The DP-D500 Doppler Navigation System is a deep-water underwater velocity measurement instrument designed for high-precision subsea navigation. Based on the acoustic Doppler measurement principle, the system measures three-axis velocity relative to the seabed or water layer and provides real-time altitude data between the acoustic array and the seabed.

Operating at a 150 kHz center frequency, the system supports long-range bottom tracking up to 500 m, making it suitable for deep-water navigation tasks. The device can function independently or integrate with inertial navigation systems (INS) for sensor fusion, providing reliable navigation data for complex underwater operations.

The DP-D500 is designed for installation on Autonomous Underwater Vehicles (AUV), Remotely Operated Vehicles (ROV), subsea robotics platforms, and marine survey systems requiring accurate motion measurement and underwater positioning.

Key Features

• 150 kHz acoustic Doppler technology for long-range velocity measurement
• Three-axis real-time velocity output (X, Y, Z)
• Maximum bottom tracking depth up to 500 m
• Operational depth up to 1000 m (customizable)
• High-precision altitude measurement relative to seabed
• Integrated internal data logging for long-duration missions
• RS422 communication interface for navigation data transmission
• Reliable subsea operation in harsh marine environments

Advantages

• Long-range seabed tracking capability suitable for deep-water navigation missions
• High velocity measurement accuracy ≤2‰ ±2 mm/s under stable seabed conditions
• Stable navigation data output for underwater vehicle control and positioning
• Large internal storage capacity supporting ≥312 hours of data recording
• Robust marine-grade design for subsea exploration and survey operations

Functions

• Real-time underwater vehicle velocity measurement
• Seabed altitude measurement between acoustic array and seabed
• Navigation data transmission via RS422 interface
• Internal data recording and mission data storage
• System status monitoring and diagnostic reporting

Applications

The DP-D500 Doppler navigation system is designed for underwater navigation and motion sensing in various deep-sea and subsea applications, including:

• Autonomous Underwater Vehicles (AUV) deep-water navigation
• Remotely Operated Vehicles (ROV) positioning and control
• Subsea robotics and inspection platforms
• Marine survey and seabed mapping systems
• Oceanographic research equipment
• Deep-sea exploration and offshore engineering operations