TrellisWare JADIC - Joint Analog Digital Interference Cancellation




 PDF version Download PDF version of text | Printer-friendly versionPrinter-friendly version

TrellisWare JADIC - Joint Analog Digital Interference Cancellation



High Dynamic Range, Tethered Interference Cancellation

To avoid the threat of improvised explosive devices (IEDs) in hostile areas a jammer is often used. Jammers like the CREW Vehicle Receiver/Jammer (CVRJs) are designed to prevent the detonation of IEDs and help save lives. CVRJs counter existing and evolving Radio Frequency (RF) threats, but often interfere with the reception of blue force communications. The large power a jammer produces in the blue force communications bandwidth can prevent desired communications. This reduces the effectiveness and responsiveness of the vehicle crew.

TrellisWare Joint Analog Digital Interference Cancellation

The TrellisWare Joint Analog and Digital Interference Cancellation (JADIC) system eliminates electronic fratricide for systems on the same vehicle as the CVRJ. Using a combination of linear and low noise analog interference cancellation and high speed performance digital interference cancellation, JADIC eliminates the jammer from the signal received by the blue force communication system. The JADIC system self-configures, without the need of information from the blue force communication system and can be fully trained for a mission in less than three seconds. The system enables full duplex communication and is largely independent of the jammer waveform. With rapidly adapting cancellation, JADIC enables missions in highly dynamic
environments where systems like the CVRJ are frequently used.

The JADIC system enables blue force communication systems to operate almost as if there were no jammer present, without compromising the ability of the jammer to suppress the IED detonation.

TrellisWare JADIC

JADIC Performance

Frequencies UHF SATCOM Band (240-270 MHz)
RF Bandwidth 30 MHz
Suppression
Capabilities
> 100 dB with +20dBm of jammer power at radio antenna
> 110 dB with +5 dBm of jammer power at radio antenna
Less than 0.6 dB impact to jammer transmitted power
Noise Figure Less than 9 dB
Prime Power 19-34 Vdc
Less than 2.2A

 


JADIC - Joint Analog Digital Interference Cancellation