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bbbbbbbbbbbbbb
the useful information for project guide.Here is matlab pdf
- 2010-08-15 20:05:45下载
- 积分：1
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spectrum-estimation
功率谱估计是利用有限长的数据估计信号的功率谱，广泛应用于各个领域。功率谱估计主要分为经典谱估计与现代谱估计。常用的经典谱估计方法有周期图法，相关法，周期图的改进法，常用的现代谱估计方法有最大熵谱估计，AR模型，MA模型，ARMA模型。经典谱估计适用于长序列的信号，其主要缺陷是描述功率谱波动的数字特征方差性能差，频率分辨率低，现代谱估计适用于短序列的信号，旨在改善谱估计的分辨率，并将其应用于实际地震资料的谱分析。
(Power spectrum estimation is the use of a finite length data to estimate the power spectrum of the signal, widely used in various fields. Power spectrum estimation is divided into classic and modern spectral estimation spectral estimation. Commonly used methods of classical periodogram spectrum estimation method, the relevant law, the cycle graph Improvement Act, commonly used in modern spectral estimation methods have maximum entropy spectral estimation, AR model, MA model, ARMA model. Classical spectral estimation applied to signal a long sequence, its main drawback is the fluctuation power spectrum describing digital signature variance performance is poor, the frequency resolution is low, modern spectral estimation applied to signal short sequences designed to improve spectral estimation resolution, and The analysis applied to real seismic data spectrum.)
- 2014-11-01 17:02:48下载
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PID
在PID控制中，微分信号的引入可改善系统的动态特性，但也易引起高频干扰。在误差扰动突变时尤其显出微分项的不足。若在控制算法中加入低通滤波器，则可使系统性能得到改善。(In PID control, the introduction of differential signal can improve the dynamic characteristics of the system, but it can also cause high-frequency interference. When error perturbations change abrupt, the deficiency of differential terms especially shows. If the low-pass filter is added to the control algorithm, the performance of the system can be improved.)
- 2018-06-23 22:03:29下载
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BLDCM_control
无刷直流电动机矢量控制模型,控制IGBT而改变输入的.(The vector control model of Brushless DC Motor.
Brushless DC Motor drived by IGBT)
- 2009-10-08 23:12:40下载
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perimeterqueenbeeproblem
a perimater time ca for quen bee problem
- 2010-01-26 03:09:52下载
- 积分：1
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chardiv
说明： 利用BP神经网络进行字符识别的系统源码，能进行有效数字字符识别。(BP neural network Character Recognition system source code, can be effective digital character recognition.)
- 2006-02-28 19:19:23下载
- 积分：1
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temtest
Temperature sensing Fiber
- 2011-11-10 02:18:38下载
- 积分：1
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contour
matlab script that detects a contour
- 2010-02-21 03:53:35下载
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stockwell-st
S变换是一种时频分析方法，用于分析非平稳信号。(use S transform to process signal)
- 2012-04-01 22:48:19下载
- 积分：1
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ContentWritingSample1
This is content writing sample
- 2009-12-16 13:29:29下载
- 积分：1
