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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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MATLAB6
详细介绍了Simulink工具箱，对于系统仿真很有用(Details the Simulink toolbox it is useful for system simulation)
- 2012-05-19 18:01:38下载
- 积分：1
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fangdaqi
由于一般的功率放大器不是线性的，且动态范围是有限的，所以当OFDM系统内这种变化范围大的信号通过非线性部件时，信号会产生非线性失真。(
As the general power amplifier is not linear, and the dynamic range is limited, so that when a large range of variation within an OFDM system, the nonlinear signal components, the signal will produce nonlinear distortion.)
- 2014-08-17 12:14:32下载
- 积分：1
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PCA_ColorTransfer
使用主成分分析法（PCA, Principal Component Analysis）进行颜色转换(Color Transfer)的Matlab程序(Function to implement the Color Transfer using PCA (Principal Component Analysis).)
- 2013-11-20 10:29:10下载
- 积分：1
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Introduction.to.Digital.Signal.Processing.and
数字信号处理和滤波器设计，希望对大家有帮助。(Digital signal processing and filter design, in the hope that everyone has to help.)
- 2007-09-20 13:19:54下载
- 积分：1
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PSO_case1
粒子群优化算法的一个寻优案例,测试函数含有多个局部极值，尝试用PSO算法寻找全局极值(a case of Particle Swarm Optimization algorithm.)
- 2011-01-27 16:58:18下载
- 积分：1
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Dynamic-planning-process
自己编的模拟退火算法源程序,希望对大家学习工作有帮助(Dynamic planning process in matlab)
- 2012-03-28 20:43:02下载
- 积分：1
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particle
说明： 粒子滤波代码，是用MATLAB实现的,可以参考(Particle filter code is the use of MATLAB to achieve, can refer to)
- 2008-08-27 14:55:34下载
- 积分：1
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INT01
说明： P1口的8个灯循环亮，按P32后全部闪烁5次后继续循环亮， 中断程序的典型应用。 (P1 mouth of the eight bright light cycles, according to P32, all the flashes five times after the continued cycle of light, interrupt procedures typical application.)
- 2010-03-22 15:29:19下载
- 积分：1
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Analytic-hierarchy-process-(ahp)-
对数据进行层次分析，求出各个变量的权重，主要用于求最优方案(The data analysis hierarchy, work out the weight of each variable, mainly for the pursuit of the best scheme
)
- 2012-05-17 21:28:07下载
- 积分：1
