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decodeProbDomain
prob domain decoding technique using matlab m-file
- 2010-11-24 22:14:55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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tououyingjuzhen
投影重建中一种据算投影矩阵的方法，用于代数迭代重建中(According to calculate a projection reconstruction projection matrix method Used for algebra iterative reconstruction)
- 2011-12-05 16:55:42下载
- 积分：1
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graygrad
计算二维灰度-梯度直方图，很好用，特别好，啦啦啦(Calculate two-dimensional grayscale-gradient histogram, very good use, especially good, la la la)
- 2018-06-02 16:42:41下载
- 积分：1
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BFGS
拟牛顿法和最速下降法(Steepest Descent Methods)一样只要求每一步迭代时知道目标函数的梯度。通过测量梯度的变化，构造一个目标函数的模型使之足以产生超线性收敛性。这类方法大大优于最速下降法，尤其对于困难的问题。另外，因为拟牛顿法不需要二阶导数的信息，所以有时比牛顿法(Newton s Method)更为有效。如今，优化软件中包含了大量的拟牛顿算法用来解决无约束，约束，和大规模的优化问题。(The quasi-Newton method and the Steepest Descent Methods only require that each step iterations know the gradient of the objective function. By measuring the change of the gradient, constructing a model of the objective function is sufficient to produce superlinear convergence. This method is much better than the steepest descent method, especially for difficult problems. In addition, because the quasi-Newton method does not require information on the second derivative, it is sometimes more effective than the Newton s Method. Today, the optimization software contains a large number of quasi-Newton algorithm used to solve the unconstrained, constraint, and large-scale optimization problems.)
- 2017-05-05 10:28:29下载
- 积分：1
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GMM_background_src
基于有限混合高斯模型的数据分类
1、使用基于有限高斯混合模型的EM算法对数据样本进行归类
2、使用C++或者Matlab语言编程环境实现该算法，并用给定的数据包对算法的正确性进行检验
(Gaussian mixture model based on limited data classification 1, using the finite Gaussian mixture model based on EM algorithm to classify the data samples 2, using the C++ or Matlab programming environment to realize the algorithm, and with a given data packet to the algorithm correctness testing )
- 2010-08-24 15:12:26下载
- 积分：1
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Tx2_Rx1
采用两发一收的空时分组码经过瑞丽信道后的性能仿真。(The use of a collection of two space-time block codes through Ruili performance after channel simulation.)
- 2009-04-17 20:21:18下载
- 积分：1
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wimaxtxsimulation
wimax uplink simulation in matlab
- 2009-06-14 00:22:31下载
- 积分：1
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12
说明： 核聚类算法的一个不错的matlab程序，用了一下可以用(kernal cluster)
- 2012-04-17 00:11:14下载
- 积分：1
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101
常胜将军 :在计算机后走的情况下，要想使计算机成为“常胜将军”，必须找出取 关键。根据本题的要求枷以总结出，后走一方取子的数量与对方刚才一步取子的数量之和等于，就可以保证最后一个子是留给先取子的那个人的。(Ever Victorious General: On the computer where to go, in order to make the computer become " Ever Victorious generals" must be taken to find the key. According to the requirements of this title thoughts to conclude that one party to take the child away after the number of step with each other just to take the child and is equal to the quantity, we can ensure that a child is left to the first final to take the child of that individual.)
- 2009-11-15 21:31:07下载
- 积分：1
