Newton-Raphson-power-flow

说明：  Matlab编写的SPIHT 也叫层树分集压缩算法(Written in Matlab, also known as layer SPIHT compression algorithm tree diversity)

随机序列生产一维信号 用DB3小波进行二尺度分解 示范了dwt函数的用法 计算重构信号和原始信号的误差(Random sequence to produce one-dimensional signals DB3 wavelet decomposition of two-scale demonstrates the usage of computing functions dwt reconstructed error signal and the original signal)

MATLAB智能算法30个案例分析_源代码(30 case studies of the MATLAB intelligent algorithm source code,)

本程序对于圆阵列的DOA估计空间平滑算法，可以很好的估计出角度的到达方向(This procedure for the circular array of DOA estimate spatial smoothing algorithm, can be very good to estimate the direction of arrival angles)

详细描述了如何利用matlab编程语言求取极值问题，描述的十分清楚，有用(Detailed description of how to use the matlab programming language to strike extremal problem, described in very clear, useful)

CoMP场景下，基于PMI的IRC干扰消除算法的仿真程序,算法可以参考论文“Interference Mitigation Based on Enhanced Interference PMI Notification”(In the CoMP scenario,the simulation program for an IRC interference cancellation algorithm based on PMI, which is described in "CoMP scenario, based on the PMI IRC interference cancellation algorithm simulation program")

使用有限时域差分法，用matlab模拟三维光子晶体(the simulation of TM mode in three-dimensional photonic crystals)

this is a mdl file of matlab to Ideal Switch use in network

用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来 表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控 制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解, 所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉 角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的 转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一 的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换 仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90° 之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文 提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法, 经过数字仿真证实,这个算法是完全正确的、而且很实用。(Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion , You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood, Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion Only suitable for Euler angles- 90 ° to+ 90 ° betwe)

SAR图像中的多尺度边缘检测，自动化程序高，效果明显(SAR images in multi-scale edge detection, automated processes, the effect is obvious)