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DFT
信号与系统试验报告
离散傅立叶变换(DFT)和频谱分析
一、实验内容
1、实验题目
(1)编写DFT、IDFT程序,并验证其正确性(提示:可利用冲激函数进行验证)。
(2)计算信号f(t)=e-at2sin(2∏ft)的离散傅立叶变换(DFT),求其振幅谱,相位谱、振幅最大值对应的频谱(检测主频)以及对发f(t)进行DFT变换的结果实现IDFT变换,并画出图形。
参数选择如下:频率f =30HZ,a=f 2㏑(M),M=2.5
2、通过实验理解信号振幅谱、相位谱的物理意义,掌握DFT、IDFT算法的实现方法。()
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toturiual-matlab
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Tool for Analysis
How Simulink Software Interacts with the MATLAB
Environment
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fan-zibo
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Lax-Wendrof
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zuixiaopingfang
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AHP
层次分析(AHP)/网络分析(ANP)Analytic Hierarchy Process是一种十分实用的决策方法。
是对一些较为复杂、较为模糊的问题作出决策的简易方法,它特别适用于那些难于完全定量分析的问题
num:包括目标层和方案层的总层数
g:行向量(各层准则数量,包括目标层(第一层)和方案层(最后一层))。
w:返回值w是最后决策的方案层的权重,根据输出选择最佳方案
在输入矩阵时请加‘[]’号,否则会出现语法错误。
调运方式:w=hierarchy(num,g)( Analytical Hierarchy (AHP)/Network Analysis (ANP) Analytic Hierarchy Process is a very practical approach to decision making. Is the easy way of making some of the more complex, more ambiguous issues make it particularly difficult for those who complete quantitative analysis of the problem num: The total number of layers including the target layer and the solution layer g: row vector (layers Guidelines number, including the target layer (first layer) and program level (the last level)). W: w The return value is the right solution layer of the final decision of the heavy, choose the best option based on the output when the input matrix please add ' []' No, there would be a syntax error. Transporting way: w = hierarchy (num, g))
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- 积分:1
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CHENJIANG
卡尔曼滤波灰色理论在变形监测中的预测预报(Calman filter grey theory in prediction of deformation monitoring)
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newton-raphson
newton raphson algorithm
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