The traditional way to evaluate the effects of ECM systems is to use a test range, which involves several ships or airplanes in an operational environment. This method is very expensive and most of the time real threats are unavailable.
Another approach might be to use one of the many simulation software packages available on the market to conduct a cheaper test in an EW-Lab, but…
The major limitation, with both methods, is that the real effect of the ECM on the threats is not clear, as well as the ability to react by putting into practice an ECCM.
In fact, the only way to test the ESM/ECM effects on enemy Radars is to use a Hardware-in-the-loop Programmable Radar Simulator, capable of emulating them.
This innovation is called E-PRS. The E-PRS can simulate a broad range of Radars, including ground based, airborne and shipborne radars, as well as missile seekers.
Greater test reliability is ensured by using a real radar digital receiver, a waveform generator and a programmable signal and data processor. This method takes into proper account the response and limitations of real hardware processing.
The radar models for the simulation are user created by the E-PRS programming and graphics user interface, according to the user’s intelligence information.
Similarly, the scenarios are prepared by a dedicated scenario graphics user interface. These scenarios take care of both the motion of platforms and the relevant RF echo signals.
Finally, it is necessary to designate the System Under-Test Platform for the scenario.
By running the E-PRS simulation, it is possible to assess both the System Under-Test ESM/ECM and the simulated radar ECCM.
The E-PRS, described as a simplified block diagram is composed of
- A Programmable Microwave Transmitter
- A Programmable Microwave receiver
- A Programmable Target Generator
- A Radar Antenna Simulator
- A Digital signal and data processor, programmable via SW
- A Scenario Generator
- A Display and Control unit
- Data collection and analysis
The software required to programme and to operate the EPRS simulation is provided with the system; it consists of:
- The programming graphics user interface, also called “E-PRS Framework”.
- The scenario graphics user interface software.
- The E-PRS operational Control and Display software.
With the Framework software, the user can generate radar models according to his needs, using the functional library modules provided, in a graphics environment. Advanced users may add further functional library modules if required. Finally, the software allows for recording all the relevant simulation data for further analysis and playback.
The E-PRS opens new perspectives to the world of Radar Simulation for EW Systems evaluation, and other technical and operational purposes.
Eldes – Radar systems for Meteorology and Defence