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提出一种基于虚拟仪器技术的多通道FFT频谱分析仪设计方案,分析虚拟仪器技术在频谱分析仪设计上的主要流程。给出设计的频谱分析仪组成框图和各模块需要完成的功能实现,重点分析传感器模块、采集模块和嵌入式系统等三个关键模块实现原理与设计优化,最后对仪器的总体性能进行测试与分析。结果证明该方案简单实用,具有较高的性价比。
A design scheme of multi-channel FFT spectrum analyzer based on virtual instrument technology is proposed and the main flow of the design of spectrum analyzer based on virtual instrument technology is analyzed. The design of the spectrum analyzer block diagram and the various modules to be completed to achieve the function, focusing on the sensor module, acquisition module and embedded system, three key modules to achieve the principle and design optimization, and finally the overall performance of the instrument for testing and analysis . The results show that the program is simple and practical, with a high cost.