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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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matlab-gui-example
matlab 初学者所需要的gui学习工具，帮助你从VC++快速入门matlab gui(a example for matlab gui,for a learner)
- 2012-05-16 14:08:49下载
- 积分：1
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bianyuandejiance
这是一个细胞边缘检测的程序 经过测试通过(This is a cell edge detection procedures after the test)
- 2007-04-29 20:49:58下载
- 积分：1
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zuoye212_3
分别用LMS和RLS算法实现回音对消，并比较二者收敛性能，及不同信道参数对算法的影响(LMS and RLS algorithms were used to achieve echo cancellation, and compare the convergence performance of the two, and different channel parameters affect the algorithm)
- 2011-07-16 10:48:17下载
- 积分：1
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S229_Boost_01
电力电子DC-DC变换---Boost升压斩波器MATLAB仿真(Power electronics, DC-DC straight converter- Boost chopper MATLAB/Simulink simulation files)
- 2012-03-15 19:31:32下载
- 积分：1
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惯导解算函数
说明： 用于SINS导航解算与姿态速度位置更新的matlab程序(Matlab program for SINS navigation solution and attitude velocity position update.)
- 2020-03-21 10:41:30下载
- 积分：1
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ATND_g4
利用MATLAB语言仿真截断正态分布函数(Simulation using MATLAB language truncated normal distribution function)
- 2009-10-06 11:50:06下载
- 积分：1
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Multi-wavlet
多维小波matlab工具箱，可以和matlab自带的小波工具箱配合使用。(Multi-dimensional wavelet toolbox matlab, matlab can bring their own use of the wavelet toolbox.)
- 2009-07-09 17:00:09下载
- 积分：1
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matlab
包含matlab常用图像操作，概括全面，包含读写图像文件、图像的显示等(Contains matlab common image manipulation and comprehensive summary, including reading and writing image files, image display, etc.)
- 2010-03-16 09:38:40下载
- 积分：1
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SDPAD-release
The time-independent behaviour of this approach is necessary to assure the
correct tracking
- 2020-08-23 15:08:17下载
- 积分：1
