研究目的
Investigating the performance of ground moving targets detection by means of ATI-SAR systems using a statistical approach on both simulated and real data.
研究成果
The GLRT approach for detecting moving targets in ATI-SAR systems shows promising results, with performance comparable to the theoretical LRT for high SCR and velocity values. The method is validated on both simulated and real TSX data, demonstrating its applicability for traffic monitoring and other GMTI applications.
研究不足
The study assumes a Gaussian clutter model and a deterministic target response, which may not always be valid in heterogeneous scenes like urban areas. The performance degrades for low SCR and velocity values, and the estimation accuracy of target parameters affects the detection performance.
1：Experimental Design and Method Selection:
The study employs a statistical approach for detecting moving targets using ATI-SAR systems, assuming a Gaussian clutter model and a deterministic target response. The performance of LRT and GLRT detectors is analyzed.
2：Sample Selection and Data Sources:
The analysis is carried out on both simulated data and real data from TerraSAR-X (TSX).
3：List of Experimental Equipment and Materials:
The study utilizes ATI-SAR systems, specifically TSX data, for the analysis.
4：Experimental Procedures and Operational Workflow:
The methodology involves simulating SAR images with moving targets and stationary clutter, applying LRT and GLRT detectors for target detection, and analyzing the detection performance.
5：Data Analysis Methods:
The performance is evaluated in terms of probability of detection (PD) and false alarm rate (PFA), with ROC curves used to assess the detectors' effectiveness.
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