数字信号分析仪是利用数字技术对输入信号的频谱、相关函数、功率谱密度等进行分析的仪器。
以数字信号处理器DSP研制便携式旋转风机故障诊断分析仪，并详细阐述了系统的硬件结构以及软件设计思想。
Digital signal processor (DSP) was adopted to design portable rotating air blower fault diagnosis instrument, and the system hardware structure and the software designing ideas were expounded.
由数据采集卡收集到得现场信号，经过所设计的频谱分析仪对采集到的数字信号进行分析。
When the data acquired in DAQ is analyzed in the designed spectrum analyzer, the result demonstrates the accuracy and the flexibility of the system.
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