Table 1.
Comparison of the three sonar types.
| Side-Scan | Multi-Beam | BV5000 | |
|---|---|---|---|
| Installation | Mount under the vehicle | Mount under the vehicle | Placed on the seabed |
| Other sensor requirements | GPS | GPS, IMU | No |
| Measurement method | Sailing back and forth | Sailing back and forth | Multiple measurement station |
| Measurement range | 150 m on both sides | User-selected | 30 m in radius |
| Resolution | 5 cm | 10 cm | 1 cm |
| Application | Target search | Submarine geomorphology survey | Inspect dock structure |
| Difficulty of operation | Pay attention to vehicle speed and distance from the sea floor | Inappropriate for shallow water because of post-processing difficulties | Easy to operate |