声音信号SFFTmatlab程序

说明：  kdd cup99 数据集，一种用来做入侵检测的数据集。并附代码处理。(KDD CUP99 data set, a data set used for intrusion detection. Code processing is attached.)

说明：  2020年F题--飞行器质心平衡供油策略优化的相关编程程序，该程序针对磁体有良好的供油效果(F question 2020 -- Programming program for optimization of oil supply strategy for aircraft centroid balance. This program has a good oil supply effect for magnets)

说明：  android手机端对各类型文件加解密，同时对所用算法进行选择(Encryption of all types of files on Android phone)

ABAQUS文档是软件开发使用和维护中的必备资料。 软件文档或者源代码文档是指与软件系统及其软件工程过程有关联的文本实体。文档的类型包括软件需求文档，设计文档，测试文档，用户手册等。其中的需求文档，设计文档和测试文档一般是在软件开发过程中由开发者写就的，而用户手册等非过程类文档是由专门的非技术类写作人员写就的。 文档能提高软件开发的效率，保证软件的质量，而且在软件的使用过程中有指导、帮助、解惑的作用，尤其在维护工作中，文档是不可或缺的资料。(The ABAQUS documentation is an essential piece of information for software development use and maintenance. A software document or source code document refers to a text entity associated with a software system and its software engineering process. The types of documents include software requirements documents, design documents, test documents, user manuals, etc. The requirements document, design document and test document are generally written by developers in the process of software development, while non-process documents such as user manuals are written by specialized non-technical writers. Documents can improve the efficiency of software development, ensure the quality of software, and have the role of guidance, help, and ambiguity in the use of software. Especially in the maintenance work, documents are indispensable materials.)

数字摄影测量系统,主要功能有内定向、相片纠正、后方交会和前方交会、连续像对相对定向和绝对定向、单独像对相对定向和绝对定向、一步法定向。-Digital photogrammetric system, the main function in orientation, photo correction, resection and intersection in front of a row as the relative orientation and absolute orientation, relative orientation, as a separate and absolute orientation, one-step orientation.

说明：  用matlab对一段音频信号进行采样，并用PCM编码后通过2FSK调制模拟信道传输，最后经过2FSK解调和PCM解码恢复音频信号(Matlab is used to sample a section of audio signal, PCM is used to code it, then it is transmitted through 2FSK modulation analog channel, and finally it is demodulated by 2FSK and decoded by PCM to recover the audio signal)

描述了在高斯白噪背景下，对直扩信号进行检测所采用的方法和仿真流程。-Describes the Gaussian white noise in the background, on the Direct Sequence Spread Spectrum Signal detection methods and simulation process.

基于c语言的单片机控制电机及矩阵键盘控制，适用于单片机初学者(MCU control motor and matrix keyboard)

制作精良的ppt，独具匠心的编排顺序，让你从Endnote菜鸟变成熟练掌握该软件的大虾。节省你精读600页英文说明书的时间。（Endnote10版本请自行下载） 简介： 教程主要分四个部分： 1.文献导入方法 2.文献管理统计 3.Ms Word中使用Endnote 4.高级功能介绍及疑难问题 基本涵盖了日常需用到的所有功能，是作者通读各Endnote10中英文教程后的总结，希望能对大家有帮助。 -Well-made ppt, original scheduling order, so that you get from rookie endnote become master bully of the software. Save your instructions in English 600 reading time. (Endnote10 version of your own to download) Description: Course is divided into four main parts: 1. Literature into Method 2. 3.Ms Word Document management using statistical Endnote4. Advanced features and troubleshooting basic introduction covers all the necessary day-to-day function, the author read through the tutorials in English and Chinese Endnote10 after summing up the hope that it can be helpful to everyone.

C#获取Windows属性信息，比如获得Windows用户名、操作系统版本、计算机名、Windows版本号、Windows启动方式、网络是否连接、显示器数量及分辨率等信息。