… In this letter, a novel MOCO algorithm based on Doppler adjust… compensate the azimuth
variant motion error. The change of the Doppler spectrum caused by the azimuth variant motion …

… severe track deviations for high-resolution synthetic aperture radar imaging. In this paper,
a … of the azimuth-variant motion errors by exploiting a precise angle-to-Doppler relationship …

… -variant motion error, the aperture-dependent motion error is … LOS motion error, azimuth
motion error varies with azimuth … have been compensated with the zero-Doppler motion error. …

… along the azimuth dimension of airborne SAR images. It is … direction, because the forward
velocity V r ( η ) is time-variant… Caused by motion error, radar samples the echo deviating …

… Doppler centroid are performed, by which the echo signal is decoupled into two spatially
variant parts in range and azimuth … remove the range and azimuth spatial variations introduced, …

… used in synthetic aperture radar (SAR) systems to overcome … studied in the airborne SAR
imaging based on the extended … the azimuth direction, making the space-variant phase error …

… as Doppler … motion error compensation problem to limit the azimuth resolution loss. To this
end it is convenient to separate ±r into range space invariant (at the scene center) and variant …

… time delay Atp from the radar to the point at the azimuth time η. … motion error can be expressed
as the slant-range variation. At the azimuth time η, the slant distance from the actual radar …

… azimuth direction (somewhat equivalent to the presence of a Doppler centroid) and a variation
of the azimuth … we observe an azimuth shift of one-fourth of the azimuth resolution cell with …

… range space-variant motion errors based on radar raw data has … -variant motion error and
azimuthal space-variant motion error, … Wang, “Autofocus algorithm for SAR imagery based on …