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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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clutter
雷达杂波模拟，杂波幅度分布，单目标起伏衰减模拟图(Radar clutter simulation and clutter amplitude distribution of the ups and downs of the single objective attenuation mimic diagram)
- 2013-03-06 10:50:59下载
- 积分：1
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one-MATLAB-programming-interface
一个实例搞定MATLAB界面编程，作者彭军(The author is pengjun,One instance to solve the MATLAB interface programming)
- 2013-03-11 10:12:41下载
- 积分：1
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QGA
典型的量子遗传算法，求解最值问题,绝对没有密码(The typical quantum genetic algorithm is the most value problems)
- 2014-11-13 19:22:05下载
- 积分：1
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875
Flocking Controls for Swarms of Mobile Robots
Inspired by Fish Schools
- 2015-01-06 04:20:07下载
- 积分：1
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dirr
获取一个文件夹的创建时间、文件夹中文件内容及文件创建时间等信息(Get a folder was created, the contents of files in a folder and file creation time, etc.)
- 2013-05-23 11:03:17下载
- 积分：1
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matlab碎纸片拼接
利用matlab实现不规则形状碎纸片的拼接
- 2022-03-09 17:02:07下载
- 积分：1
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bp神经网络轴承
轴承故障特征提取与诊断的准确性密切相关，其方法在不断改进，例如传统指标、TALAF和THIKA指标。本文采用基于粒子群优化的核主元分析特征提取方法。
确定故障特征参数。首先根据实验的数据计算出所有时频域特征参数，并算取各个特征值的均值，作为特征参数集；其次利用粒子群算法优化径向基核函数的参数；通过核主元分析特征提取方法，根据主元对特征集贡献率的大小，提取有效特征。
- 2022-03-13 08:12:41下载
- 积分：1
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KFILADPQ
Experiments with adaptive kalman filter for a Simple Noisy measurements
- 2010-04-13 23:38:46下载
- 积分：1
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算法联系 - 副本
说明： 求解非线性方程组，迭代法，数值分析，不动点迭代法(Solving nonlinear equations)
- 2019-12-30 22:43:32下载
- 积分：1
