As an important technology in the field of computer-aided test, virtual instrument technology is the product of combination of modern computer technology and instrument technology. This paper introduced the design of the virtual spectrum analyzer based on B/S model. This virtual spectrum analyzer is mainly used for analyzing signal with noise which is produced by signal generator. The virtual spectrum analyzer consists of signal generator, digital filter, parameter measurement, frequency spectrum analysis, harmonic analysis and remote network monitor. The experiments showed that the virtual spectrum analyzer can realize functions such as the sampling signal display, analysis, remote network control. The virtual spectrum analyzer works smoothly with satisfactory results and reliable performance.%虚拟仪器技术是现代计算机技术和仪器技术深层次结合的产物,是计算机辅助测试领域的一项重要技术.介绍了基于B/S模式图形化编程语言Lab-VIEW9.0的虚拟频谱分析仪的设计,该虚拟频谱分析仪主要用于分析由信号发生器产生的带噪声信号.该虚拟频谱仪主要由信号发生器、数字滤波、参数测量、频谱分析、谐波分析和远程网络监控模块组成,可以实现对采样信号的显示、分析、远程网络监控等功能,并且运行可靠、性能良好,分析结果正确.
展开▼
