SatNav Documentation

Continuous-State Vision-and-Language Navigation via Satellite Maps

SatNav provides scene preparation, trajectory generation, model training, and online evaluation for language-guided navigation over satellite maps. Its SatSim environment renders RGB observations as agents move through continuous geographic space.

Start here

Your goal	Guide
Understand the system	Architecture and navigation loop · SatSim observations · Tasks and metrics · Expert trajectories
Run your first navigation episode	Installation · Examples
Prepare scenes and episodes	Dataset · Satellite maps
Train a navigation policy	Training
Evaluate a model	Online evaluation

Navigation workflow

Generate expert trajectories for training, then evaluate policies through the same SatSim observation and action interface.

Resources

• SatNav Episodes: 118,494 episodes across 59 scenes, with boundary, landmark, and route navigation tasks.

• Model Zoo: released SatNav baseline checkpoints.

• SwiftVLN: SwiftVLN setup on SatNav.