butterfly-option-strategy

在工程应用中 经常会遇到一些复杂的非线性系统, 这些系统状态方程复杂, 难以 用数学方 法准确建模。 在这种情况下, 可以 建立 BP 神 经网 络表达这些 非 线 性系 统。 该方法把未 知 系 统看成是一个黑箱, 首先用 系 统 输入输出 数据 训 练 BP 神 经网 络, 使网 络能 够表达该未 知 函 数, 然后就可以 用训练好的 BP 神经网络预测系统输出 。 本章拟合的非线性函 数为 y = x1^2+x2^2. 。 (In engineering applications often encounter some complex nonlinear systems, which complicated the equation of state, can not be accurately modeled mathematically. In this case, BP neural network can be established to express these nonlinear systems. The method of the unknown system as a black box, the first input and output data with systematic training BP neural network, the network can express the unknown function, then you can use the trained BP neural network forecasting system output. Chapter for fitting non-linear function y = x1 ^ 2+x2 ^ 2..)

zcr : ampzcr.m -- short time energy and zero crossing rate program vad.m -- endpoint detection

Face Recognition By PCA using SVD technique .

说明：  风力发电模型中的双馈电机模块。该模型利用异步电机特性搭建出来，具有较好的精度(Wind power generation model of the doubly-fed motor module.The model utilizes asynchronous motor characteristics set out, has a good precision)

預失真是一種用於改善無線電發射機放大器線性度的技術。大多數電信系統中的無線電發射機放大器需要是“線性的”，因為它們必須準確地再現其輸入端存在的信號。 壓縮其輸入或具有非線性輸入/輸出關係的放大器導致輸出信號濺到相鄰的射頻上。 這會對其他無線電信道造成乾擾。(Predistortion is a technique used to improve the linearity of radio transmitter amplifiers. Radio transmitter amplifiers in most telecommunications systems are required to be "linear", in that they must accurately reproduce the signal present at their input. An amplifier that compresses its input or has a non-linear input/output relationship causes the output signal to splatter onto adjacent radio frequencies. This causes interference on other radio channels.)

分析研究了用CV模型，CA模型，Singer模型对单机动目标进行跟踪算 法的matlab仿真。比较了各模型的滤波性能，得出了一些有意义的结论。 (Analysis of the CV model, CA model, Singer model single maneuvering target tracking algorithm matlab simulation. Compare the filtering performance of each model, and draw some meaningful conclusions.)

这个是一个倒立摆的控制设计程序，用 c写的可执行文件(This is an inverted pendulum control design procedure)

声子晶体点线缺陷的程序，matlab编程仿真，2012以上版本(Phononic crystal point and line defects program, matlab programming simulation, version 2012.)

介绍MATLAB中FFT的使用方法，适用于学习MATLAB在信息处理中的运用。(Introduced the MATLAB FFT in use, applies to the use of learning of MATLAB in information processing.)

本论文描述了一种基于ELECTRE排序的简化方法，使多属性决策更加简便(This paper describes a simplified approach based on ELECTRE sort, easier to make multi-attribute decision)