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shipinfenzhen
对任意视频进行分帧与合成,本方法的实时性很好,基本能达到实时处理(For any video framing and composition, this method is very good real-time, basic to achieve real-time processing)
- 2010-06-26 10:42:44下载
- 积分:1
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0471218766AntennaC
antenna ebook using matlab for electrical enginerring
- 2012-10-28 07:57:01下载
- 积分:1
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spi
说明: SPI 函数模块,用于读取,非常好用,适用于初学者。(SPI function module to read, very easy to use, suitable for beginners.)
- 2011-04-04 19:12:04下载
- 积分:1
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dynamic-meterology-chapter-one--
an introduction to dynamic meterology chapter five matlab所有代码 气象专业经典资料(an introduction to dynamic meterology chapter five matlab code)
- 2013-12-11 18:35:39下载
- 积分:1
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201312-1091
基于混沌理论的一种安全压缩感知方案设计201312-1091(The Application of Compressed Sensing in Image Compression)
- 2014-02-04 17:44:48下载
- 积分:1
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animcp
模糊控制器,应用于控制系统,例如倒立摆的控制中。(Fuzzy controller used in control systems, for example, the control of inverted pendulum.)
- 2011-05-25 11:08:04下载
- 积分:1
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MatlabReview
helpfull material about matlab and simulink review and commands
- 2009-10-23 13:17:28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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Desktop
跳频信号参数估计。参数为跳速、跳时和跳频频率集。文档包括一个短时傅里叶变换函数,一个参数估计函数,一个参数估计相对误差随SNR的曲线图和一个时频分析图。(Frequency hopping signal parameter estimation.Parameters for speed, to jump and jump frequency set.Document includes a function of the short-time Fourier transform, a parameter estimation function, a parameter to estimate relative error with the SNR curve and a time-frequency analysis diagram.)
- 2014-06-30 14:29:33下载
- 积分:1
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AcTUP-v2.2L_2
声波在水中传播计算的matlab工具箱,包括射线模型、简正波模型、快速场模型等(underwater acoustic Simulaton toolbox for matlab)
- 2018-04-17 21:02:28下载
- 积分:1