CAJ | 학술논문

本课题在对调制解调系统有充分的了解和完善的设计下，利用LabVIEW、Multisim进行调幅/频虚拟仿真，得到调制信号、载波信号、解调信号波形，并在NI原型实验板上搭建电路，在NI ELVISmx Instrument Launcher上进行硬件测试，将对仿真结果和实际电路测试所得数据进行分析比较。最后开发出一套基于虚拟仪器技术的通信电路演示实验系统，使得学生加深对简单通信系统的结构认识，有助于学生对该部分知识的理解应用。本项目结合了我校虚拟实验系统项目的建设，对实验教学的改革，启发式教学的进行，学生创新意识的培育具有重大意义。
본과제재대조제해조계통유충분적료해화완선적설계하，이용LabVIEW、Multisim진행조폭/빈허의방진，득도조제신호、재파신호、해조신호파형，병재NI원형실험판상탑건전로，재NI ELVISmx Instrument Launcher상진행경건측시，장대방진결과화실제전로측시소득수거진행분석비교。최후개발출일투기우허의의기기술적통신전로연시실험계통，사득학생가심대간단통신계통적결구인식，유조우학생대해부분지식적리해응용。본항목결합료아교허의실험계통항목적건설，대실험교학적개혁，계발식교학적진행，학생창신의식적배육구유중대의의。
Under the circumstance of abundant comprehension and perfect design of modulation system and demodulation system, this project make virtual simulations of amplitude/frequency modulation using LabVIEW and Multisuim to obtain the modulated wave, carrier wave and demodulated wave. We constructed the circuit on the NI experimental board of its prototype, making hard?ware tests on NI ELVISmx Instrument Launcher. The results obtained from simulations were analized and compared with statitics acquired from tests of real circuits. Finally, in order to make students develop more profound acknowlegde of the structure of sim?ple communication system and be helpful to the comprehension and application of knowledge in this part, we develop a whole ex?perimental system for demonstration of communication circuits experiments based on technologies of virtual instruments. Com?bined with the project of the construction of virtual experimental system in our school, this project is of great significance to the rev?olution of experimental teaching, the conduct of the heuristic method of teaching and innovation consciousness of students.