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mpiv_toolbox
本程序使用pIV方法，追踪流体的速度。使用Matlab编程，通用性强(PIV program)
- 2014-12-30 17:53:54下载
- 积分：1
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scaleif
matlab函数scaleif，用于改变度量，详见英文描述( function sim = scaleif(im, newMin, newMax, oldMin, oldMax)
Scales an image such that its lowest value attains newMin and
it highest value attains newMax. OldMin and oldMax are not
necessary but are useful when you don t want to use the true
min or max value.)
- 2020-12-15 17:19:15下载
- 积分：1
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sweep
matlab code for sweep generation
- 2014-12-12 15:51:24下载
- 积分：1
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2013TSP
说明： 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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DimReduc
维数约简工具箱源代码，包括PCA、LLE等学习算法，可用于模式识别、数据挖掘和统计分析等。(dimension reduction toolkit source code, including the PCA, LLE and other learning algorithms can be used for pattern recognition, data mining and statistical analysis.)
- 2007-06-20 16:07:54下载
- 积分：1
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shuzubaocun
通过选择法，选出一组数据，导入到新建的数组中(By selecting the method to elect a set of data, into the new array)
- 2011-09-10 16:50:53下载
- 积分：1
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ofdm_signal
OFDM信号具有高峰均功率比的特点，研究交织技术在抑制OFDM信号峰值平均功率比（PAPR）中的应用。论文首先阐述了OFDM的基本原理和关键技术，简单介绍了目前降低PAPR的几种方法，在对交织法降低OFDM系统的PAPR进行理论分析的基础上，提出了一套合理的交织方案――利用分组交织器和伪随机交织器降低PAPR，最后通过MATLAB仿真得出结论。(OFDM signal has a peak to average power ratio characteristic of interwoven OFDM technology in the inhibitory signal peak-average power ratio (PAPR) of the application. Thesis first expounded the basic principles of OFDM and key technologies, the simple introduction of the current of several methods to reduce PAPR, intertwined in the law to reduce PAPR of OFDM system, the theoretical analysis, based on a set of reasonable intertwined programs- use Packet interleaver and the pseudo-random interleaver to reduce PAPR, the final conclusion through MATLAB simulation.)
- 2008-06-02 17:17:55下载
- 积分：1
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gaborWavelet2
gabor变换提取图片特征的代码片断,以及gabor滤波器的部分代码(gabor transform to extract image features of the code snippet)
- 2010-05-18 15:23:10下载
- 积分：1
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MM-PPSKKP
产生MPSK信号的matlab源源代码，其中有4psk与8psk两中
(MPSK signal matlab Yuanyuan code, which 4psk with a 8psk two in)
- 2012-08-23 21:07:52下载
- 积分：1
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linear-phase-IIR
Passband-linear-phase IIR EQ design with poles and zeros
- 2014-12-24 22:13:59下载
- 积分：1
