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zabo
说明: 对数正态分布的杂波程序 比较经典的有所改动(Lognormal distribution of the clutter classic procedure is subject to change)
- 2007-10-11 20:41:21下载
- 积分:1
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shiyan2
本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号,主要涉及到电话拨号音合成的基本原理及识别的主要方法,利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 - 9 不同按键的拨号音,并能够对不同的拨号音加以正确的识别,实现由拨号音解析出电话号码的过程,完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF(This paper describes the principle of DTMF and how MATLAB to generate DTMF signals, mainly related to the telephone dial tone and identification of the basic principles of synthesis of the main method, using MATLAB software, and the FFT algorithm to the telephone communication system, the synthesis and identification of dial tone . And further the use of MATLAB' s graphical user interface simple and intuitive GUI make the analog interface. Able to use a different fundamental frequency matrix synthesis of 0- 9 different button dial tone and can be different correct identification of dial tone to achieve by the dial tone of the process of parsing a telephone number to complete the telephone dial tone system, a simple experiment simulation.-This paper described the principle and how DTMF in MATLAB to generate DTMF)
- 2010-01-05 00:57:59下载
- 积分:1
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02_OFDM_Simulation_Using_Matlab
根据 DVB-T 欧洲标准写的一个OFDM matlab 仿真,其中包括发射器和接收器。文章中有matlab程式的详细介绍,有仿真方框图,还有每步的实验结果分析,特别适合OFDM的初学者。算是OFDM比较简单的一个入门介绍。英文也比较浅显,可读性很强(According to the European DVB-T standard to write a OFDM matlab simulation, which comprises a transmitter and a receiver. Article has a matlab program in detail, there is a block diagram of the simulation, as well as analysis of the experimental results of each step, especially for OFDM for beginners. OFDM considered a relatively simple introduction to. English is also relatively simple, readable)
- 2013-09-30 22:59:18下载
- 积分:1
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huanhequxian
说明: 用于计算公路铁路施工中的缓和曲线的计算!(Used to calculate the railway and highway construction in the calculation of Curve!)
- 2011-03-09 21:53:50下载
- 积分:1
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daitongcaiyang
中频数字正交采样,并进行滤波,得出基带信号(IF quadrature sampling and filtering)
- 2011-05-14 11:35:35下载
- 积分:1
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vioce-signal-processing
录制自己的一段语音,时间控制在15秒到30秒左右;利用wavread函数对自己的语音进行采样,记住采样频率。
(1)画出原始语音信号的时域波形,而后以1秒为间隔,求出每秒数据的功率谱。
(2)根据语音信号特点,分别设计FIR及IIR滤波器,分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波,画出滤波后时域波形。用sound函数回放语音信号。
(3)求出特征频段语音信号随时间变化的曲线(每间隔0.05秒求一次功率谱)。
(Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))
- 2011-06-01 22:29:27下载
- 积分:1
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QAM_Matlab
qam的matlab程序。m文件,非simulink。各个模块比较全面,希望有所帮助(qam matlab)
- 2009-04-18 11:37:18下载
- 积分:1
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watermarking
实现在语音的DFT域内嵌入水印信息,使用平衡GOLD序列作为扩频码。(Realization of the embedded watermark information in the voice of the DFT domain,balance GOLD sequence as the spreading code)
- 2012-04-08 13:26:06下载
- 积分:1
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ask
ask调制解调程序,包括序列的产生,加噪,频谱分析,低通滤波输出,抽样判决等(ask modulation and demodulation process, including the sequence generation, noise, spectrum analysis, low-pass filtered output, sample sentences, etc.)
- 2013-10-21 14:01:28下载
- 积分:1
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1.1-Anadromes
A project in university
- 2011-11-24 20:47:06下载
- 积分:1