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The maritime scenario of today is characterised by a high level of signals from different emitters including ground based, airborne and naval radars (navigation, surveillance, fire control, multimode seekers), and other sources (e.g. TV). The increased use of radar causes a maritime scenario of high complexity. The evolution of radar technologies has changed the threat situation dramatically. Up until about 1985 radar signals were characterised mainly by frequencies with simply structured agility, low PRFs and PRFs with small agility, limited bandwidth, and limited pulse density. The current and future signals are characterised by a multitude of agile parameters with complex structures, Pulse-Doppler technology and high-pulse density.
Such techniques demand a new approach to the design and the performance of EW-systems. The main features of present and future EW-systems must include a high probability of intercept of the entire scenario and short reaction time for early threat-warning and the deployment of countermeasures. An equally important feature is effective self protection utilising sophisticated electronic jamming and deception techniques. To increase survivability and to optimise the tactical performance of naval vessels by correlating all sensor information the integration of the EW-system into the combat system architecture is essential.
PERFORMANCE REQUIREMENTS
To meet the technical and operational requirements mentioned above, advanced EW-systems for naval application must feature capabilities such as:
- high bearing accuracy within a dense scenario
- high sensitivity to support a long-range intercept capability and a high detection probability
effective capabilities to process and analyse complex signals with high pulse density
state of the art capabilities to classify/identify radars and associated threats
effective capabilities to recommend and implement appropriate electronic counter measures
high effective radiated power (ERP)
short reaction time from the reception of signals to the transmission of jamming radiation
stable system performance, even in extremely dense scenarios
automatic system control and operator friendly control and display facilities
integration into the C3I system
The FL 1800S-II (called FL 1800S stage 2) active self protection ESM/ECM system of Daimler-Benz Aerospace (DASA) is among the most sophisticated and effective system...