Detection and velocity estimation of moving vehicles in high-resolution spaceborne synthetic aperture radar data

Abstract

-Automatic estimation of traffic parameters has evolved to an important topic of research. Current and upcoming SAR satellite missions offer new possibilities for traffic monitoring and control from space as an alternative to conventional traffic data acquisition. In this paper a detection approach is presented which evaluates simultaneously the effects moving objects suffer from in the SAR focusing process. Information about the measured signal and the expected signal are utilized in the detection framework. Analyses of the proposed technique are done with real spaceborne SAR data.

Moving Target Indication via RADARSAT-2 Multichannel Synthetic Aperture Radar Processing

“…Although first advertised in [11] as GMTI capable SAR satellites with a few proposed modifications, COSMO Sky-Med have yet to produce their first GMTI results. TerraSAR-X and RADARSAT-2, on the other hand, have collected numerous GMTI data and the results have been published in several papers, for example, [12][13][14][15][16][17][18][19].…”

“…The best focus is achieved by searching for a fractional parameter α that maximizes the DPCA output of the target. Combining (18) and (57a) into (58) and integrating to maximize the target signal in the fractional Fourier domain yield…”

Directional Moving Target Indication: A Novel SAR Ambiguity Function for Traffic Monitoring

“…Many recent publications address the problem of civil traffic monitoring using spaceborne and airborne Synthetic Aperture Radar (SAR) [1][2][3][4][5][6][7][8]. The main reasons for this growing attention are its all weather capability and large spatial coverage, which contrasts with those of conventional traffic monitoring sensors.…”