Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System

Table 1

The main parameters of USV and depth sounder.

USV	Technical parameters	Depth sounder	Technical parameters
Hull weight	14.00 kg	Working frequency	200 kHz
Size	1.05 m × 0.56 m × 0.27 m	Sound speed adjustment range	1370 ∼ 1700 m/s
Wind and wave resistance level	Level 3 wind and level 2 wave	Precision	±10 mm
Endurance	4 h	Resolution	0.01 m
Maximum speed	4.5 m/s	Transducer open angle	5 ± 0.5°
Waterproof level	IP65	Draught adjustment	0 ∼ 15 m
Remote control distance	2 km	Weight	0.50 kg
Draught	0.2 m	Waterproof level	IP 66
Software	HiMAX	Power supply	12V DC