地面数字电视广播发射机自动测试系统  

Automatic Test System of Digital Terrestrial Television Broadcasting Transmitters

作　　者：康建华[1] 安元伟[1] 佘方毅[1] 张桂卿[1] 

机构地区：[1]国家广播电影电视总局广播科学研究院,北京100045

出　　处：《成都信息工程学院学报》2011年第3期312-317,共6页Journal of Chengdu University of Information Technology

基　　金：国家广播电影电视总局广播科学研究院2011基本科研业务费资助项目

摘　　要：频谱仪是测量地面数字电视广播发射机的必需仪器,提出了基于LabVIEW的虚拟仪器技术,实现了对频谱仪的软件自动控制。通过使用平铺式顺序结构,将各个单独测量模块组合起来,将分布式的测试转换为连续的自动测试,运用数据操作技术,实现了测量结果的获取和保存。测试结果表明,系统运行准确可靠,具有很好的实用性和推广性。Spectrum analyzers are necessary equipments to measure digital terrestrial television broadcasting transmit- ters. This paper proposes a virtual instrument technology based on LabVIEW, and achieves the automatic control on spectrum analyzer by software. By using the flat sequence structure, first of all, we assemble each individual test module, then, tra-nsform the distributed test to the continuous and automatic test, finally, achieve the acquisition and preservation of test results by using data manipulation technology. Test results show that the system is accurate and reliable, with good pract-icability and generalized.

关 键 词：LabVIEW GPIB 虚拟仪器 发射机 频谱仪 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]