This brief paper examines the most important differences between the responses of the Fast Fourier Transform (FFT) and Polyphase Discrete Fourier Transform (DFT) filter banks. In general, while the ...
You can build filters using polyphase DFT (discrete Fourier transform) cores that are now available as off-the-shelf IP (intellectual property) from UK signal-processing company RF Engines. The cores ...
This article discusses the application of SPIP™ Extended Fourier analysis module for interpreting surface structures and distortions. The SPIP™ software allows users to detect and measure atomic ...
The electronic charge density distribution or the electrostatic atomic potential of a solid or molecule contains information not only on the atomic structure, but also on the electronic properties, ...
Figure 1: 3D reconstruction of a multiply twinned Pt nanoparticle before and after applying a 3D Fourier filter. Figure 2: Grain boundary comparisons between a 2D experimental projection and several 2 ...
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