POS Series GNSS and inertial navigation system 2-in-1 combined heading and attitude measuring system is independently developed by Hydro-Tech. It was widely used to survey high precision position, heading and attitude of marine platform. The main features are small size, light weight and high precision. POS system comprises of one PCS main unit, one IMU and 2 GNSS antennas. POS Series are suitable for small boat and unmanned vehicle.
Working Mode |
Spec. | POS25 | POS15 | POS08 |
DGPS | Heading | 0.06° (4m baseline)
0.08° (2m baseline) |
0.015° (4m baseline)
0.03° (2m baseline) |
0.01° (4m baseline)
0.02° (2m baseline) |
Position | 0.5 - 2m | 0.5 - 2m | 0.5 - 2m | |
Pitch & Roll | 0.04° | 0.03° | 0.02° | |
Heave | 5cm or 5%
2cm or 2% (TureHeave) |
5cm or 5%
2cm or 2% (TureHeave) |
5cm or 5%
2cm or 2% (TureHeave) |
Fugro MarineStar | Heading | 0.06° (4m baseline)
0.08° (2m baseline) |
0.015° (4m baseline)
0.03° (2m baseline) |
0.01° (4m baseline)
0.02° (2m baseline) |
Position | Horizontal: 10cm (95%)
Vertical: 15cm (95%) |
Horizontal: 10cm (95%)
Vertical: 15cm (95%) |
Horizontal: 10cm (95%)
Vertical: 15cm (95%) |
|
Roll & Pitch | 0.03° | 0.02° | 0.01° | |
Heave | 5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
Realtime RTK | Heading | 0.06° (4m baseline)
0.08° (2m baseline) |
0.015° (4m baseline)
0.03° (2m baseline) |
0.01° (4m baseline)
0.02° (2m baseline) |
Position | Horizontal: 8mm+1ppm
Vertical: 15mm+1ppm |
Horizontal: 8mm+1ppm
Vertical: 15mm+1ppm |
Horizontal: 8mm+1ppm
Vertical: 15mm+1ppm |
|
Roll & Pitch | 0.03° | 0.02° | 0.01° | |
Heave | 5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
Post Processing | Heading | 0.06° (4m baseline)
0.08° (2m baseline) |
0.015° (4m baseline)
0.03° (2m baseline) |
0.01° (4m baseline)
0.02° (2m baseline) |
Position | Horizontal: 8mm+1ppm
Vertical: 15mm+1ppm |
Horizontal: 8mm+1ppm
Vertical: 15mm+1ppm |
Horizontal: 8mm+1ppm
Vertical: 15mm+1ppm |
|
Roll & Pitch | 0.025° | 0.015° | 0.008° | |
Heave | 5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
GNSS Outage | Heading | 0.2° (Post Processing, 60s outage)
0.3° (Realtime RTK, 60s outage) |
<0.2° decrease every hour outage | <0.1° decrease every hour outage |
position | ~ 6m for 30s outages (RTK)
~ 3m for 60s outages |
~ 3m for 30s outages (RTK)
~ 2m for 60s outages |
~ 3m for 30s outages (RTK)
~ 1m for 60s outages |
|
Roll & Pitch | 0.05° | 0.04° | 0.03° | |
Heave | 5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |
5cm or 5%
2cm or 2% (Trueheave) |