基于图形化编程语言LabVIEW8.6的虚拟频谱分析仪，主要由信号发生器、数字滤波、参数测量、频谱分析和谐波分析构成，可实现对采样信号的显示、分析等功能.-This program designs the virtual spectrum analyzer based on graphical programming language LabVIEW8.6, the spectrum analyzer is mainly by the signal generator, spectrum analysis and digital filtering, parameter measurement, harmonic analysis, which can realize the sampling signal display, analysis, and other functions. Reliable operation, good performance.