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wavelet
图像频域变换源代码，只针对该应用领域内的同行用于学术研究，不能用于商业活动！！(Image Transferation original codes)
- 2010-07-05 11:46:49下载
- 积分：1
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1
说明： 认知无线电技术的提出是为提高频谱利用率，而认知无线实现的关键技术是频谱感知，众所周知协作检测提高了衰落环境中认知用户系统检测的性能，该文章是基于协作检测提出新的检测方案，利用了双门限方法提高了系统性能，兼顾带宽有限和增强性能两个方面，是基于门限检测的协作检测性能优化的前提。对以后门限优化协作检测非常有用。(In this paper, we employ a double threshold method in energy detector to perform spectrum sensing, while a fusion center in the cognitive radio network collects the local decisions and observational values of the secondary users, and then makes the final decision to determine whether the primary user is absence or not. Simulation results will show that the spectrum sensing performance channels is improved significantly under the proposed scheme as opposed to the conventional method.)
- 2010-04-14 21:02:35下载
- 积分：1
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development-risk-prediction
本文基于BP神经网络应用于预测的原理，提出预测步骤及预测可行性，探讨建立基于BP神经网络的预测模型的关键技术，包括样本的选取与预处理、输入输出变量的选取、隐层节点数的确定、初始权值和阈值的选取、激活函数、训练算法与参数的选取，最后建立合理的网络模型；结合住宅市场的实际情况，建立两类BP 神经网络预测模型：基于时间序列的趋势预测模型以及基于影响因素的回归预测模型，即分别采用神经网络趋势预测和回归预测的思路，把住宅市场的供给、需求与房价的历年数据以及其影响因素的数据分别作为学习样本，建立预测模型，进行预测。(Real estate development risk prediction
)
- 2011-04-22 10:40:30下载
- 积分：1
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transformator-parameters
calculation of transformator parameters by Mfile in Matalb software (power engineering field)
- 2013-07-18 16:51:14下载
- 积分：1
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Experimental-transfer-function
传递函数MATLAB实验传递函数MATLAB实验传递函数MATLAB实验(Experimental transfer function transfer function MATLAB MATLAB MATLAB experiment experimental transfer function)
- 2011-07-19 21:41:54下载
- 积分：1
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SM_STBC_4x4_HQT
Ky thuat truyen dan MIMO.
- 2014-12-20 20:11:10下载
- 积分：1
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LQR
单级倒立摆LQR控制，通过LQR控制，为了使系统具有快速的响应，对Q矩阵中的参数Q11和Q33进行调整。(Linear Quadratic Regulator——LQR，adjust
the parameter of the Q，fasting the response rate)
- 2015-01-12 01:00:26下载
- 积分：1
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xinhachuligongjuxiang
工具箱提供了各种常用的信号处理，图象处理函数，例如小波分析，平滑滤波等等．非常便于学习和直接调用．(Toolbox offers a variety of commonly used signal processing, image processing functions, such as wavelet analysis, filtering and so on. Very easy to learn and direct calls.)
- 2007-07-22 22:16:07下载
- 积分：1
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MATLAB
这是关于用MATLAB实现遗传算法程序的原理介绍，包括也选择、交叉、变异等算子的程序。(This is about using MATLAB genetic algorithm program to achieve the principle of description, including also selection, crossover and mutation operators of the program.)
- 2010-12-10 11:31:26下载
- 积分：1
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wavlet_denoise
说明：
此函数用于研究Mallet算法及滤波器设计
此函数用于消噪处理
分解的高频系数采用db9较好,即它的消失矩较大
分解的有用信号小波高频系数基本趋于零
对于噪声信号高频分解系数很大，便于阈值消噪处理(this function for research Mallet filter algorithm design and function for Denoising decomposition of high-frequency coefficients Terminal better that it's vanishing moments larger decomposition of useful signal, high-frequency coefficients tends to zero for high-frequency signal noise decomposition coefficient great ease threshold Denoising)
- 2006-04-03 21:17:39下载
- 积分：1
