2 time). This collection is termed the phase history data. Since wideband modulation
techniques, such as the Linear Fre quency Modulated (LFM) chirp waveform, are normally …

Relatively small motion measurement errors manifest themselves principally as a phase
error in Synthetic Aperture Radar (SAR) complex data samples, and if large enough become …

Conventional motion compensation schemes correct for unwanted SAR platform motions
using information from an inertial measurement unit (IMU). Autofocus techniques, which …

In synthetic aperture radar (SAR), the deviations of the platform motion away from a straight
line degrades the achievable SAR image quality. This problem is particularly acute for …

BACKGROUND 0003. The present invention relates to processing tech niques, and more
particularly, but not exclusively, relates to focusing synthetic aperture radar. 0004 …

A strip-map Synthetic Aperture Radar (SAR) auto-focus image generation process is
provided. Batches of raw radar return data are processed in order to form batch images …

Motion measurement errors that extend beyond the range resolution of a synthetic aperture
radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in …

Abstract Synthetic aperture radar (SAR)[1, 2](and other imaging systems) measures the
complex Fourier transform (called the signal history or phase history) of the scene being …

High quality focused SAR imaging dictates that the relative phase error over an aperture
must be kept below a fraction of a wavelength. On most deployed SAR systems the internal …

Due to the accuracy limitation of the navigation system, deviations between the real
trajectory and the measured one appear inevitably in airborne synthetic aperture radar …