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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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LM2068R-3
说明： LM2068中文资料手册LM2068中文资料手册LM2068中文资料手册LM2068中文资料手册(LM2068 Data Sheet LM2068 Chinese Chinese Chinese data notes LM2068 Manual LM2068 Chinese data manual)
- 2010-03-20 23:20:46下载
- 积分：1
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Keypad
select keypad for dtmf tone
- 2013-08-18 13:32:15下载
- 积分：1
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卫星轨道坐标的计算方法
说明： 详细介绍了轨道方程，轨道六要素，以及坐标计算方法，包括椭圆轨道面坐标、大地空间直角坐标以及经纬度坐标的计算方法(The orbit equation, the six elements of orbit and the coordinate calculation method are introduced in detail, including the calculation method of elliptical orbit, plane coordinates, geodetic space, rectangular coordinates and longitude and latitude coordinates)
- 2020-06-16 09:20:01下载
- 积分：1
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huff
huffman and entropy approach
- 2009-04-18 16:34:09下载
- 积分：1
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V-BLAST
说明： MIMO中空时块码的实现!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(achieve of MIMO Space-time block codes)
- 2009-08-04 16:55:46下载
- 积分：1
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Digital-Modulation-Techniques2
this is about digital modulation techniques used in matlab
- 2011-11-18 15:43:42下载
- 积分：1
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MATLAB6.5.1
matlab6.5电子版，经典的matlab学习丛书。(matlab6.5 electronic version of the classic series matlab learning.)
- 2009-04-10 16:43:55下载
- 积分：1
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qam
QAM实现程序
此程序实现了QAM信号的输出，通俗易懂。(QAM procedures to achieve the realization of this process the output of the QAM signal, easy to understand.)
- 2009-06-10 20:12:16下载
- 积分：1
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simulate-oradar-signal
使用matlab做关于雷达的仿真，并且含有雷达性能的讲解与代码(Use matlab to do simulations on the radar, and contains the code to explain radar performance)
- 2014-08-21 11:06:59下载
- 积分：1
