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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。()
- 2008-05-07 10:38:59下载
- 积分:1
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PSOt
一个简单的只需定义函数,参数范围即能求解的粒子群优化算法(Just a simple definition of function, which can solve the parameters of the particle swarm optimization algorithm)
- 2008-05-09 10:08:25下载
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netba
基于matlab编写的BA无标度网络源代码,具有很好的指导意义(BA_net based on matlab)
- 2012-08-25 16:16:24下载
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lsmtan
在单频激光干涉仪的非线性误差中,运用细分计数方法对其进行修正,在存在高斯白噪声的情况下,采用传统的正切细分法和可修正误差的细分法来仿真比较。(In the nonlinear error of single frequency laser interferometer, the use of segmentation counting method, amending them, in the presence of Gaussian white noise, using the traditional method and the tangent subdivision subdivision errors can be corrected to simulate compare.)
- 2014-11-12 23:14:24下载
- 积分:1
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DBF_Factor
生成圆阵的DBF校正因子,该圆阵为环形阵列,生成数据已归一化(Generate circular array of DBF correction factor, the circular array of circular arrays to generate data have been normalized)
- 2010-03-04 23:40:18下载
- 积分:1
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acr120u-drivers
Driver For ACR120U Smart Card Reader
ACR120U proprietary driver package for win98/ME, 2000, XP, 2003/2008, Vista and Windows 7 (x86 & x64)
- 2014-08-18 04:01:09下载
- 积分:1
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apg_partial
部分APG算法解决了核函数相关模式识别问题的例子,可加速迭代进程,减少运算时间.(An Accelerated Proximal Gradient Algorithm for Nuclear Norm Regularized Least Squares problems)
- 2013-08-22 17:23:57下载
- 积分:1
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convolution-of-signals
The following attachment contains codes in Matlab for digital signal processing. In the file code is for digital signal convolution
- 2015-03-03 11:02:05下载
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S-METHOD
一种SAR成像的新技术,主要运用S-method方法,并进行了优化。(Adaptive S-Method for SAR-ISAR Imaging)
- 2015-03-11 10:17:04下载
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ditonglvboqi
基于Matlab的低通滤波器的设计源码,可以通过此代码,模拟低通滤波器的设计。并附有仿真后的图像。(Matlab low pass filter based on the design of source code, can this code, analog low-pass filter design. Together with simulation, the image.)
- 2010-06-30 09:53:54下载
- 积分:1