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schx4_4
蜂窝数字分组数据网matlab仿真实验蜂窝数字分组数据网(Cellular digital packet data network matlab simulation experiment)
- 2013-04-15 10:32:36下载
- 积分:1
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Dyn5
matlab simulation about DY5 transformer
- 2012-01-09 03:59:48下载
- 积分:1
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adaptivemedianfilter
matlab自适应中值滤波器,程序代码,试验图片与结果图。(matlab adaptive median filter, the program code, test images and the results of Fig.)
- 2010-01-30 23:28:25下载
- 积分:1
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watermarking
This code reg.video water marking
- 2014-09-21 14:05:27下载
- 积分:1
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Laplace
传统的短时谱估计语音增强算法通常假设语音谱分量相互独立,没有考虑语音谱分量间的相关性。针对这
一问题,该文提出一种新的基于多元Laplace分布模型的短时谱估计算法。首先,假设语音的离散余弦变换(DCT)
系数服从多元Laplace分布,以此利用谱分量间的相关性;在此基础上,利用多元随机矢量的高斯尺度混合模型表
示,推导得到语音DCT系数矢量的最小均方误差(MMSE)估计的解析表达式;并进一步推导了基于该分布模型的
语音存在概率,对最小均方误差估计子进行修正。实验结果表明,该算法在抑制背景噪声和减少语音失真等方面优
于传统的语音增强方法。(The spectral components of speech are usually assumed to be independent in traditional short-time
spectrum estimation, which is not the case in practice. Tosolve this problem, a new speech enhancement algorithm
with multivariate Laplace speech model is proposed in this paper. Firstly, the speech Discrete Cosine Transform
(DCT) coefficients are modeled by a multivariate Laplace distribution, so the correlations between speech spectral
components can be exploited. And then a Minimum-Mean-Square-Error (MMSE) estimator based on the proposed
model is derived using a Gaussian scale mixture representation of random vectors. Furthermore, the speech
presence uncertainty with the new model is derived to modify the MMSE estimator. Experimental results show
that the developed method has better noise suppression performance and lower speech distortion compared to the
traditional speech enhancement method. )
- 2014-01-18 10:44:40下载
- 积分:1
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MATLAB-CODE
ultra wide band frequency transmission between two channels with high data transfer rate
- 2015-01-17 15:28:28下载
- 积分:1
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isctest
matlab程序,一种快速ICA算法,用于混合信号盲分离,可应用于通信系统信号处理(matlab program, a fast ICA algorithm for blind separation of mixed signals, signal processing can be used in communication systems)
- 2013-11-08 19:12:37下载
- 积分:1
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54321
经由HSI彩色空间转换、Canny算子边缘检测、索书号边缘点彩色分割等步骤的索书号文字图像分割(内含源文件和所用图像)(HSI color space conversion via, Canny operator edge detection, image segmentation Call Call text color segmentation edge point steps (including source files and the image))
- 2014-01-06 20:26:52下载
- 积分:1
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OFDM_signals
Orthogonal Frequency Division Multiplexing(OFDM) signal simulation(Orthogonal Frequency Division Multiplex ing (OFDM) signal simulation)
- 2007-04-12 21:48:07下载
- 积分:1
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hornfields
field distribution of a horn antenna 2D
- 2011-10-01 17:59:04下载
- 积分:1