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displayRelevantVisualWords
Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an observer (an eye or a camera) and the scene.[2][3] The concept of optical flow was first studied in the 1940s and ultimately published by American psychologist James J. Gibson[4] as part of his theory of affordance. Optical flow techniques such as motion detection, object segmentation, time-to-collision and focus of expansion calculations, motion compensated encoding, and stereo disparity measurement utilize this motion of the objects surfaces and edges.[5][6]
- 2012-03-31 23:44:49下载
- 积分：1
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code
设计一个信号发生器,并同时画出信号的时域表
示，自相关函数及功率谱(Design of a signal generator and simultaneously draw the time domain representation of the signal, the autocorrelation function and the power spectrum)
- 2013-10-16 21:24:32下载
- 积分：1
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LSB
LSB algorithm for matlab
- 2012-02-13 05:50:16下载
- 积分：1
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OFDMxitongjiangdifengpingbiyanjiu
正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。(Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc)
- 2017-05-07 16:48:57下载
- 积分：1
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mx1
说明： 这是一篇关于变桨距控制器的模型，仿真环境，matlab(This is a model of pitch controller, simulation environment, matlab)
- 2019-05-04 23:40:48下载
- 积分：1
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jiaotu
说明： w-w1各教徒和w1个非教徒在海上遇险，必须将一半的人投到海中，其余的人才能幸免，于是想了个办法w人围成一圈从第一人开始报数，数到第w2个就将其人丢入海中，又从下个人数，数到第w2个人又丢入海中，依次循环，怎样排才使投入大海的都是非教徒(w-w1 and w1 of all non-believers believers in distress at sea, half of them must be invested in the sea, the others can be spared, so think of one way to w people form a circle from the first people began to count off a few to the first w2 one would be thrown into the sea of its people, and from under the personal number, the number of individuals to the first w2 then thrown into the sea, followed by recycling, how to make it into the sea row are non-believers)
- 2010-03-20 22:11:26下载
- 积分：1
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simple-Fourier-transformation
说明： 使用MATLAB对周期性脉冲波进行了简单的傅里叶变换(Simple Fourier Transform on periodic pulse wave by using MATLAB)
- 2011-03-31 09:39:17下载
- 积分：1
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genRayleighFading
输出产生瑞利信道衰落信号
只需输入采样率和多普勒频移大小(this function generates normalized rayleigh samples based on Inverse DFT
The Generation of Correlated Rayleigh Random Variates by Inverse
Discrete Fourier Transform)
- 2011-05-10 09:27:13下载
- 积分：1
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motaifenxi_1
模态分析，用FFT对输入的激励信号提取振动的频率(Modal analysis using FFT excitation signal input to extract vibration frequency)
- 2016-06-26 10:18:20下载
- 积分：1
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FFT
实现快速傅里叶变换的MATLAB程序,能够很准确的绘制出快速傅里叶变换波形(Fast Fourier transform algorithm matlab procedures)
- 2016-10-31 11:37:49下载
- 积分：1
