The problem of very high resolution Inverse Synthetic Aperture Radar (ISAR) imaging of moving targets is considered. In particular, the focus of the paper is on the estimation of those parameters concerning the target rotation motion, needed to correctly focus and scale the target images. To this aim, two new estimation techniques are proposed based respectively on the Maximum Likelihood and Constrast Optimisation criteria. Both cases of constant and variable rotation rate are considered. A complete theoretical performance analysis and examples of application to very high resolution live ISAR data are provided showing the effectiveness of the proposed approach. © 2008 IEEE.
Rotation motion estimation for high resolution ISAR and hybrid SAR/ISAR target imaging / Pastina, Debora. - (2008), pp. 1-6. (Intervento presentato al convegno 2008 IEEE Radar Conference, RADAR 2008 tenutosi a Rome; Italy nel 26 May 2008 through 30 May 2008) [10.1109/radar.2008.4721055].
Rotation motion estimation for high resolution ISAR and hybrid SAR/ISAR target imaging
PASTINA, Debora
2008
Abstract
The problem of very high resolution Inverse Synthetic Aperture Radar (ISAR) imaging of moving targets is considered. In particular, the focus of the paper is on the estimation of those parameters concerning the target rotation motion, needed to correctly focus and scale the target images. To this aim, two new estimation techniques are proposed based respectively on the Maximum Likelihood and Constrast Optimisation criteria. Both cases of constant and variable rotation rate are considered. A complete theoretical performance analysis and examples of application to very high resolution live ISAR data are provided showing the effectiveness of the proposed approach. © 2008 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
