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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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mixed-integer-programming-problem
处理混合整数规划问题,可以方便计算整数规划问题(Handle mixed integer programming problem)
- 2020-11-02 15:29:53下载
- 积分：1
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计算系统的群延时
说明： 这个程序可以计算线性系统的计算的群延时.(this procedure can be calculated linear system of calculating the group delay.)
- 2005-11-16 13:07:20下载
- 积分：1
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PlaneFrameAssemble
说明： matlab 平面单元分析 适合采用matlab进行有限元计算的朋友(Plane element analysis matlab matlab for finite element analysis using friends)
- 2011-04-06 14:40:10下载
- 积分：1
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svpwm
SVPWM仿真模块 可用在任何需要此算法的模型里(SVPWM simulation module can be used in any model of this algorithm is required)
- 2012-05-21 12:37:56下载
- 积分：1
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SUBTRACTIVE-CLUSTERING-
IDENTIFICATION OF RULES USING SUBTRACTIVE CLUSTERING
- 2014-02-20 10:19:02下载
- 积分：1
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rmdkvkzm
包括随机梯度算法，相对梯度算法，已调制信号计算其普相关密度，采用偏最小二乘法，FIR 底通和带通滤波器和IIR 底通和带通滤波器，虚拟力的无线传感网络覆盖，采用累计贡献率的方法，一个很有用的程序，用MATLAB实现的压缩传感。( Including stochastic gradient algorithm, the relative gradient algorithm, Modulated signals to calculate its density Pu-related, Partial least squares method, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Virtual power wireless sensor network coverage, The method of cumulative contribution rate A very useful program, Using MATLAB compressed sensing.)
- 2016-04-06 21:53:42下载
- 积分：1
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Matlab_Synthesis
采用Prony方法由冲击响应辨识连续时间系统的传递函数和
时间序列分析，采用Levinson算法估计AR模型的参数(prony levinson)
- 2009-09-12 10:13:55下载
- 积分：1
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3_PRR_Parallel_Manipulator_Analysis_GUI
3 PRR Parallel Manipulator with GUI Analysis robot to calculate the forward kinematics
- 2011-05-22 19:10:57下载
- 积分：1
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step12
运用支持向量机以及模糊聚类方法对景点的大米图进行图像分割(We use the support vector machine and fuzzy clustering method to the attractions of the rice figure image segmentation)
- 2014-12-08 21:14:27下载
- 积分：1
