Advanced Architectures for Interference-Tolerant Digital Receiver

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-06-M-0105
Agency Tracking Number: N061-071-0348
Amount: $99,853.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2006
Solicitation Topic Code: N06-071
Solicitation Number: 2006.1
Small Business Information
175 Clearbrook Road, Elmsford, NY, 10523
DUNS: 103734869
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Deepnarayan Gupta
 VP Research & Development
 (914) 592-1190
Business Contact
 Ed Kulinski
Title: VP Administration & FInan
Phone: (914) 592-1190
Research Institution
The goal of this project is to (1) develop high dynamic range direct RF analog-to-digital converters (ADCs), providing enhanced immunity to high in-band intereference, and (2) use multiple synchronous converters to enable direct digital reception from a multi-antenna array. HYPRES has been developing a superconducting digital-RF receiver system for the Navy and other DoD users, based on an ultrafast ADC (sampled at 20 GHz or more), featuring outstanding linearity due to intrinsic quantum accuracy. This ADC design has matured over the last decade and already exhibits an impressive spur-free-dynamic range (SFDR) greater than 100 dB. Further substantial increase in performance requires a major innovative next generation design. We propose a more complex multi-rate quantizer design that allows the ADC dynamic range to be increased by at least 2 bits, for a total of 3.5 bits in conjunction with ongoing process improvements. We also propose to implement an advanced receiver architecture using multiple ADCs synchronized to a common clock to accommodate multiple inputs from one or more antenna arrays. Initial designs of multi-rate ADC and the multi-input receiver architecture will be completed in Phase I. Incorporation of these improvements into a complete digital-RF receiver will be completed in Phase II.BENEFITS: A broadband receiver with high linearity and dynamic range will be significantly more tolerant of cosite interference that has long been a major concern in Navy SIGINT and communication systems. Furthermore, synchronous detection from multiple antennas has broad applications to digital beamforming and direction finding. Receivers that incorporate similar components may also be applicable to commercial wireless communications, SATCOM, and radar systems.

* information listed above is at the time of submission.

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