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prog6
Code division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, which is where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth). To permit this to be achieved without undue interference between the users CDMA employs spread-spectrum technology and a special coding scheme (where each transmitter is assigned a code). Each user in a CDMA system uses a different code to modulate their signal. Choosing the codes used to modulate the signal is very important in the performance of CDMA systems. The best performance will occur when there is good separation between the signal of a desired user and the signals of other users.
- 2014-09-18 19:33:27下载
- 积分：1
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sandychen
偏微分方程数值解法的MATLAB源程序，非常全面。(Numerical solution of partial differential equations in MATLAB source, very comprehensive.)
- 2010-01-19 14:00:55下载
- 积分：1
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x2em
实现对给定的数据服的拟合优度的检验，内有详细程序说明(To achieve a given data service goodness of fit test, with detailed description of the procedures)
- 2013-10-08 10:04:28下载
- 积分：1
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maxmind
模式识别最大最小距离算法实现，matlab实现的，可以直接运行(Pattern recognition of maximum and minimum distance algorithm to achieve the Matlab)
- 2015-03-12 16:52:29下载
- 积分：1
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AR 法模拟风速时程
说明： 采用AR法进行的风速时程模拟，数据运算正常，可用于调试和改进。(The wind speed time history simulation with AR method has normal data operation and can be used for debugging and improvement.)
- 2020-02-17 16:27:40下载
- 积分：1
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matlabSourcecodeForFingerprint
用matlab做的指纹提取的源码，具有很好的借鉴作用。(Using matlab to do the fingerprint extracted from source code, with a very good reference.)
- 2009-03-26 23:29:15下载
- 积分：1
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localhisteq3
这是直方图均衡化（改进后）的MATLAB程序(This is histogram equalization (improved) MATLAB)
- 2005-04-29 15:40:10下载
- 积分：1
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Biomedical_Image_Processing
Image Analysis Problems in Bioinformatics are very much helpful to Image Processing Domain. It includes real-life issues/problems on how to handle and analyze images. This toolkit provides useful and efficient codes for image analysis in bioinformatics.
- 2010-02-26 13:54:52下载
- 积分：1
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alg-over-data1
calssification algorithmqq
- 2014-11-26 22:54:17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
