truetime-1.5

image processing matlab BWFilter

qdpsk调制主要是帮助那些需要代码的朋友们，这些代码仅作参考，如有疑问请留言！！！谢谢(qdpsk modulation is mainly to help friends who need the code, the code is only for reference, if any questions please leave a message! ! ! Thank you)

F2T子函数，在做傅里叶变换时调用的函数。也可做成脚本文件。(F2T subroutine, called when doing Fourier transform function. Can also be made into a script file.)

托业资料，一些托业必备的短语大全，在里面的文章中有标注(TOEIC data, a number of essential phrases TOEIC Daquan, in which there are marked article)

极限学习机分类与拟合,训练采用elmtrain.m，分类与拟合用elmprediction.m.(Extreme Learning Machine classification and fitting)

室内定位算法仿真，，，，，亲测有效。。。。(The indoor positioning algorithm simulation,,,,, pro-test is effective. . . .)

用MATLAB实现的二电平三相逆变器仿真分析。基于simulink的spwm电压型三相逆变器仿真(Simulation with MATLAB realization of the two-level three-phase inverter. Simulink based spwm voltage three-phase inverter simulation)

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.)

基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计，如直扩信号和周期调制信号 (Matlab-based spectral estimation algorithm to achieve the cycle, can be characterized with cyclostationary signal parameter estimation, such as the DS signal and cycle modulation)

mrca adaptive control