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Matlab_Code
fast GA algorithm- very very fast implementation
- 2009-06-14 18:00:43下载
- 积分:1
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123426
注水算法是根据某种准则,并根据信道状况对发送功率进行自适应分配,通常是信道状况好的时刻,多分配功率,信道差的时候,少分配功率,从而最大化传输速率。本文运用matlab通过对注水算法在mino系统中的三种不同的情况下进行了仿真,比较出在小信噪比时,相同信噪比下利用CSI的功率注水算法获得容量优于未知CSI的平均功率分配算法;相同容量下已知CSI信噪比比未知CSI时的信噪比小3dB.当信噪比增大到一定程度时,功率注水算法所获得的信道容量将收敛到平均功率分配的信道容量。(Water flooding algorithm is based on certain standards, and according to the channel condition to adaptive allocation of sending power, usually is a good moment, channel situation more distribution power, channel is poor, less power distribution, so as to maximize the transmission rate. This paper USES matlab based on water flooding algorithm in Austin system of three different cases are simulated and compared in small SNR, under the same SNR use CSI power allocation algorithm for capacity is superior to the average power allocation algorithm of unknown CSI Same capacity known CSI signal-to-noise ratio than the unknown CSI small signal-to-noise ratio of 3 db. When the signal-to-noise ratio increases to a certain degree, the power allocation algorithm for channel capacity will converge to the average power distribution channel capacity.
)
- 2013-09-03 20:28:15下载
- 积分:1
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DC_pwm
任意波形源的pwm信号生成电路控制桥式结构 其中上面是双极式调制pwm考虑了上下桥臂不能同时开通(加了延迟);下面是受限单极式调制pwm信号发生器(Pwm arbitrary waveform signal generating circuit bridge structure wherein the control source is a bipolar modulator pwm at the upper and lower arms can be considered simultaneously opened (with delay) following is limited single modulator pwm signal generator)
- 2014-06-19 17:36:19下载
- 积分:1
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matrix-operation-of-junior-students
MATLAB 的一些运算,关于矩阵以及一些例子。初学者专用,全面专用快速(Some operations on the matrix, as well as some examples. Beginners dedicated, full-specific rapid)
- 2009-05-22 08:45:23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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nihe
这是数学算法中拟合算法的程序 联合开发网 - pudn.com
- 2012-04-17 19:14:26下载
- 积分:1
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Lagrange_for_2DOF
二自由度机械臂动力学解算matlab程序(2DOF serial manipunation dynamic programming code by matlab)
- 2014-10-29 15:52:12下载
- 积分:1
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track-asso-based-on-EMD
完成基于EMD及灰关联的航迹关联,该算法相比仅使用灰关联的算法正确率要高。(EMD completion of association and Grey' s track-based algorithm compared to Grey' s algorithm uses only the correct rate is higher.)
- 2015-03-31 10:10:22下载
- 积分:1
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space_time_coding
To encode an input stream into a specified space time block code.
- 2010-08-06 22:05:57下载
- 积分:1
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DlgOpenFile
说明: 有关matlab仿真中,图形用户界面的文章。通俗易懂。(On the matlab simulation, graphical user interface of the article. User-friendly.)
- 2008-09-11 15:00:02下载
- 积分:1