A mobile radar measurement system – Arken
Arken is a flexible, mobile radar measurement system with numerous civil and military applications. For example, it can help in assessing an object’s radar characteristics, or the characteristics and effectiveness of radar counter-measures. Civil uses can include the testing and trials of methods for surveillance of areas surrounding secure facilities, such as nuclear power stations and prisons. Arken can also be used to study the influence of wind turbines on airport and weather radars.
Arken – an extremely flexible and mobile radar measurement system
Arken consists of two trailers, an antenna trailer and an operator trailer, which can both be towed by ordinary private cars. Conducting the measurements requires only two to four persons, depending on the complexity of the task.
Fast feedback provides excellent control
The measurements are steered from an operator trailer, which is also where analysis of the measurement data is carried out. The first check of the measurement data is already possible after only a few minutes from the time it was collected. Because the data can be checked so quickly, adjustments and additions can be made to the immediate planning at the same time as the radar measurement trials are underway.
Manual or automatic control
The antenna trailer consists of a precision turntable on which the antennas and high frequency equipment are mounted. Other sensors, for example cameras and laser pointers, can also be added. The turntable can be controlled either manually or automatically.
Manually, the turntable is controlled using a joystick in the operator trailer. The operator relies on two video feeds supplied by cameras on the turntable. The turntable can also be controlled automatically, either via external cueing or according to a predefined movement pattern. Whenever an external targeting occurs, it can be received via Ethernet for automatic positioning and tracking. Examples of the use of external cueing include radar facilities and Automatic Identification Systems, AIS, the current standard in maritime transportation and elsewhere.
- Frequency: 6-18 GHz
- Power: 100 W
- PRF (Pulse Repetition Frequency): 300 Hz-50 kHz
- Pulse length: 200 ns-10 µs
- Bandwidth: 3, 11, and 80 MHz and one optional
- Sampling frequency: 200 MHz
- Number of range gates: 2-2047
- Measurement period: determined by hard disk size
- Antenna gain: 30-32 dB
- Polarisation: vertical, horizontal, and cross-polarisation
- Sensitivity: ~90 dBm