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zipeaks
matlab code on optimization
- 2012-11-22 21:18:45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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hyvarinens-fixed-point-algorithm
This letter addresses the problem of fetal electrocardiogram (FECG) extraction. A
class of source extraction algorithms is proposed, which uses a combination of two
di® erent approaches: Barros s source extraction approach and HyvÄ arinen s ˉxed-
point approach.
- 2013-01-09 17:43:28下载
- 积分：1
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Tikonov_Regularized_Solutions_For_1D_Shaw_Problem
1-D Shaw Problems: Finds the Tikhonov regularized solutions (L = I) for a variety of choices for alpha and generates a waterfall plot of the results
- 2009-04-28 14:03:26下载
- 积分：1
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shuzixinhaochuli
数字信号处理专业课程设计报告书，有关实验报告及相关的matlab程序。(Digital signal processing curriculum design report about lab reports and related matlab program.)
- 2013-12-13 10:12:47下载
- 积分：1
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LIF
牛人的图像分割的代码，文件夹里附带算法的参考文章，值得学习(image segmentation)
- 2013-05-08 21:28:53下载
- 积分：1
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HarmonicsANDapfft
电力系统谐波监测相关的文章其中的fft和apfft之间的对比很有参考意义(Fft and apfft contrast between the power system harmonic monitoring related article which is very useful)
- 2014-12-11 11:20:01下载
- 积分：1
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music
music算法的M文件，实现经典MUSIC的Matlab仿真(M-algorithm music files, the realization of the Matlab simulation of the classic MUSIC)
- 2009-05-06 10:38:52下载
- 积分：1
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NSGA2
多目标进化算法，里面有html格式的源码说明！(Multi-objective evolutionary algorithm, which has the source code for html format description!)
- 2010-03-10 22:14:59下载
- 积分：1
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power_wind_dfig
随机风速下并网型双馈风力发电机simulink模型(Random wind speed and grid simulink model of doubly fed wind power generator)
- 2011-05-15 15:04:11下载
- 积分：1
