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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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OFDMforWirelineLogging
说明： 常规的单载波调制技术在带宽有限的测井电缆上的低传输速率制约着成像测井技术的发展。在分析测井
电缆传输特性和 OFDM 技术原理的基础上 ,设计了一种基于 OFDM 技术的测井电缆高速数据传输系统 ,并介绍了
基于 OFDM 技术的测井电缆高速数据传输系统的参数设计和工作原理 ,给出了不同长度测井电缆上的测试结果。
电缆实测结果表明 ,在 7 000 m长的测井电缆上 ,基于OFDM 技术的测井电缆高速数据传输系统可获得900 kbit / s
以上的数据传输速率和低于 5E28 的误码率。当变压器的接入模式为 Mode2II时 ,系统最高的数据传输速率可达到
1. 1 Mbit/ s。(To solve t he low data t ransmission rate problem in t he conventional single car rier mod2
ulation met hod for logging cable and enhance t he data t ransmission rate , a new data t ransmission
system with high data t ransmission rate for logging cable is propo sed , which is based on t he Or2
t hogonal Frequency Division Multiplexing (OFDM) technology. The working principle of OFDM
modem and t he procedure of data t ransmission system are al so presented and lot s of test s are car2
ried out on logging cables with different lengt hs. It is verified that t he data t ransmission rate can
reach 900 kbit/s on 7 000 meter s logging cable wit h bit er ror rate (BER) lower t han 5E28 , and
t he maximum data t ransmission rate is 1. 1 Mbit/s under Mode2II of t he t ransformer .)
- 2009-08-15 22:22:38下载
- 积分：1
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LMS_Newton
基于牛顿法的LMS自适应滤波器设计，基于MATLAB实现(Newton method based on the LMS adaptive filter based on MATLAB, design
)
- 2011-09-16 15:17:54下载
- 积分：1
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tractionmode
This project consists of two back to back pwm converters used for simulation of traction load in normal operating mode. The first side is connected to a single phase network and uses hysteresis current control. The second side is connected to a three phase network and uses space vector modulation for controlling its inverter.
- 2014-02-20 13:45:01下载
- 积分：1
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schmsv6
fundamentals of digital modulations
- 2010-07-04 02:44:32下载
- 积分：1
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Roulettewheelselection
两种赌轮算法比较，内容清晰，可直接在matlab上运行(Roulette wheel selection)
- 2010-10-21 20:24:47下载
- 积分：1
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Easy-paint
画图工具实现windows GDJ 图像绘制 子窗口控制项的使用.(Easy paint)
- 2014-12-18 14:34:08下载
- 积分：1
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MATLAB-USE-IN-PROGECT-WITH-C-VB-JAVA
MATLAB与vb等语言的综合编程应用以及利用matlab来编写exe的具体方法(Comprehensive application programming languages such as MATLAB and vb and matlab to write exe)
- 2012-07-22 17:36:20下载
- 积分：1
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Improved_DL_code
对KSVD和MOD两个字典学习算法的简单有效的改进，都可以加速学习过程中的收敛。代码压缩包里包含使用说明，并附有文章参考。(Simple and effective improvements to the two dictionary learning algorithms of KSVD and MOD can speed up the convergence in the learning process. The code compression package contains instructions and references.)
- 2018-06-02 17:31:55下载
- 积分：1
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duochongfenxing
说明： 计算二维图形的分形维数，比较好用，计算方便(Calculate the fractal dimension of a two-dimensional figure)
- 2019-05-12 19:23:36下载
- 积分：1
