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csphantom
CSPHANTOM is a test phantom tailored to compressed sensing MRI algorithm development. It is designed to be non-sparse under a gradient transform and to contain features difficult to reproduce with partial Fourier sampling. We hope that this phantom can be used to evaluate the quality and accuracy of compressed sensing MRI reconstruction algorithms in the noise-free domain so that real-world applications of CS MRI may be improved.
- 2010-11-22 15:25:59下载
- 积分：1
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shuiyin
基于matlab的数字水印防伪技术，其中能够实现数字水印嵌入与提取(Based on the matlab digital watermark anti-counterfeiting technology, which can realize the digital watermark embedding and extraction)
- 2012-05-11 23:31:21下载
- 积分：1
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pso-bp
粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。PSO 算法属于进化算法的一种，和模拟退火算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。粒子群算法是一种并行算法。
BP（Back Propagation）神经网络是1986年由Rumelhart和McCelland为首的科学家小组提出，是一种按误差逆传播算法训练的多层前馈网络，是目前应用最广泛的神经网络模型之一。BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。它的学习规则是使用最速下降法，通过反向传播来不断调整网络的权值和阈值，使网络的误差平方和最小。BP神经网络模型拓扑结构包括输入层（input）、隐层(hidden layer)和输出层(output layer)。(Particle swarm optimization, also known as particle swarm optimization (Particle Swarm Optimization), abbreviated as PSO, is a new evolutionary algorithm developed in recent years (Evolutionary Algorithm- EA). Kind, and simulated annealing algorithm PSO algorithm is similar evolutionary algorithms, it is also starting a random solution, through an iterative search for the optimal solution, which is also used to uate the quality through fitness solution, but it is simpler than genetic algorithm rules It has no genetic algorithm " crossover" (Crossover) and " variant" (Mutation) operation, which by following the current search to find the optimal value to the global optimum. This algorithm is its easy implementation, high accuracy, fast convergence, etc. attracted academic attention and show its superiority in solving practical problems. PSO algorithm is a parallel algorithm. BP (Back Propagation) neural network is a 1986 team of scientists headed by Rumelhart and McC)
- 2020-10-29 22:19:56下载
- 积分：1
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74096190ziyuanfenpei1
对OFDM系统进行自适应分配，主要对子载波，比特和功率进行分配，已达到降低发射端功率的目标。(Adaptive Allocation for OFDM systems, the main pair carrier, bit, and power distribution, has reached the goal of reducing the transmitter power.)
- 2011-01-09 17:13:41下载
- 积分：1
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fuzzy-control-table-line-calculation
离散论域模糊控制表的离线计算.已知单变量两维输入，一维输出模糊控制器，其两维输入为E，EC，一维输出为I，论域均为E，EC，I∈{-6，-5，-4，-3，-2，-1，0，1，2，3，4，5，6}，E的论域划分为{NB，NM，NS，NZ，PZ，PS，PM，PB}，共8个模糊子集(Discrete domain of fuzzy control table offline computing. Known univariate two-dimensional input, one-dimensional output fuzzy controller, the two-dimensional input of E, EC, one-dimensional output as I, on the field are E, EC, I ∈ {-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6}, E of the domain is divided into {NB, NM, NS, NZ, PZ , PS, PM, PB}, a total of eight fuzzy subset)
- 2013-07-24 04:19:32下载
- 积分：1
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cooperative
An ad-hoc network with a sender, a destination and a third station act-
ing as a relay is analysed. The channels are modelled containing thermal
noise, Rayleigh fading and path loss. Di® erent combining methods and di-
versity protocols are compared. The amplify and forward protocol shows a
better performance than the decode and forward protocol, unless an error
correcting code is simulated. To combine the incoming signals the chan-
nel quality should be estimated as well as possible. Information about the
average quality shows nice bene¯ ts, and a rough approximation about the
variation of the channel quality increases the performance even more.
- 2015-02-27 04:05:00下载
- 积分：1
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svm
神经网络向量机实现算法！(Neural network vector machine algorithm!)
- 2007-08-04 10:28:33下载
- 积分：1
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PosData
Wifi received signal strength data (RSS,x-y cordinates) which can be used in a MATLAB post processing positioning algorithm
- 2015-01-20 20:18:42下载
- 积分：1
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aybook.cn_matsyysjd0130
matlab基础教程，从环境界面到最终的matlab应用(Matlab based tutorial the matlab interface from the environment to the final application)
- 2012-11-20 16:07:14下载
- 积分：1
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content_based_image_recongnition
基于内容的图像识别-支持向量机方法-8分类(Content-based image recognition- classification of support vector machines-8)
- 2010-12-11 19:56:59下载
- 积分：1
