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FIR-filter
FIR语音滤波的MATLAB 程序,附带噪声的音频,和消噪后的音频,(MATLAB FIR filtering process voice, with the noise of the audio, and denoising of audio,)
- 2011-06-02 16:48:05下载
- 积分:1
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SelfSupervisedARTMAP
The “clock” source allows you to generate a time signal if you want to send that back to the workspace
- 2014-08-17 20:33:22下载
- 积分:1
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License-plate-recognition
基于神经网络的车牌识别matlab源码。好东西(License plate recognition based on neural network matlab source)
- 2013-11-18 22:16:24下载
- 积分:1
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MATLAB-PC
matlab实现主成分分析,提取几个主成分,实现贡献计算。(matlab to achieve the principal component analysis)
- 2011-11-22 10:40:08下载
- 积分:1
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BPF
Matlab GUI for bandpass filters
- 2010-09-24 22:27:48下载
- 积分:1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠:对连续信号采样,要求连续信号是带限的,采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏:DFT对时域信号进行了截断(相当于采样信号乘了一个窗函数),时域的乘积相当于频域卷积,改变了原信号频谱。
改用其他窗函数(非矩形)改善泄漏。
3、栅栏现象:DFT 只给出了频谱在采样点上的取值,采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分:1
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通信原理HUFFMAN编码
一个通信原理实验,huffman编码的实现过程,并且有详细说明(a communication principle experiment, the realization of Huffman coding process, and is described in detail)
- 2005-06-05 20:55:25下载
- 积分:1
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convolutive
说明: 该程序为盲信号中的盲卷积程序,给大家个参考(The program for the blind signal in the blind deconvolution process, give us a reference)
- 2010-04-30 00:14:05下载
- 积分:1
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34
说明: Wireless Sensor Networks WSNs Modified LEACH
- 2015-04-13 20:08:47下载
- 积分:1
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wave
it is used to remove noise from images
- 2009-04-15 23:05:59下载
- 积分:1