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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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softwear_impelement_of_gps_aquisision
软件接收机的实现，属于学术论文,有助于研究参考(sofewear for gps aquisition)
- 2010-05-30 20:49:57下载
- 积分：1
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NRW
根据NRW方法推导出计算超材料等效参数的方法，由CST仿出S11,S21并导出S11,S21的复数形式，利用matlab调用，就可以算了介电常数和磁导率(By S11, S21 calculate dielectric constant and magnetic conductivity)
- 2021-01-07 19:08:52下载
- 积分：1
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junyun_opticfiber
用于分部反馈边发射激光器亚波长光栅的模拟与计算，通过改程序可以对于具体实验具有指导作用(Division feedback for simulation and calculation of edge-emitting lasers subwavelength grating can have a guiding role for specific experiments by changing procedures)
- 2016-01-15 14:00:54下载
- 积分：1
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Gauss_Seidel
用Gauss_Seidel迭代法来求解方程组的解的程序(With Gauss_Seidel iterative method to solve the solution of system program)
- 2012-03-26 15:34:59下载
- 积分：1
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cfar
雷达信号处理中的CFAR仿真程序，同时比较了在相同虚警率下的理想检测门限、单元平均CFAR检测门限、审核式CFAR检测门限、有序统计CFAR检测门限。(this is a program about cfar in radar signal processing。)
- 2021-03-19 14:59:19下载
- 积分：1
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MS_Regress_Sim
通过matlab软件编辑加入马尔科夫转换机制的GARCH模型的极大似然估计(likelihood of markov regime swithing GARCH model through matlab)
- 2014-09-19 22:01:01下载
- 积分：1
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randomForest_4.5-36
随机森林分类器 可以实现分类 适合初学者学习参考(Neural network classifiers can be used to classify information for beginners to learn)
- 2010-11-05 10:35:03下载
- 积分：1
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BSC1
基于BSC信道的simulink仿真模拟( U57FA u4A1 uli)
- 2021-03-24 17:49:14下载
- 积分：1
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zuixiaoerchengbianshi
说明： 递推最小二乘 辩识算法,算法简单易懂,按照系统辩识与自适应书上的算法编写(Recursive least squares identification algorithm easy-to-read, in accordance with the system identification and adaptive algorithm for the preparation of a book)
- 2009-07-24 21:21:57下载
- 积分：1
