Spatial-Temporal Differential Analysis for GMTD with Airborne Radars, Part 1: Theoretical Background

Spatial-Temporal Differential Analysis for GMTD with Airborne Radars, Part 2: First Experimental Results

“…Further details such as notations, coordinate system, and assumptions can be found in [1]. These equations were derived for addressing a specific measurement objective, which is to identify the range bins where ground-moving targets are present.…”

“…In our accompanying paper [1], we introduced a conceptually new approach to processing multiple synchronized radar signals. This approach termed spatial-temporal differential analysis (STDA) takes advantage of spatial (from receiver to receiver) and temporal (from pulse to pulse) scintillations in the instantaneous power of the diffraction pattern on the radar antenna.…”

“…The scintillations are regarded as a nuisance effect by conventional signal analysis techniques such as space-time adaptive processing (STAP), one of the most advanced spectrum-based techniques for ground-moving target detection (GMTD) in heavily cluttered environments. A specific GMTD task was considered in [1] as an example of the application of STDA to multi-channel airborne radars. A simplified structure function (SF)-based technique applied in the time domain only was presented there.…”

“…Using a SF-based STDA technique [1], we processed the MCARM file rd050575, obtained from flight 5, cycle d, and acquisition 575. This acquisition has been analyzed with several STAP variants in previous studies, and the first experimental results with STDA are presented in this paper.…”

“…In section 2 we introduce the MCARM database and describe the analyzed file rd050575. In section 3 we reproduce from [1] the SF-based equations for GMTD and derive simple ground-moving target indicators from these equations. We demonstrate the potential ability of these indicators to detect ground-moving targets and measure directly the a posteriori false alarm rate for the detected targets from actual radar signals.…”