CEROS 200 Fire Control Radar on the Swedish Visby class corvette HSwMS Karlstad
CEROS 200 Fire Control Radar on the Swedish Visby class corvette HSwMS Karlstad

US Navy to Test Saab’s CEROS 200 Multi-mission Fire Control Radar

Saab’s CEROS 200 has arrived in the United States, from Sweden, for test and system demonstration by the U.S. Navy. CEROS 200 is a multi-mission precision gunfire and missile control system for surface naval platforms that provides enhanced fire control target tracking by integrating multiple sensor types. More than 200 CEROS 200 systems have been produced for world-wide operations. In the U.S., CEROS 200 will be used for system characterization and capability demonstrations against current and emerging threats. The CEROS 200 director provides 3D tracking. Saab’s multi-mission radar systems operate on U.S. Navy and Coast Guard platforms.

The CEROS 200 (CElsius tech Radar and Optronic Site) is a radar and optronic tracking fire control director designed by Saab for use along with the 9LV Naval Fire Control System on naval ships. When interfaced to modern missile or gun systems it provides defence against any modern threat including advanced sea skimming missiles or asymmetric surface threats in littoral environments. The Ceros 200 has been operated successfully in all conditions, from arctic to tropical, and can be combined with the 9LV Combat Management System (CMS) or Fire Control System (FCS) to provide precision control for any naval gun or Surface-to-Air (SAM) missile system.

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Ceros 200 director and-topside sensors mounted on a container which includes all equipment inside for operations and demonstrations in the us.
Ceros 200 director and-topside sensors mounted on a container which includes all equipment inside for operations and demonstrations in the us. (Photo by Saab)

Depending on the clutter situation and Electronic Countermeasures (ECM) threat, the radar selects its frequency agility pattern between 32-pulse bursts and pulse doppler-signal processing, 4-pulse bursts and moving target indication processing, or pulse-to-pulse agility. The pulse repetitive frequency and pulse width are selected depending on the proximity of the target. The digital receiver, in combination with the improved signal processing, enables a higher degree of flexibility of pulse length and waveform, e.g. for adapting to new threats. The radar design incorporates many Electronic Counter-Countermeasure (ECCM) features: Very low antenna side lobes, Very wide bandwidth, A large number of transmission frequencies, Random selection of frequency and Lock-on jam, track-on jam.

Several Ceros 200, Eos 500 electro-optical tracking systems, gun fire control and missile control modules can be combined in a 9LV fire control subsystem, where operators dynamically allocate any combination of tracker and weapon to handle surrounding threats. The Ceros 200 incorporates CHASE, a patented method for processing complex radar target return signals from low flying targets – such as sea skimming missiles – to eliminate multipath effects. Ceros 200 is available in a Continuous Wave Illuminator (CWI) configuration providing an additional x-band channel for target illumination and control of semi-active missiles. Combined with Saab’s gun fire control, Ceros 200 provides unparalleled accuracy for gun engagements

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