Kongsberg Seatex RADius 1000, Technical Description

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Kongsberg Seatex RADius Technical description, rev 0
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Innovative technology
The implementation is fully solid state and based on measuring reflected signals from a
number of transponders who represent targets in the nearby area. Each reflected signal is
mixed with a unique ID in order to separate different transponders from each other. Advanced
signal processing allows simultaneous and continuous measurements from up to five
transponders. RADius is designed for multiple vessels utilizing the same transponders
simultaneously.
Advanced principles
One or more Interrogator Units are located at the manoeuvring vessel and one or more
transponders are attached to different points at the remote object. Signal processing will
effectively remove possible interference with other transmitting devices in the same
frequency band. Application software makes configuration and monitoring of the RADius
operation easy and effective. Interfaces to remote systems are provided through serial lines.
RADius is designed to fill the need specified by IMO for DP Class 2 vessels.
Operational features
RADius is capable of detecting and measuring the distance to transponders within the range
of up to 1000 metres. The angle between the Interrogator and each transponder is determined
by the use of interferometric methods. RADius is delivered with an easy-to-use graphical user
interface.
3.2 Design principles
The RADius product is a high precision reference and tracking system, utilising low power
FM-CW radar principles. The system may include a number of Interrogators and
transponders. The Interrogator is used to read the individual distance and direction to a
number of transponders by means of microwaves.
The Interrogator includes a transmitter unit, a receiver unit and a pre-processor unit. The
Interrogator communicates with the Processing Unit through an Ethernet link
Each transponder includes antennas, a side band oscillator and a voltage source. The
transponder generates sub-carriers at individual frequencies for identification. The RADius
500 low power transponder is powered by a battery. The RADius 600 high gain transponder
is permanently connected to 6 VDC.