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qpso
说明: k-中心与qpso算法的结合,从文档中读取对象数据,没有维限制。需要设定类别数,先由k-中心计算出各类中心,然后由qpso优化,得到聚类结果,并保存聚类信息。(algorithm for k-medians and qpso combination of object data read from the document, there is no dimension restrictions. Need to set the number of categories, first calculate the k-medians types of center, and then optimized by qpso obtained clustering results, and save the clustering of information.)
- 2010-03-24 14:10:48下载
- 积分:1
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Dyn5
matlab simulation about DY5 transformer
- 2012-01-09 03:59:48下载
- 积分:1
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Image_Fusion_In_Mat
进行多光谱和全色图的图像融合,使用小波变换。(Multi-spectral and panchromatic image fusion map, using wavelet transform.)
- 2014-01-01 18:48:02下载
- 积分:1
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GUI-for-character-recognition
使用数学矩阵软件Matlab进行字符识别可视化编程(visual programming of Character recognition)
- 2013-12-19 20:04:50下载
- 积分:1
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2013TSP
通过并行压缩进行二维信号压缩,提出了一种利用并行压缩传感技术对二维信号进行压缩的新方案。根据这个原理,译码器的重新构造可以并行进行。通过对二维信号进行某些排列,可以确保所有列具有大致相同的密度级别,并且可以使用相同的测量矩阵进行采样。这样可以避免二维信号的矢量化,从而大大减小测量矩阵的尺寸。我们证明,如果排列良好,重建均方误差的上限会更紧。为了说明这一方案,我们将其应用于视频压缩并使用不同帧的排列有两种:参考帧的基于Z字形扫描的排列和非参考帧的基于块测试的排列。仿真结果表明,在相同的压缩比下,峰值信噪比比比在无置换情况下可提高3-7db左右。(we propose a new scheme to compress 2D signals using parallel compressed sensing. According to this seheme, the reeonstruction at the decoder can be performed in parallel. By performing certain permutation on a 2D signal, all columns are insured to have approximately the same density level and can be sampled using the same measurement matrix. In this way, vectorization of a 2D signal can be avoided, and thus the size of the measurement matrix can be dramatically reduced. We prove that with a good permutation, we can have a tighter upper bound on reconstruction mean square error. To illustrate this scheme, we apply it to video compression and use
two kinds of permutations for different frames: the zigzag-scanbased permutation for reference frames and the block-test-based permutation for non-reference frames. Simulation results show that under the same compression ratio, the peak signal-to-noise ratio can be improved by approximately 3-7 dB compared to the case without permutation.)
- 2019-01-12 22:48:49下载
- 积分:1
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kernel-density-estimation
说明: 一种核密度估计,或者称作带宽选择的方法,可以估计二维尺度参数,至于多维以上的估计方法尚在开发,多维情况下个人经验好的方法是多次实验取较好值(kernel density estimation, bandwidth selection, two-dimensional scale parameter can be estimated ,for the multi-dimensional approaches are still under development, multi-dimensional cases, personal experience is to do the experiment many times)
- 2009-08-06 20:57:37下载
- 积分:1
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Clipping-Noise-in-OFDM-Based
In this paper, the impact of clipping noise on optical
wireless communication (OWC) systems employing orthogonal
frequency division multiplexing (OFDM) is investigated. The
two existing optical OFDM (O-OFDM) transmission schemes,
asymmetrically clipped optical OFDM (ACO-OFDM) and directcurrent-
biased optical OFDM (DCO-OFDM), are studied. Time
domain signal clipping generally results from direct current
(DC) biasing and/or from physical limitations of the transmitter
front-end.
- 2013-04-04 16:40:27下载
- 积分:1
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OSPA
计算目标跟踪脱靶距离的一种OSPA距离算法(Calculation of target tracking a miss distance: OSPA distance algorithm)
- 2020-09-04 14:08:06下载
- 积分:1
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csharpapp
csharp app using dll file that built in matlab using matlab builder NE for .net
- 2014-02-01 16:04:57下载
- 积分:1
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zunixiepaoyundong
利用MATLAB求解的阻尼斜抛运动,希望对大家有帮助。(damp)
- 2010-12-15 16:56:12下载
- 积分:1