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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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colorDetectController
在算法设计中实用Strategy模式,实用Controller实现模块间通信,实用Singleton设计模式,实用模型-视图-控制器架构设计应用程序,程序内容是颜色空间转换(colorDetection.h
colorDetection.cpp
colordetector.cpp
correspond to Recipe:
Using the Strategy Pattern in Algorithm Design
)
- 2014-02-21 11:48:12下载
- 积分:1
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MA4
串的一些基本运算,删除一段子串,置换,求s串中从start位置开始长度为len的子串等等(Some of the basic string operations, delete a substring, replacement, seeking s string starting from the start position of the sub-string of length len, etc.)
- 2009-11-16 13:10:13下载
- 积分:1
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t
说明: 文章编辑系统,输入一页文字,程序可以统计出文字、数字、空格的个数。
静态存储一页文章,每行最多不超过80个字符,共N行
(Article editing system, input a word, the program can be worked out, words, numbers, the number of spaces. Static storage an article, each line no more than 80 characters, a total of N rows)
- 2010-01-25 23:00:40下载
- 积分:1
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Monte-Carlo-simulatio
对一个使用相关器或匹配滤波器的二进制通信系统,用Monte Carlo仿真估计Pe,并画出Pe对SNR的图。(A correlator or matched filter using a binary communication system with Monte Carlo simulation estimates Pe, and Pe draw the map of the SNR.)
- 2011-10-04 10:44:48下载
- 积分:1
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matlab_iir16
给出了通过matlab设计IIR低通滤波器的程序,并通过程序把在DSP中所用到的变量计算出来,很有价值。(Matlab given by IIR low-pass filter design procedures, and procedures used in the DSP in the calculated variables, very valuable.)
- 2009-06-15 10:23:48下载
- 积分:1
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6_1
1. 定义一个抽象学生类CStudent,它具有公有成员函数Average(),该函数用于计算学生的平均分,函数为虚函数;定义一个文科学生类CStudentLiberalArts,它是类CStudent的派生类,并以公有方式派生,它具有的成员有:
1) 保存英语、政治、数学、地理和历史、美术成绩的整形成员变量;
2) 设置上述变量的公有成员函数;
3) 输出上述变量的公有成员函数;
4) 公有的成员函数Average()用于计算学生的平均分;
定义一个理科学生类CStudentScience,它是类CStudent的派生类,并以公有方式派生,它具有的成员为:
1) 保存英语、物理、数学、化学和计算机、程序设计成绩的整形成员变量;
2) 设置上述变量的公有成员函数;
3) 输出上述变量的公有成员函数;
4) 公有的成员函数Average()用于计算学生的平均分;
编写主函数,并测试以下内容:
1) 定义一个CStudent的指针数组pStu,数组长度为4;
2) 动态创建2个文科学生的对象,地址存于pStu数组的0-1个元素内;
3) 动态创建2个理科学生的对象,地址存于pStu数组的2-3个元素内;
4) 利用while循环调用数组里每个元素的计算平均成绩操作;
释放动态分配的空间,确保必要的析构函数能被调用。
(1 define an abstract class student CStudent, it has a public member function Average (), this function is used to calculate the student s average points function as virtual function definition of a liberal arts student class CStudentLiberalArts, it is the class CStudent derived class, and public be derived, which has members are:
1) Save English, shaping member variables politics, mathematics, geography and history, art achievements
2) Set the above variables public member function
3) public member function of the output of the variable
4) public member function Average () is used to calculate the average student s points
The definition of a science student class CStudentScience, it is the class CStudent derived class, and public manner derived, which has members as follows:
1) Save English, physics, mathematics, chemistry and computer programming achievement shaping member variables
2) Set the above variables public member function
3) public member function of t)
- 2014-10-20 15:29:16下载
- 积分:1
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RobotSoccerSysV1.0
When I studied at Peruvian university computer science , We developed a computer vision software about mini robot soccer. And I want to share it It was a first version.
- 2014-11-28 11:19:41下载
- 积分:1
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2010-04-15_Balanced_PSO
Balanced PSO,可作为benchmark比较(You campare your algorithm with it.)
- 2013-09-21 10:22:38下载
- 积分:1
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FingerPrint
说明: 这是用于指纹识别的matlab的程序,完整的哦,共享,也许有用哈(finger)
- 2010-04-29 18:05:59下载
- 积分:1