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There are 200 random lines. This program is used to calculate how many intersection points they have.

演示软件：不变特征点匹配。 作者：大卫罗伊(Demo software: Invariant keypoint matching. Author: David Lowe)

深度有向寻圈。访问当前某个顶点的后继，再访问后继的某个子顶点，若没有，返回上一层访问其他后继(Depth of the search circle. The current follow-up visit to a vertex, then visit a subsequent sub-vertex, if not, return to the level of other follow-up visit)

说明：  RS的编码以及迭代译码，是【7,3 5】的RS码，希望对大家有帮助(it can work well~hope can help you)

说明：  Haskell 中文教程1-3章(flw译) 纯粹的函数型编程语言。以著名逻辑学家 Haskell B. Curry 的名字命名。 最初的目的是想要设计出满足下面这些要求的语言： 1，它必须能够适合教学、研究、应用开发，包括一些大系统的构造。 2，它必须能够使用形式语言来准确描述。 3，它必须是自由免费的，任何人只要愿意都可以获取、使用和再次发布它。 4，它必须建立在大家一致认可的基础上。 5，它应该能够消除目前的函数型编程语言的差异。 (Haskell Chapter Directory 1-3 (flw translation) purely a function-based programming language. Famous applicability Haskell B. Curry named. The initial aim was to get below designed to meet the language requirements : 1, it must be suitable for teaching, research, application development, including the construction of large-scale systems. Two, it must be able to use formal language to accurately describe. 3, it must be free free of charge, to anyone who can access, use and release it again. 4, it must be built on consensus on the basis of recognition. 5, it should be able to eliminate the current function-type programming language differences.)

用MATLAB下面的simulink库里的dsp builder搭建了一个图形化的iir滤波器模型(Using MATLAB simulink library following the dsp builder to build a graphical model of iir filter)

高速铁路路基沉降是一个复杂的系统过程,涉及不同时期、不同工况,选用单一的预测模型不足以反映路基整体的变形规律.Logistic模型及Verhulst模型的曲线均为S形,可以反映全过程的地基沉降与时间的关系.针对路基填筑期和降水期两个时段利用MATLAB软件编制程序计算模型参数,得到Logistic模型和灰色Verhulst模型,进而求得两者的最优加权组合模型.对比结果表明:在路基填筑期由两者的最优加权组合模型预测得到的结果与实测结果较吻合,拟合精度高于单一模型 而在降水期Verhulst模型的预测值更接近实测值,平均相对误差约为1.75％,拟合精度较高.(High-speed railway subgrade settlement process is a complex system involving different times and in different conditions, the choice of a single forecasting model does not adequately reflect the overall deformation of roadbed. Curve Logistic model and Verhulst models are S-shaped, the whole process can be reflected foundation settlement versus time. against roadbed construction period of two hours and precipitation using MATLAB software programming model parameters, the Logistic model and gray Verhulst model, and then get the optimal model of a weighted combination of the two. comparative results indicate : results and experimental results in the roadbed construction period by the weighted combination of the best of both models predicted than the anastomosis fitting accuracy than a single model precipitation predicted value of Verhulst model closer to the actual value of the average relative error approximately 1.75 fitting accuracy.)

本书详细介绍了matlab在信号分析和处理方面的应用，有丰富的应用实例和习题，有大量的源程序。(the book details the Matlab signal analysis and processing of applications, is rich in examples and exercises, a large number of the source.)

用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。(Simulink tools used to write code (S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h.)

产生随机共振现象的输入输出信噪比曲线，参数可以修改，不过过不要乱改动哦，不然振动不起来了。，已通过测试。 (SNR curve of the input and output of a stochastic resonance phenomenon, the parameters can be modified, too do not make changes Oh, or the vibration is not up. , Has been tested.)