Topic 1: Remote Sensing
Surveying and mapping
Theories related to navigation and oblique photography
Technique
Remote Sensing (RS)
Optical remote sensing
Microwave Remote Sensing
Remote sensing of atmospheric environment
Planetary Remote Sensing and Mapping
Cryosphere and hydrosphere
Geographic information science
Remote Sensing Information Engineering
Spatial Database
Earth Monitoring and Mapping
Space Technology and Landscape Architecture
Classification and Data Mining Techniques
Image processing techniques 
Hyperspectral image processing
Remote sensing data fusion
Remote sensing data quality
Remote sensing mode analysis
Topic 2: Satellite Communication
Navigation and positioning service engineering technology
Communication Engineering Technology
Information and Communication Networks
Information System Analysis Engineering Technology
Geographic Information System Engineering Technology
Optical communication
Wireless Communication and Technology
High Speed Network
communications software
Uwb
Multimedia communication
Cryptography and Network Security 
Green communication
Mobile communication
Communication channels and mobile devices
Communication system
Data communication
Ubiquitous Network
Reliable optical network
Satellite communication technology
Ultra high frequency (UHF)
Ultra High Frequency (SHF)
Extremely High Frequency (EHF)
Laser
Communication parameters
Measuring station
Communication service station
Topic 3: Digital Earth
Remote sensing data fusion and application
Photogrammetry and 3D modeling
Geodesy and Geodynamics
Vegetation Ecological Remote Sensing
Sensor Technology and Target Recognition
Global Satellite Navigation System
Remote sensing prediction of geological hazards
Remote sensing applications for resource investigation
Remote sensing monitoring of environment and disasters
Agricultural remote sensing technology
Geographic Information Systems and Spatial Analysis
Digital Twin Earth Technology
Time Space Big Data Mining
Smart City and Real 3D Reality
Indoor positioning and navigation
GNSS meteorological monitoring
Lidar point cloud processing
Sustainable Development Remote Sensing Assessment
Blockchain Geographic Information Application
Health Geography and Disease Modeling