Cap04_Introduction-to-Multipath

基于动态时间规划（DTW）的语音信号识别，MATLAB环境下的(Dynamic Programming (DTW) of the speech signal recognition, MATLAB environment)

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.)

学习matlab最权威的书籍，内容丰富详实(Learning matlab most authoritative books, rich and detailed)

matlab中如果需要更改对话窗口的图标，则需要自己在程序中加入代码，文件包括3个窗口的图标更改程序。(matlab dialog window, if you need to change the icon, you will need to add your own in the program code, files including three windows icons change the program.)

说明：  生成有色噪声，并显示噪声功率谱。这该死的20个字(Generating colored noise)

ofdm matlab仿真 单片机 串口(ofdm matlab)

Low density parity check matrix(Description A program written for generating LDPC matrix in the as pattern as discussed in the research paper , " Time varying periodic convolutional codes with low density parity check matrix" by Alberto jiménez Felströ m and Kamil Sh. zigangirov IEEE Transaction on information theory vol 45 no 6 sept 1999. pages 2181-2191)

谱减法去噪程序。我用过了，很好用，希望对大家有所帮助。(Spectral subtraction based denoising procedure. I have used, very good, we hope to help.)

Demo for the Fractional-Order Chaotic Systems (FOChS) - functions

Response surface methodology for PD controller design for tanker ship