Requirements for Improved Resolution

The word “resolution” is often assumed to refer to the specific case of temporal resolution. In that regard, Kallweit & Wood (1982) observed that when two octaves of bandwidth are present, the limit of temporal resolution can be expressed as 1/(1.4 x FMAX ). However, equally important is the issue of spatial resolution. One of the methods proposed by Berkhout (1984) for quantifying spatial resolution is via the use of the “spatial wavelet”. Such wavelets demonstrate that better temporal resolution leads to better spatial resolution. A key point in this paper, though, is that this relationship works the other way too. That is, better spatial resolution leads to better temporal resolution.