Wideband Scalable Multi-channel Digital Receiver/Exciter (DREX)

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0147-11-C-7622
Agency Tracking Number: B103-028-0272
Amount: $99,916.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2010
Solicitation Topic Code: MDA10-028
Solicitation Number: 2010.3
Small Business Information
UWB WIRELESS INC.
930 Georgetown Road, Cookeville, TN, -
DUNS: 831665943
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Lily Li
 President
 (931) 528-7879
 liliy1@yahoo.com
Business Contact
 Lily Li
Title: President
Phone: (931) 528-7879
Email: liliy1@yahoo.com
Research Institution
 Stub
Abstract
In response to the proposal solicitation of''Wideband Scalable Multi-channel Digital Receiver/Exciter (DREX)', this proposal presents a phase-I research plan committing to provide a set of study and experiment results, and conceptual design of a scalable coherence method. A new framework for wideband DREX with digitalized channel mismatch compensation is proposed. In the proposed architecture, digital signal processing relies on both a FPGA based real-time processor and a host PC with Graphic Processing Unit (GPU) for parallel computing. Major considerations in system design, measurement based modeling, channel mismatch compensation, as well as performance evaluation are discussed. Among many challenges are 1) to develop an effective system identification technique for the proposed channel model and 2) to develop a feasible channel mismatch compensation technique based on global optimization. Typical applications in wideband digital beamforming (DBF) and MIMO radar will be considered in developing and verifying the new schemes. Indeed, there are many questions and uncertainties associated with modeling and implementing the new schemes in real-time, which motivates us to study feasibility and implementation related issues using our lab facilities. This way, investigation results will be more convincing, which will pave the way for the phase II development.

* information listed above is at the time of submission.

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