3540212973.pdf

次同步振荡，论文对同步发电机建模，串补建模，信号测试法都有较清晰的说明。(Subsynchronous oscillation, the paper has clear explanation for synchronous generator modeling, series compensation modeling and signal test method.)

电磁计算中的矩量法的相关理论及技术，含有部分代码，适合初学者学习(Electromagnetic computation method of moments related theory and technology, with part of the code, suitable for beginners to learn)

Interference Analysis and Reduction for Wireless Systems.pdf

宾.杨（Bin Yang）的PAST算法（投影近似子空间跟踪算法）原文翻译.(PAST rotation invariance is used to solve the angle signal, This algorithm uses the minimum two multiplication to estimate the incidence angle)

This is an introduction to BRDF Based Lighting PDF document

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)

说明：  LabVIEW程序设计的相关书籍，用于LabVIEW程序设计开发，很好的一本参考书籍(LabVIEW programming related books, for LabVIEW programming development, a good reference book)

control system engineering ogata

windows驱动程序开发的简单介绍，简要概括了windows驱动开发的环境，工具(windows driver for the development of a simple introduction, a brief summary of windows driver development environment, tools)

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.)