In certain signal processing applications it may be required to reconstruct a spatial domain image from samples of its Fourier transform. For problems such as this it may be useful to use the dual of the well-known discrete-time Fourier transform (DTFT) for purpose of analysis and design. The dual concept, called the discrete frequency Fourier transform (DFFT), is shown to be a useful transform in its own right. In addition to being useful for certain physical problems, the DFFT fills a gap in the theory and aids the designer in understanding problems which have inherently sampled frequency domains.
|Original language||English (US)|
|Number of pages||2|
|Journal||Proceedings - IEEE International Symposium on Circuits and Systems|
|State||Published - Dec 1 1985|
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering