Maximum entropy estimation of radar clutter spectra
Abstract
The maximum entropy method (MEM) of spectral analysis is briefly described, and its properties are compared with those of conventional methods of spectral analysis. Examples are provided which involve the analysis of both computer-simulated and recorded clutter data. The clutter model proposed by Hawkes and Haykin (1975) is considered for analysis of simulated signals. The results indicate that in the spectral analysis of radar clutter, the MEM has an advantage over linear methods in that it gives a more reliable estimate and higher spectral resolution for a small number of clutter data samples. It is thus possible to get a good spectral estimate in a range-azimuth cell from the data obtained in one antenna scan only. MEM may be used for on-line classification of different clutter sources.
- Publication:
-
NTC 1978; National Telecommunications Conference, Volume 2
- Pub Date:
- 1978
- Bibcode:
- 1978ntc.....2...18K
- Keywords:
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- Clutter;
- Entropy;
- Radio Spectra;
- Signal Analysis;
- Spectrum Analysis;
- Birds;
- Computerized Simulation;
- Ground Effect (Communications);
- Maxima;
- Radar Echoes;
- Signal Processing;
- Communications and Radar