Journal article
Super-resolved time-frequency analysis of wideband backscattered data
A time-frequency super-resolution procedure is presented for processing wideband backscattered data containing both scattering center and natural resonance information. In this procedure, Prony's method is first applied in the frequency domain to locate scattering centers. The data is processed one slice at a time through the use of a sliding window function.
Parameterized models for the scattering centers are obtained by a weighted average of the results from each segment. A similar procedure is used in the time domain to fully parameterize the natural resonances. In contrast to other time-frequency techniques, the time-frequencg display from the present super-resolution procedure is not constrained in resolution by the Fourier limit
| Language: | English |
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| Publisher: | IEEE |
| Year: | 1995 |
| Pages: | 623-626 |
| ISSN: | 15582221 and 0018926x |
| Types: | Journal article |
| DOI: | 10.1109/8.387179 |
Displays Electromagnetic scattering Fourier limit Frequency domain analysis Prony's method Radar scattering Resonance Scattering parameters Signal resolution Strips Time frequency analysis Wideband backscatter electromagnetic wave scattering natural resonance information parameter estimation parameterized models scattering center information signal resolution slice sliding window function superresolved time-frequency analysis time-frequency analysis time-frequency super-resolution procedure wideband backscattered data
