imgretrieval

matlab考试必备，我们学校考试的试卷，有需要的拿去(matlab test necessary, our school examination papers, there is a need for Naqu)

用matlab产生的jake接收机的模型,可以下载的,好不容易找到的.(Jake generated by matlab model receiver, you can download and hard to find.)

简单暂态计算：输入初始功率、无限大系统母线电压、系统等值电抗矩阵、惯性时间常数、间断数、发生故障时段、每段间隔时间；得到结果有不平衡功率、功角增量、电磁功率、发电机转子摇摆曲线(Simple transient calculation: input initial power, infinite system bus voltage, the system equivalent reactance matrix, inertia time constant, continuous number, the failure time, each interval get results uneven power, power angle increment, electromagnetic power generator rotor swing curves)

直流电阻分析，戴维南定理，一阶动态电路，二阶动态电路，正选稳态电路 (DC resistance analysis, Thevenin theorem, first-order dynamic circuit, the second-order dynamic circuits are selected steady-state circuit)

该算法是实现Kmean聚类算法。包含初始聚类中心，聚类成员列表，最终聚类中心，最终聚类中心的距离，方差分析表，每个聚类中的案例数。(The algorithm is a clustering algorithm to achieve Kmean. Contains the initial cluster centers, cluster membership list, the final cluster centers the final cluster centers, ANOVA table, the number of cases in each cluster.)

电力系统状态估计快速解耦法（PQ分解：有功和无功的分解；雅克比矩阵常数化）(Fast decoupling method for power system state estimation (PQ decomposition decomposition; active and reactive Jacobi matrix))

说明：  现代海战需要功能综合的作战平台和性能优良的 武器系统来应对，海战场复杂多维的环境因素对海上 兵力运用有很大的影响。因此，如何准确建立海战场 的评估指标体系并进行科学评判是指挥员做出决策的 重要前提。目前，海战场环境评估的方法有层次分析 法、模糊评判法、指数法等11’21。针对这些方法主观性 比较强等不足，本文引入云重心的评估方法简单易行， 科学有效，可操作性强。 基于云重心方法的海战场环境评估(Modern naval warfare needs integrated operational platforms and excellent weapon systems to cope with. The complex and multi-dimensional environmental factors of naval battlefield have a great impact on the use of naval forces. Therefore, how to accurately establish the evaluation index system of sea battlefield and make scientific evaluation is an important prerequisite for commanders to make decisions. At present, the methods of Marine Battlefield Environment Assessment include analytic hierarchy process, fuzzy evaluation, index method and so on. In view of these shortcomings, such as strong subjectivity, this paper introduces cloud gravity center evaluation method which is simple, scientific and effective, and operable. Sea Battlefield Environment Assessment Based on Cloud Barycenter Method)

光伏电池阵列模型，用于多电池的光伏发电仿真模型的建立(Photovoltaic array model for multi-cell photovoltaic Simulation Model)

无线传感器网络定位算法基于节点的CAB算法(CAB algorithm for WSN)

matlab需要那么复杂的多重积分,实在没办法才考虑使用.一般来说,积分中带有参数,无论是被积表达式或者说积分限都是相当麻烦的,求解消耗的时间非常多.............数值积分才是解决问题的通法,可以自己调节精度~(it is good. If you visited Indianapolis you would be able to find your way around easily because most of the streets corss each other like a chessboard(棋盘). In the center of the city, called the Circle, stands the Soldiers and Sailors’Monument, 100 Meters high. Also in the center there are many buildings made of the famous Indiana stone, which makes them white in color.)