Moving Target Relative Speed Estimation in the Presence of Strong Stationary Surrounding Using a Single Antenna UWB SAR System

Abstract

This paper investigates how relative speed estimation of moving targets in Synthetic Aperture Radar (SAR) images is affected by strong stationary surrounding clutter. The result extends previous work by estimating moving target relative speed under the influence of clutter and Gaussian noise. The results obtained show that good estimates can be obtained even in situations with relatively high clutter and noise, i.e. SNR and SCR lower than 10dB.

Moving Target Relative Speed Estimation and Refocusing in Synthetic Aperture Radar Images

“…In [29], a moving target and a stationary scatterer were placed at the same position in the SAR image and the estimation accuracy was investigated by comparing if C was based on the contributions from n or on assuming n to be white noise. The results did not indicate any difference between the two cases unless in a special case when the image was formed for γ p = 1.…”