登录
首页 » Fortran » fft

fft

于 2010-04-14 发布 文件大小:1KB
0 183
下载积分: 1 下载次数: 1

代码说明:

说明:  虽然现在网上的FFT程序很多,但是有的结果是错误的,比如说,经过一次正反变换后,不能得到原来的数列,所以,本人测试了多个程序,提供几个能用的,给大家,希望大家支持! (Although many online FFT program, but some results are wrong, for example, through a positive and negative change, you can not get the original series, so I tested several programs to provide a few usable for everyone I hope we can support!)

文件列表:

fft.txt

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

  • FAREA
    读入断面数据,根据地形,水位,进行相应计算 (calculate the area and depth )
    2012-01-30 09:48:02下载
    积分:1
  • ANSYScalculating-the-cylinder-craze
    这是ansys里面apdl语言,用于计算圆柱体开裂(This is the ansys inside apdl language, used for calculating the cylinder craze)
    2012-07-02 20:40:35下载
    积分:1
  • Linear Algebra Package
    说明:  特征值分解,HouseHolder分解等(matlab Linear Algebra Package)
    2019-11-06 22:20:41下载
    积分:1
  • ModelC_alloy
    说明:  相场法材料计算的modelc-alloy 对应的基础代码,自取基础有用(The basic code corresponding to modelc-alloy for phase field method material calculation, useful for self-extraction)
    2020-06-25 12:40:02下载
    积分:1
  • Tikhonov
    电容层析成像Tikhonov算法的演示实例,带有详细的说明(An example of a demonstration of the Tikhonov algorithm for capacitance tomography, with a detailed description)
    2020-11-23 16:09:34下载
    积分:1
  • MP_DOA
    针对多径效应的影响,提出了一种基于矩阵束的MIMO 雷达低仰角快速估计方法。该方法同时考虑了发射多径信号和接收多径信号,采用单样本数信号矢量构造了一个前后向矩阵束,并利用两个酉矩阵对该矩阵束进行降维处理,最后采用广义特征值分解的总体最小二乘法来估计目标角度。算法不需要估计数据协方差矩阵,可在低 信噪比和单样本数情况下,有效地克服多径效应,实现同时多目标低仰角估计,相比最大似然算法,避免了谱峰搜索,计算量小。仿真结果验证了该算法的有效性。(To overcome the multipath effect, a fast algorithm for low elevation estimation for MIMO radar via matrix pencil is proposed. The signals both in transmit multipath and receive multipath are considered. Firstly, a forward-backward matrix pencil is formed based on the single-sampled vector. Secondly, the reduced-dimensional processing is applied to the matrix pencil via two unitary matrices. Finally, the generalized eigen-decomposition is employed to estimate the low elevation in multipath environments directly. Without the covariance matrix estimation, the proposed method can overcome multipath effect effectively in case of low SNR and estimate multi-target simultaneously. Compared with Maximum Likelihood (ML) method, it avoids spectrum peak searching and reduces the computational burden. Numerical results verify the effectiveness of this method)
    2011-09-03 10:54:42下载
    积分:1
  • 121
    1. 牛顿迭代法 function [x,i]=newtonmethod(x0,f,ep,Nmax) 牛顿法求非线性方程根 x0是输入初始值, f是输入函数, 精度要求ep, Nmax为最大迭代次数 x是输出迭代序列,i是迭代次数 2. 二分法 function [x,k]=bisection(a,b,f,ep) 二分法解非线性方程 输入区间[a,b],函数f和误差ep, Nmax为最大二分次数 x为输出近似根, k为二分次数 ( Newton s law and the dichotomy)
    2020-10-12 22:57:32下载
    积分:1
  • fortran_MD
    Fortran编的关于分子动力学模拟的程序(Fortran programs compiled on the molecular dynamics simulations)
    2014-02-26 22:16:23下载
    积分:1
  • FFT
    FFT with fix point 2*N
    2013-10-06 15:38:38下载
    积分:1
  • cct
    该程序利用赫兹理论,计算齿轮的接触应力,适用于直齿和斜齿轮的接触应力计算!(calculating contact stress )
    2021-02-17 11:59:46下载
    积分:1
  • 696518资源总数
  • 105549会员总数
  • 12今日下载