-
Edward_MATLAB_Application_of_Engineering
Edward-MATLAB原理与工程应用，一本关于MATLAB应用的书，非常好。Edward B.Magrab 编著(Application of Engineering
)
- 2010-10-05 10:15:35下载
- 积分：1
-
HW9
火箭升空后软着陆的开发代码，对后来者有启示作用(The rocket development code soft landing)
- 2014-12-28 01:11:28下载
- 积分：1
-
FDM-any-accuracy
电磁波、声波或地震波等数值模拟中常常会用到有限差分法，但是很多文章都只是泛泛而谈时间2阶，空间4阶等等如何用公式，本文给出了任意阶精度的泰勒展开与迭代公式。(Numerical simulation of electromagnetic, acoustic or seismic waves will often use the finite difference method, but many articles are just generalities time two bands, space, etc. How to order 4 formula, this paper presents the accuracy of any order Taylor expansion and iterative formula.)
- 2015-01-31 00:10:02下载
- 积分：1
-
DFT
Transformada discreta de Fourier
- 2013-11-18 23:31:07下载
- 积分：1
-
OFDM
OFDM下行的仿真1、产生要传输随机数；
2、进行调制；
3、串并转换；
4、进行IFFT操作（代码中有用到共轭对称向量的IFFT为实数进行简化计算）；
5、增加循环前缀；
6、并串转换；
7、输出前滤波；
8、增加信道噪声（加性高斯白噪声）；
9、接收端串并转换；
10、去除循环前缀；
11、进行FFT变换；
12、信号解调；
13、误比特率计算；
(OFDM downlink simulation 1, have to be transmitted random number 2, the modulation 3 series and transforms 4, the IFFT operation (code useful to conjugate symmetric vector of the IFFT of real numbers to simplify calculations) 5, the increase in circulating prefix 6, and string conversion 7, the output before the filter 8, increased channel noise (additive white Gaussian noise) 9, the receiver string and conversion 10, removal of cyclic prefix 11, the FFT transform 12 , the signal demodulation 13, bit error rate )
- 2010-10-20 10:18:43下载
- 积分：1
-
MATLAB6.5.1
一篇很好的学习Matlab的电子书籍，推荐(Matlab a good learning experience of e-books, recommend)
- 2009-04-30 12:03:48下载
- 积分：1
-
psoshj
pos算法，微粒群优化算法解决函数优化问题，程序就是解决函数优化问题。(pos algorithm, particle swarm optimization algorithm to solve the function optimization problem, the procedure is to solve function optimization problems.)
- 2013-11-07 15:13:53下载
- 积分：1
-
bp
说明： 实现BP神经网络建模，并绘制误差曲线，包括实现数据的归一化与反归一化(Achieve BP neural network modeling and rendering error curve, including data normalization and anti-normalization)
- 2020-11-02 14:39:54下载
- 积分：1
-
vi2
This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet.
For eg:-wavelets can be haar, db1, db2,dmey...............
Decomposition can be viewed in figure.
(Please note that select 256X256 image for better result.)
Then compression can performed,
PERFL2 give compression score.
Then reconstruction can be performed.
Each decompsition we can choose different threshold values.
For each threshold value we can calculate mse,psnr,pq(picture quality),
bit ratio etc. To get pq install pqs function . (This program compress and recostruct using wavelets. We can select level of decomposition (here maximum 4 levels are given) of images using selected wavelet.For eg:-wavelets can be haar, db1, db2, dmey ........ ....... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score.Then reconstruction can be performed.Each decompsition we can choose different threshold values . For each threshold value we can calculate mse, psnr, pq (picture quality), bit ratio etc. To get pq install pqs function.)
- 2007-10-24 16:47:31下载
- 积分：1
-
seismic response_spectrum
说明： 求地震动的加速度反应谱 速度谱 位移谱(Acceleration response spectrum for ground motion velocity spectrum displacement spectrum)
- 2019-04-23 10:26:33下载
- 积分：1
