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szfxsy1
实验一：三次样条插值（P56，例6）
一、实验目的：
1) 掌握三次样条插值的运用
2) 了解拉格朗日插值在高次上的误差
二、实验环境：Matlab6.5
三、实验内容：
1) 给定函数f(x)=1/(1+x2)，-5<=x<=5，节点xk=-5+k，(k=0,1,2…10)，用三次样条插值求S10(x)，S10’(-5)=f’(-5)，S10’(5)=f’(5)。
2）作原函数f(x)，拉格朗日插值函数Ln(x)，三次样条差值函数Sn(x)。画出三个函数的图像，比较它们的区别。
(Experiment I: cubic spline interpolation (P56, cases of 6) First, the experiment was: 1) cubic spline interpolation to master the use of 2) understanding of Lagrange interpolation in high-error second, experimental environment: Matlab6 .5 c, experimental elements: 1) a given function f (x) = 1/(1+ x2),-5 <= x <= 5, node xk =- 5+ k, (k = 0,1,2 ... 10), using cubic spline interpolation for S10 (x), S10 (-5) = f (-5), S10 (5) = f (5). 2) for the original function f (x), the Lagrange interpolation function Ln (x), cubic spline difference function Sn (x). Draw the three functions of images, compare the difference between them.)
- 2009-01-18 23:06:15下载
- 积分：1
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LMS
滤波器设计，对一给定随机信号进行滤波。一个较为完整的示例，包含信号的产生与分析过程(Filter design, for a given random signal filtering. A more complete example, including the process of signal generation and analysis)
- 2010-12-01 18:57:49下载
- 积分：1
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rice-and-rayleigh
瑞利衰落和莱斯衰落信道的仿真程序，能够统计出误码率与信噪比的仿真图(a simulation program for raileigh and rice channel)
- 2020-10-23 17:17:22下载
- 积分：1
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ofdm2
orthogonal division multiplixing(ofdm) is a new scheme used in wireless communication systems its also called multicarrier system and achieved this. cyclic prefix is used to minimize the intersymbol interference(ISI) and intercarrier interference
- 2014-01-17 15:12:25下载
- 积分：1
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Target
遗传算法程序，很实用，高人编程。有详细的程序注释，可以供参考(It compares the effects of early warning using BP Neural Network before and after the rank sum
test, sampling the listed companies in Shenzhen and Shanghai SecurityMarkets. The results showthat BP neural net-
work model has good application value to the warning for financial distress of China’s listed companies. Especially,
)
- 2010-09-30 21:39:21下载
- 积分：1
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3F¨
matlab图象处理函数(matlab imagery processing function matlab imagery processing
function matlab imagery processing function matlab imagery processing
function )
- 2006-06-04 09:42:02下载
- 积分：1
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particlefilter
粒子滤波示例代码~粒子滤波器算法，用于参数优化和状态估计~(Particles filters)
- 2012-04-27 20:33:51下载
- 积分：1
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hybridSIREKF
To estimate the input-output mapping with inputs x
％ and outputs y generated by the following nonlinear,
％ nonstationary state space model:
％ x(t+1) = 0.5x(t) + [25x(t)]/[(1+x(t))^(2)]
％ + 8cos(1.2t) + process noise
％ y(t) = x(t)^(2) / 20 + 6 squareWave(0.05(t-1)) + 3
％ + time varying measurement noise
％ using a multi-layer perceptron (MLP) and both the EKF and
％ the hybrid importance-samping resampling (SIR) algorithm. (To estimate the input-output mapping with inputs x and outputs y generated by the following nonlinear, nonstationary state space model: x (t+ 1) = 0.5x (t)+ [25x (t )]/[( 1+ x (t)) ^ (2)]+ 8cos (1.2t)+ process noise y (t) = x (t) ^ (2)/20+ 6 squareWave (0.05 (t-1 ))+ 3+ time varying measurement noise using a multi-layer perceptron (MLP) and both the EKF and the hybrid importance-samping resampling (SIR) algorithm.)
- 2007-09-30 11:09:43下载
- 积分：1
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AES
ES is a symmetric block cipher.
The same key is used to encrypt and decrypt the message.
The plain text and the cipher text are the same size.
The Aes algorithm works as follows:
Convert to state array: This step consists of conversion on the matrix onto a state array operating with the sbox.
Transformations (and their inverses)
AddRoundKey: Computing the round key for each round.
SubBytes: Substituting by bytes from Sbox.
ShiftRows: Shifting of rows.
MixColumns: Exor operation on columns.
Key Expansion: Expanding the key to be used on next round.
- 2013-04-30 00:03:37下载
- 积分：1
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fastica
FastICA Code. Independent Component Analysis code for signal extraction
- 2010-07-09 19:18:16下载
- 积分：1
