Multi-Information Model for PCB-Based ElectronicsProduct Manufacturing

Most electronics products use PCB to carry electronic circuits. This paper classifies information contained in PCB-based electronic circuits into several models: geometry model, physics model, performance model and function model. Based on this classification, a multi-information model of product is established. A composite model of product is also created based on object-orientation and characteristics of the product. The model includes a 3D geometry model, a physics model with integrated information that can be divided into microscopic and macroscopic information, a generalized performance model and a function model that are from top to bottom. Finally, a multi-unit analysis is briefly discussed.     

基于MATLAB的现代控制理论教学改革

现代控制理论是大学电气控制、机电一体化等专业重要的基础课程,本文根据目前该课程在教学中存在的问题,提出了将引入现代控制理论课程教学的教学改革思路,介绍了控制系统仿真软件MATLAB的特点和功用,最后分析并用实践证明了该教学改革思路的可行性。     

基于MATLAB的语音信号时频域参数分析

本文针对语音信号时域、频域参数进行了系统详尽的分析,提出了一种语音信号时频域参数模块化的思路,并利用SIMULINK实现语音信号频域实时参数分析仿真。