Sea Watcher 100 (Seastar) is a non-rotating I-band (or X-band) surface surveillance radar for asymmetric threat operations in the littoral, open-ocean and harbour environments with a typical operational range of up to 40 km.
Sea Watcher 100 is a 2-D radar sensor designed to detect and track even the most difficult of surface targets, such as boats, periscopes, floating mines and swimmers which have a very small radar cross section, that are moving close to the speed of the waves and as such a near-zero Doppler value and that are down at the surface level, sometimes being hidden from view behind wave tops.
Typical challenges that Sea Watcher 100 is designed to meet, include multi-path, surface duct propagation and shadowing effects, as well as backscatter and clutter from the sea surface. The non-rotating, staring nature of its antenna arrays allows it to spend more time looking at each possible target, which helps the processing to discriminate real targets from the clutter.
Sea Watcher 100 operates using a single-mode concept, which frees the operator from having to select the best possible mode. The system automatically selects the optimum combination of waveforms to provide short-, medium- and long-range coverage, depending on the characteristics of the sea surface as seen from a certain distance.
Sea Watcher 100's solid-state active phased array architecture with advanced beam steering and burst scheduling algorithms, ensures both high Doppler resolution and a high update rate, needed to discern small targets that are hidden in clutter.
Short- and medium-range search is performed at two-second update rates, while for long-range search an update is provided every five seconds. The radar displays all ranges simultaneously so that the operator does not notice the mode changes and always has a total picture including all close-in, medium-range and long-range targets.
Sea Watcher 100 is ideally suited for installation in an integrated mast structure.
Sea Watcher 100 is the outstanding capability against asymmetric tactics and for target indication to remote controlled small arms.