Wideband Radio Local Interference Optimization Techniques

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$147,980.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
N66001-12-P-5106
Agency Tracking Number:
N112-170-1176
Solicitation Year:
2011
Solicitation Topic Code:
N112-170
Solicitation Number:
2011.2
Small Business Information
Adaptive Dynamics, Inc
11829 La Colina Rd., San Diego, CA, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
141703756
Principal Investigator:
Brandon Zeidler
CTO
(858) 705-2781
brandon@adaptive-dynamics.com
Business Contact:
James Zeidler
President&CEO
(858) 705-0161
jrz@adaptive-dynamics.com
Research Institution:
Stub




Abstract
Adaptive Dynamics has developed a Multiple Adaptive Generalized Interference Cancellation (MAGICTM) hardware prototype filter that has demonstrated robust performance for protecting current narrowband UHF SATCOM systems against both narrowband and frequency dynamic interference without any prior knowledge of the interference characteristics. This filter provides a radical departure from the traditional techniques for interference mitigation based on classical Weiner-based adaptive filtering approaches. Whereas the traditional gradient-based techniques often exhibit poor convergence and tracking in tactical communication applications, the MAGICTM filter directly addresses the problem of estimating, tracking and cancelling numerous signals, and provides robust communications capabilities in the presence of severe, dynamically changing interference. A detailed plan is provided to modify and implement the existing narrowband version of the MAGICTM filter and evaluate the performance of a new wideband version for mitigation of the various types of dynamic interference, both narrowband and wideband, that could degrade the performance of the MUOS 5 MHz UHF SATCOM system. Leveraging a WCDMA testbed developed under prior work, preliminary results for applying the modified broadband MAGICTM filter to the 5 MHz WCDMA waveform indicate excellent performance for mitigating extremely strong narrowband and 5 MHz chirped interference.

* information listed above is at the time of submission.

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