A Short-Segment Fourier Transform Methodology
Final technical rept. Dec 2006-Dec 2008
AIR FORCE RESEARCH LAB ROME NY INFORMATION DIRECTORATE
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A short-segment Fourier-transform methodology is introduced. This method addresses the problem of reduced frequency resolution associated with desirable decreases in data segment lengths for accomplishing spectral analyses of sampled signals and data sequences. The method is characterized by user-defined sampling of the continuous-valued discrete-time Fourier transform, superresolution in the frequency domain and allowance of Dirac delta functions associated with pure sinusoidal input data components.
- Numerical Mathematics