摘要:傅里叶变换是信号分析的基础,该文从傅氏变换基本公式出发,介绍了如何利用声表面波chirp器件实现实时傅氏变换器的方法,同时给出了分析带宽大于40MHz的样品对不同信号的测试波形图.文中进一步探讨了提高分析带宽和瞬时动态的措施.
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