MC1496 multisim实现AM

量子物理中的重要教程，赵光达写的量子场论，非常实用(The importance of quantum physics tutorial written by Zhao of quantum field theory, very practical)

学习digslent非常有用资料，相信对大家有所帮助。(Learn digslent very useful information, I believe we will help you.)

How to make ticketing application

一个HTML文件是一页文字信息，就象一封电子邮件或一个word字处理文档，而且实际上你完全可以使用Word字处理软件来编写一个HTML网页。你也可以通过其它字处理软件编写文本文件，网络浏览器只能处理文本信息。 (An HTML file is a text message, an email or a word as word processing documents, and in fact you to write a complete HTML page can use Word word processing software. You can also write a text file by other word processing software, web browsers can handle only text messages.)

本文通过对男性和女性声音的语音特征的研究，发现男女声的基音频率存在较大的差异，并设计了基于基音频率分析的男女声识别系统。男女声识别系统由以下三个模块电路构成：话筒放大器，低通滤波器，半波整流电路，单片机测量控制模块。话筒放大器采用NE5532P音前置芯片，对语音信号进行放大；八阶低通滤波器MAX293完成基音信号的提取；单片机STC12C5410AD实现频率测量和控制输出功能。经仿真与电路实测，男女声的识别效果良好。(In this paper, the voices of male and female voice characteristics of the findings of a study of the fundamental frequency of the sound of men and women there is a big difference, and the design of frequency analysis based on the pitch of the voice recognition system for men and women. Voice Recognition System for men and women from the circuit the following three modules: the microphone amplifier, low-pass filter, half-wave rectifier circuit, single-chip measurement control module. NE5532P sound using the microphone pre-amplifier chip amplification of voice signals eight MAX293-order low-pass filter to complete the extraction of pitch signal STC12C5410AD single-chip realization of the frequency of measurement and control output. By circuit simulation and measurement, the identification of male and female voices well.)

安捷伦频谱仪 编程测试纲要 安捷伦频谱仪 编程测试纲要(Aigent test)

103规约测试教程，希望大家喜欢哦。。。(The 103 statute of the test.)

高斯烟羽模型2D的Python实现。用于污染物/危险物品扩散分析。(Gauss plume model 2D Python implementation. For the analysis of pollutant diffusion/dangerous goods.)

清华现代数字信号处理参考书籍、课程重点及复习大纲，清华电子工程系张颢(Tsinghua modern digital signal processing reference books, course outlines priorities and review, Tsinghua Electronic Engineering Zhang Hao)

说明：  《Python数据挖掘入门与实践》 本书为数据挖掘入门读物，介绍了数据挖掘的基础知识、基本工具和实践方法，通过循序渐进地讲解算法，带你轻松踏上数据挖掘之旅。本书采用理论与实践相结合的方式，呈现了如何使用决策树和随机森林算法预测美国职业篮球联赛比赛结果，如何使用亲和性分析方法推荐电影，如何使用朴素贝叶斯算法进行社会媒体挖掘，等等。本书也涉及神经网络、深度学习、大数据处理等内容。(Introduction and Practice of Python Data Mining)