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MMSE
In this letter, we derive a minimum mean squared
error (MMSE) optimal estimator for clean speech spectral am-plitudes, which we apply in single channel speech enhancement.
As opposed to state-of-the-art estimators, theoptimal estimator
is derived for a given clean speech spectral phase. We show that
the phase contains additional information that can be exploited
to distinguish outliers in the noise from the target signal.
- 2013-02-11 00:41:56下载
- 积分：1
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sanjiao
一个产生PFM的simulink模型，可以改变占空比与频率(generating repeating sequence)
- 2021-01-12 00:38:49下载
- 积分：1
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pca
关于matlab主元分析的一个简单的实例，可供初学者参考学习。(Matlab PCA on a simple example of reference for beginners to learn.)
- 2007-10-02 10:10:34下载
- 积分：1
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CDMAfangzhenyufenxi
选取CDMA通信系统中的接入信道部分进行仿真与分析。首先，通过学习相应的理论知识，熟悉接入信道实现的过程，对每一步的原理有了较深的理解，同时，也对MATALB软件进行熟悉和了解，对MATLAB软件中的SIMULINK部分及其内部的CDMA模块用法和参数设置进行熟悉，然后运用MATLAB软件对接入信道部分进行设计，并逐步地对各个模块进行分析、仿真与验证。目的是通过毕业设计工作熟悉现代无线通信系统的基本构成与基本工作原理(CDMA communication system to select the access channel simulation and analysis of parts. First of all, by learning the theory of knowledge, familiar with the access channel to achieve the process, with each step deeper understanding of the principle, at the same time, but also familiar with the software MATALB and understanding of the MATLAB software and its internal part of the SIMULINK use of the CDMA module and parameter settings are familiar with, and then use MATLAB software to access parts of the design of channel and step by step analysis of each module, simulation and verification. The purpose of design work through graduate familiar with the modern wireless communication systems constitute the basic and fundamental principle,)
- 2009-04-16 12:24:20下载
- 积分：1
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msk
this file is matlab code for simulating msk modulation
- 2012-04-06 19:42:59下载
- 积分：1
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DCTlicheng
研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特
性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。
虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分：1
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FixedWingUAV
一个小型固定翼无人机的建模与仿真程序，带有图像显示和路径规划。(The design and simulation program of small fixed wing unmanned aerial vehicle (UAV) designed abroad has image display and path planning.)
- 2021-01-19 14:08:43下载
- 积分：1
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Image-compression-using-wavelet-transform-in-matl
the source code used for image compression using wavelet transform. to use this codes u have to first convert RGB image to grayscale and also its colourmap
- 2014-11-30 10:50:16下载
- 积分：1
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vblast-ook---ZF
在光通信中分层空时码程序,使用OOK进行调制，译码使用迫零算法。(wireless communication vblase matlab procedure)
- 2014-05-04 09:46:59下载
- 积分：1
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biosig4octmat-2.88
Matlab 脑电信号转mat数据工具包，脑电研究的福音。(EEG data transfer mat Matlab toolkit gospel EEG studies.)
- 2021-03-10 15:29:27下载
- 积分：1
