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845
对电路板的图像进行分割，可以提取电路板中的目标物，以对电路板进行检测。文章使用K均值聚类算法完成对电路板图像的分割，针对传统的K均值聚类算法的不足，提出了使用直方图波形的有效波峰个数来确定K值的大小，并通过使用一种比传统的绝对误差的表示更简洁的表达式，达到了快速分割的目的。对一些电路板图像分割的实验结果表明，文章的方法能够根据目标物的数目有效的确定K值的大小，且比传统的K均值算法减少了运算量及计算时间。
(On the circuit board image segmentation, to extract the target board to the circuit board for testing. Article using the K means clustering algorithm to complete the circuit board image segmentation, the traditional K-means clustering algorithm, the paper proposes the effective use of histogram peak wave number of K values to determine the size, and by using a ratio of absolute error of the traditional expression that is more concise, to the fast segmentation. For some circuit board image segmentation results show that the method can be according to the article the number of valid target value to determine the size K, and K-means algorithm than the traditional reduced computation and computing time.)
- 2010-05-10 08:14:40下载
- 积分：1
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chapter8
神经网络理论与matlab7实现 源代码(Neural Network Theory and realization of the source code matlab7)
- 2010-01-11 10:34:11下载
- 积分：1
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Doppler_shift
说明： 计算多普勒频移，直接运行就好用，熟悉多普勒的原理(To calculate the Doppler frequency shift, direct operation is easy to use, familiar with the principle of Doppler)
- 2020-01-03 21:18:42下载
- 积分：1
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ReliabilityWeib
基于蒙特卡罗法的复杂系统可靠性仿真威布尔分布(based on the Monte Carlo simulation of complex systems reliability Weibull distribution)
- 2007-07-04 09:22:58下载
- 积分：1
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huatu
对数据串画成图，用Matlab语言实现，方便使用，保存合适图像。(agkajdla kladslk kj af kkl lkjsdaklj laj kj)
- 2009-05-10 09:11:11下载
- 积分：1
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tftb-0.1
说明： matlab中的时频分析工具，包含若干函数以及演示文件(matlab in the time-frequency analysis tools, including a number of functions and presentation files)
- 2010-03-29 22:15:46下载
- 积分：1
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example4_3
例3：分析占空比为ta的矩形脉冲频谱
T=1 时间窗大小
ta=0.5 占空比
N=256
t=linspace(-T,T,N)
ts=2*T/N
fs=1/ts
(x=zeros(1,N)
x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1)
y=fft(x,N)
figure
plot(t,x)
title([ 时域信号图 占空比为 ,num2str(ta)])
axis([-T T-0.2 1.2])
xlabel( t /s )
figure
subplot(211)
f=linspace(-fs/2,fs/2,N)
plot(f,abs(fftshift(y))/N)
title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ])
xlabel( f /Hz )
)
- 2010-05-25 20:59:59下载
- 积分：1
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pso
典型的粒子群算法的matlab程序，附带详细注释(typical PSO algorithm with detailed annotation
)
- 2013-07-17 10:15:06下载
- 积分：1
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fai_ke53
小波包分析提取振动信号中的特征频率，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述。( Wavelet packet analysis to extract vibration signal characteristic frequency, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Monte Carlo simulation method of calculating the American option price and basic description.)
- 2017-03-25 15:29:04下载
- 积分：1
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msctrans
Multiplicative Scatter Correction scaling of Z-block (objects x variables)
- 2011-07-22 18:49:31下载
- 积分：1
