LMS_ESTIMATION

说明：  LDPC编码经过AWGN信道后的高斯消元法的译码过程的MATLAB仿真(LDPC codes through AWGN channel Gaussian elimination method, after the decoding process of MATLAB simulation)

通信系统建模及仿真，包括二进制传输误码率仿真，HDB3码的解码，显示眼图，时钟提取提取等(Modeling and simulation of communication systems, including simulation of the binary transmission error rate, HDB3 code, decode and display the eye diagram, the clock extraction extraction)

运用matlab混沌系统中的logistic映射的仿真； 运用keil对八路电子抢答器，有抢答和没抢答的设计，效果显示(Mapping of logistic chaotic systems using matlab simulation Using the keil to eight-way digital vies to answer first, vies to answer first and not vies to answer first the design, display effect )

说明：  通信系统方面的matlab书籍,对通信系统相关方面都有涉及,是用matlab仿真通信系统的教材.(Communication systems matlab books related to aspects of the communication system involved is the simulation of communication systems using matlab materials)

This text provides an introduction to the numerical methods that are typically encountered (and used) in science and engineering undergraduate courses. The material is developed in tandem with MATLAB which allows rapid prototyping and testing of the methods. The package MATLAB (matrix laboratory) pro- vides an environment in which students can learn to programme and explore the structure of the numerical methods. The methods included here are of a basic nature and only rely on material which should have been explored prior to the fi rst year undergraduate stage.

This code is for Reduce Rank Square Root Technique in MatLab

基于ＡＢＡＱＵＳ二次开发，ＶＵＭＡＴ随动强化模型。(Based on ABAQUS secondary development, VUMAT kinematic hardening model.)

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.)

ds algorithm motion estimation

自适应门限恒虚警检测的研究，主要是介绍恒虚警的一些基本理论及其仿真方法(Adaptive threshold CFAR detection introduced CFAR some basic theory and simulation method)