RLS

sao the code simulate OFDM in telecom

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.)

说明：  matlab 编写的 守恒-激波-跨声速 喷管 计算源码(matlab program)

Non-standard finite difference method for solution of partial differential equations

主要用于计算相空间的源代码，程序是matlab代码，比较短小(computing chaos )

按照粒子群算法以及最近邻法则对全体样品进行分类(In accordance with Particle Swarm Optimization method to classify the samples of the whole)

说明：  这是一些matlab用于数理仿真的一些程序，可以帮助大家进行数理统计的仿真和计算。(Here are some matlab mathematical simulation for a number of programs that can help you carry out the simulation of mathematical statistics and computing.)

The geodesy aspects of Matlab source geodesy aspects Matlab source would be helpful

在matlab环境下，实现鸢尾花数据库的SVM分类，没有使用现成的工具包。(SVM classifier in Matlab environment, iris database, do not use off-the-shelf tool kit.)

extract regions from image