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Matlab1ANNToolBar
一个神经网络的工具箱,用于M a t l a b中(A neural network toolbox for M atlab in)
- 2008-08-15 10:20:44下载
- 积分:1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠:对连续信号采样,要求连续信号是带限的,采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏:DFT对时域信号进行了截断(相当于采样信号乘了一个窗函数),时域的乘积相当于频域卷积,改变了原信号频谱。
改用其他窗函数(非矩形)改善泄漏。
3、栅栏现象:DFT 只给出了频谱在采样点上的取值,采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分:1
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lipsolWIN32
Linear programming Interior Point Solvers
- 2011-07-24 01:50:50下载
- 积分:1
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c6exsf1
通过matlab编辑S函数来实现对单相接地故障中故障电阻的计算(S function editing through matlab to achieve the single-phase ground fault in the fault resistance calculation)
- 2013-09-20 15:53:05下载
- 积分:1
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Allan
说明: 艾伦方差可以用来分析陀螺的各项性能指标,本matlab程序运行效果为对勾形的双对数曲线图(Allen variance can be used to analyze various performance indexes of gyroscope. The matlab program is double logarithm curve of checkmark)
- 2020-04-02 11:12:15下载
- 积分:1
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matlab6
matlab数字信号与应用源代码6,对初学者有帮助(and application of digital signal matlab source code 6, help for beginners)
- 2009-05-19 23:01:13下载
- 积分:1
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DVB-Tsimulation
in this projeh DVB-T signal can simulate by matlab
- 2013-07-10 23:17:41下载
- 积分:1
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L1_homotopy_v2.0
这厮压缩感知恢复算法中L1同伦优化的算法(Zhesi restore compressed sensing algorithm Homotopy algorithm optimized L1)
- 2015-04-17 11:35:39下载
- 积分:1
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NNcodes
This is My extensive work on Neural networks and includes my MATLAB simulated programs applied for neumerous examples for XOR problems,Hebb s Rule,Back Propagation Algorithms in doc.Whoever Interested can stright away use them and get it executed in MATLAB.
- 2010-09-04 14:05:16下载
- 积分:1
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F_eigenfunction_of_bouble_clading_fiber_fine
说明: 双包层光纤的本征值求解. 两个边界的本征值方程连解。 (eigenfunction of bouble clading fiber )
- 2010-04-21 23:06:23下载
- 积分:1