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公开(公告)号:US4321680A
公开(公告)日:1982-03-23
申请号:US142719
申请日:1980-04-22
CPC分类号: G06F17/141
摘要: A spectrum analyzer for FFT analyzing and displaying the frequency spectrum of a digital signal over a given frequency band (background), as well as over a more limited frequency band (foreground). The spectrum of the signal over each frequency band is calculated and displayed so as to appear on a screen as a simultaneous display. The position of the limited frequency band as well as the width thereof, may be varied.
摘要翻译: 用于FFT分析和显示给定频带(背景)上的数字信号的频谱以及更有限的频带(前景)的频谱分析仪。 计算并显示每个频带上的信号的频谱,以便作为同时显示出现在屏幕上。 有限频带的位置及其宽度可以变化。