-
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
-
matlabyouhuajisuan
这是一个MATLAB6。5 优化计算研究例题的所有源码，希望对优化算法研究者能有所帮助。(This is a MATLAB6. 5 Study on optimization of all the source code example, the researchers hope to optimize the algorithm can be helpful.)
- 2009-04-20 17:28:15下载
- 积分：1
-
msk
2MSK调制解调 双极性信号输入 产生简单直观的误码率图(2MSK modem Bipolar signal input to a simple and intuitive diagram of bit error rate
)
- 2012-05-16 13:11:09下载
- 积分：1
-
VaRaaCVaR
在险价值 条件在险价值 风险度量 matlab软件(value at risk)
- 2013-03-21 22:35:14下载
- 积分：1
-
Rectifier
基于电压外环，电流解耦内环的三相PWM整流器仿真，电压外环采用PID控制，电流内环采用滑模控制，可以正常运行。(The three-phase PWM rectifier based on the voltage outer loop and the current decoupled inner loop is simulated, the voltage outer loop is controlled by PID, and the current inner loop is controlled by sliding mode.)
- 2021-04-28 16:18:44下载
- 积分：1
-
encoder
encoder of speech compression
- 2010-03-02 16:46:44下载
- 积分：1
-
DFP
研究生学习期间，优化方法课程中无约束线性规划的DFP的matlab程序(DFP matlab program)
- 2013-10-13 18:35:44下载
- 积分：1
-
radar_data2
雷达杂波抑制算法 (Radar clutter suppression algorithm)
- 2010-08-10 16:56:51下载
- 积分：1
-
shijianyujianmo
时间域建模，matlab提供了三种时间域建模函数，在这个压缩包里面分别叙述。(Time domain modeling, matlab provides three time-domain modeling functions, in this compressed packet which are described separately.)
- 2009-02-08 11:21:26下载
- 积分：1
-
gui
a gui created in matlab that finds the voltage in various shapes like triangles rectangles and circles. It can also find the electric field gradient
- 2010-10-29 20:32:05下载
- 积分：1
