bian_yuan_te_zheng_ti_qu

杜芬振子相轨图在利用混沌处理机械故障微弱信号应用Duffing相轨(Duffing oscillator with mechanical failure orbit map at a weak signal processing phase Duffing orbit)

本程序可仿真IEEE802.16e LDPC编解码器，程序设计原理见本人如下专著。 [1] 肖扬著, Turbo与LDPC编解码及其应用,人民邮电出版社，2010. [2] 肖扬著, MIMO多天线无线通信系统，人民邮电出版社，2009。 本程序只用于科研，不得用于其它场合。(The program can simulate LDPC codec with IEEE 802.16e LDPC of the size 2256*4512, and 1/2 code rate. Copyright (C2010-2015) Yang XIAO, Beijing Jiaotong University, Nov.3, 2010, E-Mail: yxiao@bjtu.edu.cn. Current Version Published: 2010-11-3 In my following books, I derived the algorithm of constructing the parity check matrices of IEEE 802.16e LDPC. [1] Y. Xiao, Turbo and LDPC Codecs and their Applications, Press of Posts and Telecommunications, Beijing, 2010. [2] Yang Xiao, MIMO Multiple Antenna Wireless Communication Systems, Press of Posts and Telecommunications, Beijing, 2009. This program also provides the LDPC code with the size 4512*2256, and 1/2 code.)

用Matlab实现对图像的读入，边缘提取，和OTSU，双峰法的分割。(Read into Matlab realize image edge extraction and OTSU, bimodal law split.)

使用Gdal读取DEM地震前后影像高程，并计算地震前后高程差，绘制地形变化(skyline Gdal)

说明：  温克、孙克华，清华大学出版社。神经网络算法、遗传算法、粒子群算法、免疫算法、蚁群算法等等。(Neural network algorithm, genetic algorithm, particle swarm algorithm, immune algorithm, ant colony algorithm, etc.)

本程序能实现小波模极大值算法去除脉冲噪声，效果明显。(This procedure enables on wavelet modulus maxima algorithm to remove impulse noise, the effect clearly.)

clustring(Density-Based Spatial Clustering of Applications with Noise) is a data clustering algorithm proposed by Martin Ester, Hans-Peter Kriegel, Jö rg Sander and Xiaowei Xu in 1996.[1] It is a density-based clustering algorithm because it finds a number of clusters starting from the estimated density distribution of corresponding nodes. DBSCAN is one of the most common clustering algorithms and also most cited in scientific literature.

matlab信道编码程序，可用于仿真设计TCH/FS信道各模块，检验、测试它们的性能,仿真与分析TCH/FS信道的信噪误码性能。 (channel coding matlab procedures, design simulation can be used to TCH/FS channel of the module, test, test their performance, Simulation and Analysis of TCH/FS channel BER noise letter.)

信号稀疏度检测的matlab仿真程序。该方法能够检测出宽带信号的稀疏度，保证Compressive Sensing在宽带频谱检测中的准确运用。(Signal sparsity detection matlab simulation program. The method can detect the wideband signal sparsity ensure Compressive Sensing wideband spectrum sensing in the exact use.)

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