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DCT
code for dct for image processing
- 2009-04-09 17:53:40下载
- 积分：1
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用Welch法进行功率谱估计
考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等，在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)
- 2005-07-12 11:18:13下载
- 积分：1
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MATLA_FEM
一本关于利用Matlab进行有限元分析的书籍。是Kattan的第二版。多是关于单元类型的分析。(A book about finite element analysisusing Matlab. Second edition of Kattan. Mainly about element type analysis.)
- 2012-06-18 10:58:53下载
- 积分：1
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matlab-OPTIMAZER
MATLAB优化工具箱学习资料，使用方法，线性规划，二次规划(MATLAB optimization toolbox learning materials, the use of linear programming, quadratic programming)
- 2015-03-16 20:48:46下载
- 积分：1
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MATLAB_reveal_add1
matlab揭秘的附件，
带图带源码文件，1、3章(the matlab Secret Annex, the band diagram with source files, 1,3 Chapter)
- 2012-12-01 12:21:59下载
- 积分：1
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ch
说明： 传统分水岭分割算法，源程序，大家有需要的拿去用哈，最近在做这方面的改进，希望对大家有用(Traditional watershed segmentation algorithm, source code, we need to take it with Kazakhstan, the recent improvements in this area, we hope to be useful)
- 2011-04-11 10:45:24下载
- 积分：1
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chapter03
Matlab source code Chapter3 from Makarov book
- 2012-05-20 06:52:25下载
- 积分：1
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power-system-dynamic
analysis of dynamic of power system
- 2013-10-11 21:44:59下载
- 积分：1
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modmap函数
说明： 2012版本以后就没有这个函数了，希望对大家有用，有问题私信我(modmap in matlab thanks)
- 2021-04-24 21:58:47下载
- 积分：1
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HuMoment
(using Matlab)calculate Hu-moment of images
- 2010-11-15 16:47:24下载
- 积分：1
