Rapid Detection of Deformation Anomalies along the China–Laos Railway Using InSAR Phase Gradient Stacking
The Kunming–Mohan section of the China–Laos Railway traverses complex mountainous terrain, making the rapid identification of deformation-prone areas essential for long-term operational safety. This study applied phase gradient stacking (PGS) to 200 wrapped differential interferograms generated under small-baseline cri...