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2021 Vol. 46, No. 1

Cartography and Geoinformation
Sustainable Urbanization and Territorial Spatial Optimization
Automatic Aggregation of Building Footprint Polygons
A Multi-level Graph Partition Clustering Method of Vector Residential Area Polygon
Extracting Built-up Areas Using Luojia-1A Nighttime Light Imageries in Wuhan, China
Chinese City Size Evolution Under Perspective of Nighttime Light Remote Sensing
Aerospace Grid-Based Algorithm of Inter-satellite Visibility and Route Path Planning for Satellite Constellation
A Rapid Path Planning Algorithm Based on the Bilateral Convex-Hull Expanding Model
A Low-Dimensional Manifold Representative Point Method to Estimate the Non-parametric Density for High-Dimensional Data
Geodesy and Navigation
A Sound Ray Tracking Algorithm Based on Template-Interpolation of Constant-Gradient Sound Velocity
Influence of Time Period Selection on Determining Relative Sea Level Trends
Hierarchical Adaptive Information Filtering Algorithm Considering System Noise and Observation Noise
A Method of Protection Level Reconstruction Based on Robust Estimation
Tropospheric Delay Prediction Based on Phase Space Reconstruction and Gaussian Process Regression
Analysis of SBAS Ephemeris Correction and UDRE Generation Algorithm
Suitability Analysis of Geomagnetic Map Based on Fuzzy Decision Theory
Spatiotemporal Variation of Sea Ice Freeboard in the Antarctic Weddell Sea Based on CryoSat-2 Altimeter Data
Photogrammetry and Remote Sensing
Land Surface Temperature Downscaling Method in Ion-type Rare Earth Mining Area Oriented to Mining Disturbance