登录
首页 » matlab » fft

fft

于 2019-03-28 发布
0 133
下载积分: 1 下载次数: 22

代码说明:

说明:  用DFT 函数计算电压u, 电流i的基波(f1=50 Hz)的有效值和相位; 用FFT函数分别计算电压u和电流i 所包含的直流,基波和谐波的有效值和初相角; 可计算基波(f1=50 Hz)和各次谐波的功率p和功率因数con?.(The effective value and phase of fundamental wave (f1 = 50 Hz) of voltage U and current I are calculated by DFT function. The effective values and initial phase angles of DC, fundamental and harmonic waves contained in voltage U and current I are calculated by FFT function, respectively. The power P and power factor con of fundamental wave (f1 = 50 Hz) and harmonics can be calculated.)

文件列表:

fft作业\in.mat, 1219 , 2019-03-20
fft作业\un.mat, 1165 , 2019-03-20
fft作业\un1.m, 852 , 2019-03-20
fft作业\un2.m, 633 , 2019-03-20
fft作业\un3.m, 514 , 2019-03-20
fft作业\补充习题一.docx, 104366 , 2019-03-20
fft作业, 0 , 2019-03-28

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • legendrefit
    Legendre polynomial fitting(勒让德多项式拟合) 该算法程序找出N阶勒让德多项式你的的权值系数 (Legendre polynomial fitting (Legendre polynomial fitting) procedures to identify the algorithm N-order Legendre polynomials your weight coefficient)
    2008-12-27 03:38:23下载
    积分:1
  • de_test
    差分进化算法,有测试函数,是遗传算法的改进算法,收敛快,精度高。(Differential evolution algorithm, a test function, is an improved genetic algorithm algorithm, fast convergence, high precision.)
    2017-06-01 19:46:08下载
    积分:1
  • damping-ratio-for-silk-and-sand
    粉土的阻尼比拟合程序。拟合模型选择Davidenkov模型。(The silt damping match the proper procedure. The Fitting Model Davidenkov model.)
    2013-05-11 12:01:13下载
    积分:1
  • Semiparametric
    半参数回归模型在测绘领域中的应用,先利用多期数据构建半参数回归模型,然后再预报未来多期数据(Semiparametric regression model applied in the field of surveying and mapping, the first use of multi-phase data to construct semi-parametric regression model, and then predict the future multi-phase data)
    2013-07-12 16:22:14下载
    积分:1
  • SVD
    % 奇异值分解 (sigular value decomposition,SVD) 是另一种正交矩阵分解法;SVD是最可靠的分解法, % 但是它比QR 分解法要花上近十倍的计算时间。[U,S,V]=svd(A),其中U和V代表二个相互正交矩阵, % 而S代表一对角矩阵。 和QR分解法相同者, 原矩阵A不必为正方矩阵。 % 使用SVD分解法的用途是解最小平方误差法和数据压缩。用svd分解法解线性方程组,在Quke2中就用这个来计算图形信息,性能相当的好。在计算线性方程组时,一些不能分解的矩阵或者严重病态矩阵的线性方程都能很好的得到解( Singular value decomposition (sigular value decomposition, SVD) is another orthogonal matrix decomposition method SVD decomposition is the most reliable method, but it takes more than QR decomposition near ten times the computing time. [U, S, V] = svd (A), in which U and V on behalf of two mutually orthogonal matrix, and the S on behalf of a diagonal matrix. And QR decomposition are the same, the original matrix A is no need for the square matrix. The use of SVD decomposition method are used as a solution of least squares error method and data compression. Using SVD decomposition solution of linear equations, in Quke2 on to use this information to calculate the graphics performance quite good. In the calculation of linear equations, some indecomposable matrix or serious pathological matrix of linear equations can be a very good solution)
    2020-12-21 10:29:08下载
    积分:1
  • guochengcanshu
    标准节流件的计算中,利用软件MATLAB进行迭代计算(Standard Throttle pieces of the calculation, using MATLAB software iterative calculation)
    2007-06-04 12:02:31下载
    积分:1
  • pump
    用分离变量法求得波动方程傅里叶级数近似解,改程序可画出示功图(Wave equation is obtained by separation of variables method Fourier series approximation solution, the app can show the indicator diagrams)
    2015-01-08 22:26:08下载
    积分:1
  • 4dogs
    四犬相逐问题的计算机模拟 mathematica程序源代码 (Four dogs with the problem by computer simulation source code mathematica)
    2010-05-20 16:51:27下载
    积分:1
  • htjid
    包括脚本文件和函数文件形式,用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,采用的是脉冲对消法。( Including script files and function files in the form, Monte Carlo simulation method of calculating the American option price and basic description, It uses a pulse of consumer law.)
    2017-04-23 22:39:46下载
    积分:1
  • 禁忌法 C++
     禁忌搜索算法是一种全局性邻域搜索算法,模拟人类具有记忆功能的寻优特征。它通过局部邻域搜索机制和相应的禁忌准则来避免迂回搜索,并通过破禁水平来释放一些被禁忌的优良状态,进而保证多样化的有效探索,以最终实现全局优化(Tabu search algorithm)
    2018-04-13 09:03:34下载
    积分:1
  • 696518资源总数
  • 104226会员总数
  • 47今日下载