Smear signature morphology of surface targets with arbitrary motion in spotlight synthetic aperture radar imagery
Garren, David Alan
MetadataShow full item record
This study develops a methodology for analytically predicting the detailed smear signature morphology of surface targets with arbitrary motion in spotlight synthetic aperture radar (SAR) imagery. The radar sensor is assumed to move with constant speed and heading on a level ﬂight path with broadside imaging geometry. Cases of uniform target motion exhibit morphology of simply curved smear shapes, as has been reported previously. However, the present analysis shows that non-uniform target motion can cause complicated smear shapes in spotlight SAR imagery. Speciﬁcally, the method of stationary phase is applied to local subaperture SAR images to yield analytic non-parametric expressions for the morphology of smear signatures within spotlight SAR imagery for surface targets with arbitrary motion trajectories. This predictive capability offers the potential of extracting some characteristics of true target motion based upon the induced SAR smear signatures alone.
The article of record as published may be found at http://dx.doi.org/10.1049/iet-rsn.2013.0169
Showing items related by title, author, creator and subject.
Theory of two-dimensional signature morphology for arbitrarily moving surface targets in squinted spotlight synthetic aperture radar Garren, David Alan (IEEE, 2015);This paper develops analytic equations for predicting the smear signature morphology due to surface targets having arbitrary motion within squinted spotlight synthetic aperture radar (SAR) imagery. A power-series expansion ...
Signature morphology effects of squint angle for arbitrarily moving surface targets in spotlight synthetic aperture radar Garren, David Alan (IEEE, 2015-11);This investigation examines the phenomenology effects of the squint angle on the morphology of moving target smears in spotlight synthetic aperture radar (SAR). This analysis includes both the smears resulting from standard ...
Wright, William Archer (Monterey, California. Naval Postgraduate School, 1991-12);Passive microwave satellite data provides all-weather, continuous observations of the polar ice cover. Multichannel radiometer data sets extending back to 1978 are readily available and distributed on CD-ROM media. ...