Czech Company ERA launches Silent Guard mobile demonstrator of passive surveillance system 2305133

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IDET 2013 show daily news coverage report pictures video International Exhibition Defence Security Technologies Brno Czech Republic news information description pictures images photos salon international de défense et des technologies de sécurité Brno République Tchèque
 

IDET 2013 Official Online Show Daily News
International Exhibition of Defence and Security Technologies
22 - 24 May 2013
Brno, Czech Republic

 
ERA Silent Guard at IDET 2013
 
 
Thursday, May 23, 2013, 08:33 PM
 
Czech Company ERA launches Silent Guard mobile demonstrator of passive surveillance system.
The Czech Company ERA is a world leader in next-generation surveillance and flight tracking solutions with proven multilateration and ADS-B (Automatic Dependent Surveillance - Broadcast) technologies. At IDET 2013, defence exhibition in Czech Republic, the company introduces its new mobile demonstrator of passive surveillance systems, SILENT GUARD.
     
The Czech Company ERA is a world leader in next-generation surveillance and flight tracking solutions with proven multilateration and ADS-B (Automatic Dependent Surveillance - Broadcast) technologies. At IDET 2013, defence exhibition in Czech Republic, the company introduces its new mobile demonstrator of passive surveillance systems, SILENT GUARD.
Silent Guard mobile demonstrator of passive surveillance systems at IDET 2013, defence exhibition in Czech Republic.
     

ERA's demonstrator in mobile wagon called Silent Guard is another significant milestone in MSPSR technology development project and has already demonstrated its capabilities. ERA participated in a military exercise on the Western Bohemian border a month ago.

“The aim was to demonstrate passive systems capability for detecting a variety of targets with different flight behaviours. ERA provided coverage of the training with an online target data transfer from PCL as well as PET (VERA-NG) systems for four days during the trials. It was the first actual usage of those two combined systems ever,” stated Vojtech Stejskal, head of ERA's R&D team.

Long term experience with military Electronic Support Measurement (ESM) systems such as Tamara and the recent VERA-NG has served as motivation for ERA Company to continue with research dedicated to primary passive radar – technology usually known as PCL, or in EUROCONTROL terminology, MSPSR passive. In contrast to an ESM system such as VERA-NG which exploits a different kind of signal emissions generated by a target, PCL utilises a reflected signal and is therefore able to detect not only non-cooperative but also non-emitting targets by means of a Bistatic Radar principle.

     
The system utilises up to eight element circular array antennas and commercial FM radio transmitters as illuminators of opportunity in order to detect and track airborne targets.
The system utilises up to eight element circular array antennas and commercial FM radio transmitters as illuminators of opportunity in order to detect and track airborne targets.
     
Similarly to primary radars, the PCL system utilises signals scattered by targets, but by virtue of bistatic RCS. The system remains fully passive, because the so-called transmitters of the opportunity concept are used for target illumination. The transmitter of opportunity is typically intended for analogue or digital radio or television broadcasting and is operated by a third party (usually a telecommunication authority). This is the reason why we usually speak about 'exploiting' these transmitters with a PCL system.

The PCL system is based on a bistatic radar, since the receiver and transmitter are spatially separated. The bistatic configuration is particularly suitable for detection of targets with small RCS and the property of non-electromagnetic emissions which makes them undetectable. The design of the target is devoted to minimizing signal reflections in the direction of illumination. If the transmitter is spatially separated from the receiver, these techniques are naturally less effective and detections become easier.

     
Inside view of the ERA Silent Guard vehicle.
Inside view of the ERA Silent Guard vehicle.
 

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