Technical Description; The Product; Figure 1 Illustration Of Position Accuracy As A Function Of Distance; Figure 2 A Typical Scenario Where A Vessel Operates Close To A High Structure - Kongsberg Seatex RADius 1000 Technical Description

Kongsberg Seatex RADius
3.

TECHNICAL DESCRIPTION

3.1

The product

RADius (patent pending) represents a completely new way of utilising radar principles in
short range and direction monitoring. RADius is mainly meant to be used in operations where
increased safety is crucial. The system could typically be used to control or assist automatic
dynamic positioning (DP) of a vessel.
The RADius system is designed to operate close by structures and other vessels. The use of
identifiable transponders minimizes the risk of tracking false radar echoes.
Distanc
100
10
1

Figure 1 Illustration of position accuracy as a function of distance

As shown in Figure 1, DGPS and RADius have complementary characteristics when closing
up to large structures. The DGPS systems will suffer from limited view of the sky, resulting in
degraded GPS availability. This can be crucial when the GPS constellation is at its minimum
and the most important satellite disappears behind the structure. The RADius system
increases its performance as it moves closer to the transponders located on the structure.

Figure 2 A typical scenario where a vessel operates close to a high structure

200
100
5
Technical description, rev 0
RADius
DGPS
Distanc
300