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Psd_091024I
说明: Welch法功率谱密度 Psd自功率谱
是用改进的平均周期图法来求随机信号的自功率谱估计
采用信号重叠分段,加窗函数和fft算法等计算一个信号的自功率谱估计(PSD)
- 2010-04-26 21:55:56下载
- 积分:1
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gmdh_example
GMDH_main为GMDH主函数;
variable_Combin为输入层初始变量选为x1,x1^2,x1*x2,x2^2,x2时的输入变量矩阵值
variable_select计算X_train训练输入数据,Y_train训练输出数据,X_test测试输入数据,Y_test测试输出数据
Combin为求变量的两两组合
Sym_Combin为求符号变量的两两组合
PE_AIC求每层各神经元的参数估计W,及训练数据在参数估计后估计的输出out_train,测试数据在参数估计后的估计输出out_test,还有与实际比较的误差平方和PESS, 以及准则值AIC
sym_representation求最终的输入输出符号表达式
Criterion_value求准则值
(GMDH_main main function for the GMDH variable_Combin initial variables chosen for the input layer, x1, x1 ^ 2, x1* x2, x2 ^ 2, x2 the value of the input variable matrix calculation X_train variable_select training input data, Y_train training output data, X_test test input data, Y_test for the sake of the test output data Combin pairwise combination of variables for the sake of symbolic variables Sym_Combin pairwise combinations PE_AIC neurons find each parameter estimation of the W, and after the training data is estimated in the estimation of output out_train, test data After the parameter estimates of the output estimated out_test, also compared with the actual sum of squared errors PESS, as well as the final criterion value AIC sym_representation seek the input and output values of symbolic expressions Criterion_value find criteria)
- 2011-04-27 15:32:58下载
- 积分:1
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cx4_3
振动信号预处理方法_____滑动平均法消除趋势项(_____ Vibration signal preprocessing method trend term moving average method to eliminate)
- 2011-05-06 16:13:40下载
- 积分:1
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with-fuzzy
It is a novel fuzzy based sleep mode technique for WSN that turns off the ONUs
(placed at the customer premises) when certain traffic conditions are verified. The objective is to
achieve an improved energy efficiency without impacting too much the Quality of Service
perceived by end-users. The whole operation is managed at the central Node and the length of the sleep time periods is computed employing a statistical method.
- 2014-10-27 15:56:51下载
- 积分:1
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ff_5
ackley function with firefly algorithm
- 2015-02-01 05:28:42下载
- 积分:1
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jubu
图像局部配准,利用matlab编写实验程序。图像自选。(Local image registration, the use of experimental procedures for the preparation of matlab. Image-on-demand.)
- 2007-09-12 23:32:41下载
- 积分:1
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pictureprocessing
该程序可以实现图片的拖拽,放大和缩小等简单的处理。(The program can drag images, zoom in and out such simple treatment.)
- 2010-12-09 21:45:36下载
- 积分:1
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BFGS
最优化算法之一,拟牛顿法,亦称BFGS法,用于求解极值问题,具有二次收敛性(One of the most optimization algorithms, quasi-Newton method, also known as BFGS method for solving extremum problems, with quadratic convergence)
- 2010-12-26 21:49:39下载
- 积分:1
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uncode
不同调制方法,和不同编码方式的信道仿真比较(different modulation methods, coding and different forms of channel simulation comparison)
- 2007-05-21 15:46:10下载
- 积分:1
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two_layer_model
地震数据处理中, 建立速度模型。
根据需求改变参数即可。(Seismic data processing speed of the model established in accordance with changes in demand parameters.)
- 2014-11-16 20:50:37下载
- 积分:1