DTN

发动机万有特性曲线的画法以及代码MATLAB(Engine universal characteristic curve drawing method and MATLAB code)

使用matlab检测图片中的物体，一幅图作为背景，另一幅图中在前一背景下新加了一个物体，则可通过此程序来检测到(Matlab object detection picture, a picture as the background, another picture of the previous context added a new object can be detected through this procedure to)

使用个股日内髙频收益率计算己实现值进行分析,同时计算得到二阶矩 和高阶矩值并进行对比。本文根据己实现量的大小将所有样本股分为己实现值由 小到大的姐别,分别跟踪各股票组合的收益,探索预期收益与个股己实现值之间 的变化关系,然后将分组的结果应用于多空策略,为提高资产配置收益提供参考。 同时,将各己实现变量和各类对预期收益产生影响的控制变量放在一起构建 Fama-MacBeth截面回归,分析高频已实现量是否具有定价能力。(The realized value is calculated by using the daily gust rate of return of individual stocks, and the second-order moments are obtained by calculating at the same time. Comparisons are made with higher order moment values. This paper divides all sample stocks into realized values according to the size of realized stocks. Sisters from small to large track the earnings of each stock portfolio, and explore the relationship between expected earnings and the realized value of each stock. Then the grouping results are applied to the multi-empty strategy to provide reference for improving asset allocation returns.)

Single-Port Gigabit Ethernet Transceiver

本文基于BP神经网络应用于预测的原理，提出预测步骤及预测可行性，探讨建立基于BP神经网络的预测模型的关键技术，包括样本的选取与预处理、输入输出变量的选取、隐层节点数的确定、初始权值和阈值的选取、激活函数、训练算法与参数的选取，最后建立合理的网络模型；结合住宅市场的实际情况，建立两类BP 神经网络预测模型：基于时间序列的趋势预测模型以及基于影响因素的回归预测模型，即分别采用神经网络趋势预测和回归预测的思路，把住宅市场的供给、需求与房价的历年数据以及其影响因素的数据分别作为学习样本，建立预测模型，进行预测。(Real estate development risk prediction )

上传Matlab源代码程序，希望对下载的人有所帮助(Upload Matlab source code procedures in the hope that the right people download help)

通过调用MATLAB的FDATOOL工具实现hilbert滤波器，并生成Verilog文件。(Hilbert filter realized by calling the MATLAB FDATOOL tool and generates Verilog file.)

说明：  关于中继选择性能的仿真，实现对中断概率，信噪比，碰撞概率的测量(Measurement on the relay selection performance of the simulation, the probability of outage probability, signal-to-noise ratio, collision)

搜索算法是利用计算机的高性能来有目的的穷举一个问题的部分或所有的可能情况，从而求出问题的解的一种方法(search algorithm is the use of high-performance computer to a purpose of an exhaustive part or all of the possible , and to obtain the solutions of the problems a method)

《系统辨识与MATLAB仿真-侯媛彬》源程序(" System Identification and MATLAB simulation- Houyuan Bin" source)