Spectrum analyzer with frequency band selection
    1.
    发明授权
    Spectrum analyzer with frequency band selection 失效
    频谱分析仪带频段选择

    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。