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awgn
DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求：
(1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。
(DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)
- 2008-12-24 20:12:16下载
- 积分：1
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small
说明： 声波方程正演模拟小模型波场绘制。只有一层，震源在中间。C程序，Matlab绘图。(Acoustic wave equation forward modeling small-scale model wave field rendering. Only one layer, source in the middle. C program, Matlab graphics.)
- 2009-08-25 09:28:04下载
- 积分：1
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qumohu
图像去模糊---matlab，信号与系统，大作业题目，非常不错，希望您喜欢。(Image deblurring--- matlab, signals and systems, large job title, very good, I hope you like it.)
- 2014-10-12 19:23:01下载
- 积分：1
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MU-OFDM_release
文中包含了完整的OFDM源代码程序，使用matlab编写，对做OFDM的人员有绝对好处。(text contains a complete OFDM source code, the use of Matlab preparation, OFDM right staff to do the absolute advantage.)
- 2007-04-02 07:24:38下载
- 积分：1
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CheckerboardKarel
斯坦福大学公开课《编程方法》作业任务1----CheckBoardKarel源码。(Stanford University open class " programming methods" job tasks 1---- CheckBoardKarel source.)
- 2012-09-17 09:08:47下载
- 积分：1
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LMS
LMS自适应滤波算法,(LMS adaptive filtering algorithm,)
- 2007-12-04 15:36:04下载
- 积分：1
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PROG2
MATLAB code to Import two images and perform
Image Addition,subtraction,multiplication, division,blending
- 2015-01-06 02:06:36下载
- 积分：1
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MassSpringUndamped
Plots the results for a mass-spring system.
- 2011-12-08 22:15:16下载
- 积分：1
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Lab
AM modulation using matlab is provided within this rar file
- 2019-03-14 08:30:56下载
- 积分：1
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OFDR传感系统的建模仿真
OFDR传感系统的建模仿真(Modeling and Simulation of OFDR sensing system)
- 2021-04-15 15:18:54下载
- 积分：1
