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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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Matlab2010jiaocheng
Matlab2010经典超强中文教程,一个功能强大的教材，对软件功能和函数命令使用有系统的讲解。适合初学者。(The classic super matlab2010 Chinese guide, a powerful teaching materials, to explain the use of software features and functions command system. Suitable for beginners.)
- 2013-04-22 15:01:09下载
- 积分：1
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tuxiangcuangaifenxingxue
现在大多数图像的复制和粘贴，篡改检测算法对于区域复制后的进一步混合处理不能进行有效检验。(Most of the existing detection algorithms for image copy-move forgery cann t effectively detect the sequential mixed image forgeries. )
- 2014-03-03 18:54:26下载
- 积分：1
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detection
包含最近几年内所有的有关信号检测的大论文(the papers of detection)
- 2010-12-17 15:06:06下载
- 积分：1
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image_block
说明： 实现了图像的分块操作，比较方便初学者使用(It is the program for image blocking.)
- 2010-04-30 11:01:03下载
- 积分：1
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MATLAB2013B
matlab2013b，欢迎下载，里面有下载网址，及破解文件！！！(matlab2013b, welcome to download, download URL, and crack file! ! !)
- 2013-10-27 18:58:20下载
- 积分：1
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DTC_Vf
Matlab DTC Model in simulink
- 2015-01-20 03:53:28下载
- 积分：1
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ieee30
ieee30节点的matlab程序，基于极坐标下牛拉法的求取雅可比矩阵(failed to translate)
- 2013-05-05 20:11:21下载
- 积分：1
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fyqzexsy
多目标跟踪的粒子滤波器，GnCeSur参数一种流形学习算法（很好用），matlab开发工具箱中的支持向量机，采用波束成形技术的BER计算，aNjewOn条件IMC-PID是利用内模控制原理来对PID参数进行计算，车牌识别定位程序的部分功能。( Multi-target tracking particle filter, GnCeSur parameter A fluid manifold learning algorithm (good use), matlab development toolbox support vector machine, By applying the beam forming technology of BER aNjewOn condition The IMC- PID is using the internal model control principle for PID parameters is calculated, Part of the license plate recognition locator feature.)
- 2016-02-24 17:22:30下载
- 积分：1
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file
this is a mat lab tutorial thanks
- 2012-06-04 16:57:08下载
- 积分：1
