There are several strategies that underwater robots employ to navigate through obstacles and complex terrains. Firstly, they rely heavily on sensors like sonar, lidar, and cameras to detect and map the environment in real-time. These sensors provide crucial information about obstacles, depths, and other features.

So, how do underwater robots cope with these challenges when encountering obstacles or deep trenches in the seabed?

Absolutely! And let's not forget the visibility issue. Poor visibility due to turbidity or sediment can hinder the robot's sensors, making it difficult to accurately perceive obstacles and terrain features. This, in turn, affects the robot's ability to plan safe paths and avoid collisions.

Great question! Seabed terrain and hydrological environment undoubtedly pose significant challenges to underwater robots. For instance, uneven seabed topography can cause significant disturbances in the robot's buoyancy and stability, requiring frequent attitude adjustments. Additionally, strong currents and tides can significantly impact the robot's trajectory and require sophisticated control algorithms to maintain course.