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base2fft
根据DFT的基二分解方法,可以发现在第L(L表示从左到右的运算级数,L=1,2,3…M)级中,每个蝶形的两个输入数据相距B=2^(L-1)个点,同一旋转因子对应着间隔为2^L点的2^(M-L)个蝶形。从输入端开始,逐级进行,共进行M级运算。在进行L级运算时,依次求出个2^(L-1)不同的旋转因子,每求出一个旋转因子,就计算完它对应的所有的2^(M-L)个蝶形。因此我们可以用三重循环程序实现FFT变换。同一级中,每个蝶形的两个输入数据只对本蝶形有用,而且每个蝶形的输入、输出数据节点又同在一条水平线上,所以输出数据可以立即存入原输入数据所占用的存储单元。这种方法可称为原址计算,可节省大量的存储单元。附件包含算法流程图和源程序。(err)
- 2008-04-20 23:11:05下载
- 积分:1
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Lyapunov_3_Terra
基于定义法计算Lyapunov指数。只要在matlab命令窗口中直接输入文件中函数的名称即可。(calculated based on the definition of Lyapunov exponent. Matlab as long as the order window directly onto the document function name instead.)
- 2007-05-22 19:47:49下载
- 积分:1
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matlab
偏微分方程的实用解法以及matlab的相应应用(Practical solution of partial differential equations and the corresponding application in matlab)
- 2013-04-13 23:22:18下载
- 积分:1
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VC(6.0)_ecg
用VC6.0编写的对话框程序,可以读取ECG(txt格式)数据,并画图。采用差分阈值法对心电信号进行R波的检测并显示R波检测的个数,效果较好。程序中也编写了一个滤波器对心电数据进行滤波。(VC6.0 prepared by the dialog box procedure, you can read ECG (txt format) data, and drawing. Differential threshold method ECG R-wave detect and display the number of R-wave detection, the better. The program also write a filter for filtering the ECG data.)
- 2015-07-29 13:51:49下载
- 积分:1
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Statistical-description-
数学建模中数据的分析及描述,里面包括一些matlab程序和讲义(Mathematical modeling, data analysis and description, which includes some of the matlab program and handouts)
- 2012-06-19 12:18:21下载
- 积分:1
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Matlab-Xfoil
使用Matlab语言生成Xfoil的计算文件,并调用Xfoil快速计算翼型的气动力(Using Matlab language generation Xfoil calculation file and call Xfoil quick calculation of aerodynamic airfoil)
- 2020-10-26 16:19:59下载
- 积分:1
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ZGP
磷锗锌晶体ZGP的非临界相位匹配下泵浦光波长调谐和一类、二类相位匹配下,角度调谐曲线。(pump wavelength tuning of Non-critical phase matching ZGP crystal and angle tuning of Type 1&2.)
- 2016-04-27 20:43:28下载
- 积分:1
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gaojen_v25
IMC-PID是利用内模控制原理来对PID参数进行计算,应用小区域方差对比,程序简单,一个师兄的毕设。( The IMC- PID is using the internal model control principle for PID parameters is calculated, Application of small area variance comparison, simple procedures, A complete set of brothers.)
- 2020-12-03 16:39:26下载
- 积分:1
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zd
说明: 该程序是我研制的“基于ARM9的无线自动报靶系统”的MATLAB算法的仿真验证部分
该程序的主要功能是对靶纸上的靶点和靶环进行提取和计算,然后计算出靶点的环数。
程序里面有注释(The program that I developed ARM9-based wireless automatic reported target system MATLAB algorithm simulation part of the program s main function is to target the paper target and target ring extraction and calculation, and then calculate the target of ring a few. Procedures there are Notes)
- 2009-01-14 17:54:20下载
- 积分:1
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chengxu
数字信号的传输:1、实现滚降系数分别为0,0.5,1时信号时域频域和功率谱密度以及眼图的波形,并比较异同。
2、对(2/4/8)PSK,DPSK通信系统进行蒙特卡罗仿真,通过功率谱密度、误比特率来比较他们的性能(采用最佳接收方式)。
(Digital signal transmission: 1, to achieve roll-off coefficients were 0,0.5,1 time domain when the signal frequency and power spectral density, as well as eye-diagram of the waveform, and compare the similarities and differences. 2, (2/4/8) PSK, DPSK communication system, Monte Carlo simulation, through the power spectral density, bit error rate to compare their performance (to adopt the best way to receive).)
- 2008-06-28 10:06:51下载
- 积分:1