Band—limited信号可以用Sinc函数整平移的线形组合表示,即Band—limited函数属于由Sinc函数生成 的平移不变子空间.Hilbert变换是非平稳信号时频分析的工具.对任何实信号厂(t),其Hilbert变换定 义为 1 .. f . 该变换的物理性质是不改变谐波波形.众所周知的~cosat=sinat,则eosat+i,,~cosat:e ...
cavity, we got spectral correlations over 19 frequency bins but only seven HOM-interference recurrences. This result is in keeping with the scaling associated with Fourier-transform duality, i.e., more time bins imply fewer frequency bins and vice versa. In additional tests of the 45.32-GHz-ca...