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chapter3
MATLAB+神经网络，BP神经网络源码(MATLAB+ neural network
)
- 2014-09-15 22:43:30下载
- 积分：1
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legendre_associated_normalized
evaluates the associated Legendre functions P(N,M)(X), normalized for use in spherical harmonic calculations
- 2013-02-09 06:13:58下载
- 积分：1
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Jacobi
牛顿迭代，雅克比,求解非线性方程组 数值分析
MATLAB相结合(Jacobi NEWTON)
- 2012-02-20 20:24:29下载
- 积分：1
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谱分析MATLAB实验课
应用背景
信号是无限长的，而在进行信号处理时只能采用有限长信号，所以需要将信号“截断”。在信号处理中，“截断”被看成是用一个有限长的“窗口”看无限长的信号，或者从分析的角度是无限长的信号x(t)乘以有限长的窗函数w(t),由傅里叶变换性质可知
如果x(t)是频宽有限信号，而w(t)是频宽无限函数，截断后的信号也必是频宽无限信号，从而产生所谓的频谱泄露。
关键技术
用MATLAB编程绘制各种窗函数的形状
2、用MATLAB编程绘制各种窗函数的幅度响应
3、绘制矩形窗的幅频响应，窗长度分别为：N=10，N=20，N=50，N=100
4、已知周期信号x(t)=0.75+3.4cos2πft+2.7cos4πft+1.5sin3.5πft+2.5sin7πft，其中f=Hz，若截断时间长度分别为信号周期的0.9和1.1倍，试绘制和比较采用下面窗函数提取的x（
- 2022-03-19 07:15:04下载
- 积分：1
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Genetic-Annealing
一个遗传算法工具箱，很好用的。一种改进的遗传算法(A genetic algorithm toolbox, very good use. An Improved Genetic Algorithm)
- 2009-11-13 23:07:26下载
- 积分：1
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Exp-1
matlab 的基带仿真程序，使用二进制信源。加高斯白噪声(the matlab baseband emulator)
- 2013-03-19 22:04:50下载
- 积分：1
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WPA
matlab在信号去噪过程中，运用小波包方法对信号进行降噪处理(matlab signal de-noising process, the use of the method of wavelet packet noise reduction processing on the signal)
- 2020-10-28 22:39:58下载
- 积分：1
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FTN
该代码主要实现了FTN的编程，包括图形的呈现，FTN基于根升余弦波形的行程(This code mainly implements FTN programming)
- 2018-04-27 08:11:52下载
- 积分：1
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disturbance_ST
产生几种典型的电能质量扰动信号源及其该信号源的ST变换(Produced several typical power quality disturbance source and the transformation of the source ST)
- 2010-09-17 20:14:35下载
- 积分：1
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Content
A multiple-input multiple-output (MIMO) communication system combined with the orthogonal frequency division multiplexing (OFDM) modulation technique can achieve reliable
high data rate transmission over broadband wireless channels. Channel state information for both single-input single-output (SISO) and MIMO systems based on pilot aided arrangement is
investigated in this paper. The estimation of channel at pilot frequencies with conventional Least Square (LS) and Minimum Mean Square (MMSE) estimation algorithms is carried out
through Matlab simulation. The performance of MIMO OFDM and SISO OFDM are evaluated on the basis of Bit Error Rate (BER) and Mean Square Error (MSE) level.
- 2011-03-24 01:15:07下载
- 积分：1
