State Key Laboratory of Remote Sensing Science

Improved estimation of net ecosystem CO 2 exchange over North America using LSTM-based flux upscaling (2001–2021)

Accurate estimation of regional-scale terrestrial carbon budgets is of great importance but remains challenging. With particular advantages, the Long Short-Term Memory (LSTM) network method shows potential for improving regional carbon budget upscaling estimations. Here, using LS...

Cross‐Basin Synergistic Effects Stall Summer Sea Ice Decline in the Chukchi Sea

Abstract Although global mean surface temperatures have risen rapidly, summer sea ice loss in the Chukchi Sea has exhibited an anomalous deceleration since the early 2000s. Using observations and numerical experiments, we show that this trend deceleration is closely linked to the...

Memristors Empowering Next‐Generation Human‐Computer Interaction

ABSTRACT With the continuous advancement of artificial intelligence, human‐computer interaction (HCI) is evolving toward intelligent perception, collaborative decision‐making, and natural integration. However, the physical separation of memory and computing units in traditional v...

A Ku/K-Band Phase-Locked Frequency Synthesizer with Hz-Level Step and Low Phase Noise Based on DDS and Comb-Spectrum Multiplication

Conventional phase-locked loop (PLL) frequency synthesizers face an inherent trade-off between achieving fine frequency stepping and maintaining low phase noise, which restricts the development of high-performance frequency synthesizers in high-frequency bands. To address this is...

PGMMF-Net: a POI-Guided Multi-modal Mamba Fusion Network for urban impervious surface extraction from optical and SAR imagery

Accurate extraction of urban impervious surfaces (IS) is essential for urban environmental analysis. However, optical-based methods are affected by shadows and spectral confusion, while optical-SAR fusion lacks urban functional semantics. Point-of-interest (POI) data provide comp...

Discussion on Quality Model and Evaluation Methodology for WMS

Abstract. The integration of internet technologies and geographic information systems (GIS) has positioned Web Map Services(WMS) as indispensable tools for daily life, with their service quality attracting significant attention. This study proposes a quality evaluation model and...