现信源方位等参数的具体精确检测，并且还具有很高的分辨力。这些特性使得DOA估计在声呐、通信及雷达等多种领域具有广阔的应用和发展前景。此程序为经典doa估计方法esprit算法。(direction of arrival,usually called DOA,has been an important subject recently.This program contains esprit)

三菱FX系列 PLC通过RS232BD与计算机串口通信程序,电缆最好采用原装的-Mitsubishi FX PLC RS232BD computer through serial communication procedures, Cable preferred the original

046测试~！！ ！！ ！！！ -046 test ~! ! ! ! ! ! ! ! ! ! ! 11

针对基于双曲线定位的DV-Hop算法中误差项的异方差性引起的定位误差大的问题，提出了一种基于加权双曲线定位的DV-Hop改进算法。算法分析了基于双曲线定位的DV-Hop算法模型中误差项的异方差性，用加权最小二乘法对异方差性进行纠正，对加权最小二乘法中的权值矩阵进行了推导并得到与跳数相关的最佳权值矩阵，使得误差项满足同方差性，所得估计值更加接近最佳线性无偏估计。仿真实验结果表明，所提算法在节点定位精度上较现有的基于双曲线定位的DV-Hop算法都有一定提高。(Aiming at the problem that the heteroscedasticity of observation errors leads to low locating accuracy in DV-Hop algorithm based on hyperbolic positioning, this paper proposes an improved DV-Hop algorithm which based on weighted hyperbolic positioning. The algorithm analysis the heteroscedasticity of the error term in the model and takes advantage of weighted least square method which corrects heteroscedasticity straightforwardly. Then, the weight matrix related to least hops between nodes is deduced, the estimators thus obtained are more close to the best linear unbiased estimator. The simulation results show that the location performance of the improved algorithm is better than that of the exsiting DV-Hop algorithm which based on hyperbolic positioning.)

鼠标单击图片可以移动图片，移到目标位置后再次单击，图片移动就成功了，很不错的一个鼠标移动图片的网页特效。(Mouse click the picture can move the picture, move to the target position and click again, the picture moved successfully, a good mouse to move the picture page effect.)

疯狂配对仿连连看Java游戏源代码，游戏规则是找出两个相同的图案并消掉，就算游戏成功，消的越多得分越高，在写这个配对游戏之前，国内的连连看游戏还没有出现呢。

GSM模块的串口操作源码，项目验证通过，可以通过PC机打电话，收发短消息，功能强大！-GSM module serial operation source, the project through certification, through PC phone, Sending and Receiving Short Messages by. Powerful!

一个表,完全用FLASH制作的,效果非常的好,欢迎大家分享-a table entirely with Flash production, the effect was very good, we are happy to share

说明：  数字图像处理入门书籍 内含多种图像处理技术及matlab实现代码(digital image books using matlab)

基于matlab的SEKS-GUI实现时空分析，可以是非线性的和非高斯的(Realizing Spatio-temporal Analysis)