ELECTRONIC WARFARE SYSTEMS (EWS)
SYNOPSIS Corporation Group’s Electronic Warfare Simulator (EWS) is a highly evolved architecture of software, high-speed digital processors, and RF assemblies used to simulate radar and other signals in complex military environments.
The EWS architecture is used to generate low-level RF signals for injection into electronic warfare surveillance receivers (receiver under test), including where applicable their multi-ports DF (Directional Finding) antenna systems.
EWS makes maximum use of DSP (Digital Signal Processor) and FPGA (Field Programmable Gate Array) technologies, which offer the re-programmability, modularity and expansibility suited for Research, Development, Test, Evaluation, and training environments.
Fundamental to the concept of EWS is the definition of RF emitters (radars, jammers …), and their relative location to the receiver under test. A comprehensive menu interface is provided to specify all of the externally observable attributes of an emitter, such as frequency, pulse width, repetition frequency, modulation on pulse, and antenna scanning effects. A database of emitters can be created and used to provide a specified set of emitters in a scenario, which is highly representative of an actual operational situation. One or more emitters can be assigned to any kind of platform, such as a ship, aircraft, missile, UAV….
Any number of such platforms can be introduced into a scenario of unlimited duration and geographical extent. The platforms with their associated emitters can be moved realistically in the playing area, as can the special platform “own ship”, which conceptually carries the receiver under test. The relative geometry between all platforms and the receiver is continuously computed in real-time to determine if the emitters on board are visible to the receiver. A computer display of platform position and elevation is continuously available. The appropriate signal strength and other environmental effects are then calculated to determine the characteristics of each signal at the receiver position. These effects are generated in real-time via RF’s synthesizers and DOA (Direction Of Arrival) or ABFU (Antenna Beam Forming Unit) modules.
The main functions of the EWS are :
- Generation of dense and complex electromagnetic dynamic environment in RF
- Capability of updating parameters and operation modes according to different scenarios for ESM / RWR /ELINT tests.
- Providing real-time simulation as close as possible to the real electromagnetic environment.
- Constituting a closed-loop simulation of Radar-Jammer-Radar to test the effectiveness of the ECM under test : Polarization modelling, Atmospheric propagation modelling, masking/multipath due to environment…
- Conducting statistics and analysis toward the results of repeated tests to get the quantitative analysis and evaluation.