Tower/turntable ISAR measurements of a tank, an air defence unit (two versions) and an armoured personnel carrier are analyzed to study the behaviour of polarimetric ATR features (automatic target recognition) as a function of resolution. For comparison, also three non-polarimetric features are included in the analysis. The commonly agreed assumption is confirmed that the polarimetric properties of individual resolution cells are the better pronounced the higher the resolution is. However, this does not necessarily mean that the ATR capacity of features derived from these polarimetric properties is increased with resolution as well. The criterion that is used to quantitatively assess the separability of ATR features is the Kolmogoroff-Smirnow distance between feature probability density functions. The results depend strongly on the type of target, the type of feature and the aspect angle. A general strong dependence on resolution only cannot be confirmed, which loosens the requirements on resolution that an intelligent seeker or reconnaissance UAV has to meet.
Polarimetry and high resolution as key features for millimeter wave automatic target recognition
GRS, German Radar Symposium, 2000 ; 283-287
2000
5 Seiten, 3 Bilder, 1 Tabelle, 5 Quellen
Aufsatz (Konferenz)
Englisch
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