Jul 2026· Electronics· Vol 15, pp. 2929· 0 citations
Abstract
Global Navigation Satellite System Reflectometry Interferometric Synthetic Aperture Radar (GNSS-R InSAR) offers all-weather, all-day observation capabilities and high temporal resolution, enabling elevation deformation monitoring with a single satellite. However, in hazardous regions, such as tailings dam slopes, measuring the deformation of a greater number of target points is essential for a more accurate assessment of geological hazard risks. Since navigation satellite signals are not originally designed for imaging purposes, their inherent narrow bandwidths result in low spatial resolution and limited target recognition capabilities, rendering them inadequate for such scenarios. To address these limitations, this paper investigates a GNSS-R InSAR deformation measurement architecture utilizing dual-frequency BeiDou-3 (BDS-3) signal fusion. Specifically, a coherent spectrum fusion method is introduced to effectively expand the signal bandwidth, thereby significantly enhancing range resolution and target identification capabilities. Building upon this, deformation measurements are conducted to achieve more refined and detailed monitoring.
Landslides pose a persistent and catastrophic threat globally, necessitating advanced monitoring techniques for effective early warning and risk mitigation. Global Navigation Satellite System (GNSS) technology provides real-time, high-precision displacement data and is widely used in landslide monitoring. However, its...
Xuan-Yu Qu, Wenkun Yu, Xinrui Li et al.· Geohazards & Remediation· 0 citations
(English) Interferometric Synthetic Aperture Radar (InSAR) enables millimeter-level measurements of surface deformation over large areas and long time spans, and has become an important tool for geohazard monitoring and infrastructure safety assessment. However, in natural environments with dense vegetation, intensive...
Abstract. Maritime vehicles face significant positioning challenges under adverse weather conditions where visual and laser SLAM systems suffer from severe degradation. Millimeter-wave radar offers inherent robustness to weather interference, yet single-band radar cannot simultaneously achieve accurate translation and...
Fangcheng Qu, Yuheng Zhang, Xian-Lang Wei et al.· The International Archives o...· 0 citations
Continuous Global Navigation Satellite System (GNSS) monitoring is essential for characterizing surface subsidence in underground coal-mining areas. However, monitoring-station site selection remains strongly dependent on empirical judgment. Furthermore, steep deformation gradients can cause interferometric synthetic a...
Yuanrong He, Xiao-Lin Yu, Huiwei Su et al.· Italian National Conference...· 0 citations
Structural health monitoring (SHM) of aging bridges requires reliable methods to capture deformation behavior at multiple scales. Persistent Scatterer Interferometric Synthetic Aperture Radar (PS-InSAR) provides millimeter-level displacement measurements, but interpretation of these datasets remains challenging for sle...
Ehsan Sadeghian, D. Cusson, E. Dragomirescu et al.· e-Journal of Nondestructive...· 0 citations
Synthetic-aperture radar (SAR) ship detection is a fundamental task in maritime remote sensing, supporting wide-area surveillance, traffic monitoring, and emergency response under all-weather imaging conditions. Existing deep detectors mainly rely on spatial cues such as intensity, shape and context, but structured sea...
