DSEI 2019

Better detection and tracking [DSEI19D4]

13 September 2019

Elta (Stand S7-330) has developed new algorithms for its ELM-2270 over-the-horizon (OTH) radar that improve the detection and tracking capability of the system when operating in 200nm exclusive economic zones.

OTH radars operate in low-frequency HF bands and can operate at ranges further than a typical sensor can, utilising wave propagation and emitting a signal over the sea that follows the earth's curvature to detect targets that are beyond line-of-sight. While this is not a new technology, effective implementation of OTH has been challenging, largely due to the HF frequency being affected by clutter, but improved algorithms and a hardware design have enabled the company to overcome this in the ELM-2270. The sensor utilises a 2D receiving antenna uniform circular array with a co-located transmit antenna, and continuously transmits at 120° in azimuth wide-angle beam, while the receiver performs full-digital beam forming, which provides instant coverage of an entire sector.

Meanwhile, the Israel Aerospace Industries subsidiary has also announced it has received a contract from an undisclosed Asian customer for its ELM-2114 perimeter protection radar. This will be installed within a system around the perimeter of military assets throughout the country to protect against potential intrusions and includes different independent security layers, this radar being that longest range of those.

ELTA is delivering the new ELM-2114 V1K version of the radar, which provides what it says is a 100 per cent increased detection range over its predecessor, ELM-2114 V05, able to operate over ranges of 1km for a moving person and 2km for moving vehicles.

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