bpsk

一些黑客毁坏别人的文件甚至整个硬盘，他们被称为电脑狂人（crackers）或计算机破 坏者（vandals）。另一些新手省去学习技术的麻烦，直接下载黑客工具侵入别人的计算机， 这些人被称为脚本小子（script kiddies）。而真正有着丰富经验和编程技巧的黑客，则开发黑 客程序发布到网站或论坛（BBS）。还有一些人对黑客技术没有丝毫兴趣，他们把计算机仅 仅当做窃取金钱、商品和服务的辅助工具。(Some hackers destroy other people)

机器人标定,基于POE公式的机器人几何参数标定(Robot calibration, calibration of robot geometric parameters based on POE formula)

说明：  python工具书查询,之前看到的，资料还不错，可以参考学习下(Reference books for python)

说明：  CPU读卡器的设计参考，实现CPU卡读写，以及NFC读卡需要的参考资料。(According to the design of CPU card reader, it realizes the reading and writing of CPU card and the basic reference for NFC card reading.)

HVDC and FACTS Controllers - Applications of Static Converters in Power Systems (Power Electronics and Power Systems)(HVDC and FACTS Controllers- Applications of Static Converters in Power Systems (Power Electronics and Power Systems))

4—20mA电流变送器设计电路，说明的非常详细。保你一看就会。(4-20mA current transmitter circuit design, described in great detail. Will ensure you a look.)

Python程序设计与算法基础教程，利用Python进行ABAQUS的二次开发(Python Basic Course of Programming and Algorithms, Secondary Development of ABAQUS with Python)

国外大学的讲义，对学习这2种效应基础理解很有帮助，pdf文档中有matalb代码带你一步一步的学习，很值得推荐。(Multipath and Doppler Effects and Models,very useful document of understanding the basic principle with its matlab code .)

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.)

f16的非线性模型设计，也许对你有用。MATLAB的，里面有配套说明(Nonlinear_F16_Fighter_Model)