Innovative Wideband All Digital Receiver (ADR)

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,590.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
N00039-07-C-0124
Award Id:
82778
Agency Tracking Number:
N071-110-0988
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
10070 Barnes Canyon Road, San Diego, CA, 92121
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
107928806
Principal Investigator:
Michael Larsen
Senior Scientist
(858) 373-2770
mlarsen@islinc.com
Business Contact:
Sandra Quintero
Senior Contracts Administrator
(858) 373-2711
squintero@islinc.com
Research Institute:
n/a
Abstract
ISL propose to combine state-of-the-art advances in signal processing algorithms and architectures and superconducting electronics to design and fabricate an essentially all-digital receiver (ADR) that will both mitigate the effects of EMI and reduce digital storage requirements. An innovative Analog-to-Information (A-to-I) converter approach will be designed that eliminates many of the redundant bits during the conversion process. The unique aspect of ISL's approach is the use of linear predictive processing in conjunction with implicit non-uniform sampling. Non-uniform sampling is required to incorporate a linear predictor into the concept to achieve data reduction. In this approach, the RF signal from the antenna is bandpass filtered with a pre-selection filter that uses High-Temperature Superconducting (HTS) filters in order to define the input bandwidth and suppress out-of-band interference. The difference of the output from the pre-selection filter and the output of the linear prediction filter generates a prediction error signal. For many military systems the single most important piece of prior knowledge is that the desired signals are weak with respect to the other signals within the band. This observation means that in many applications, prediction of the strong signals followed by subtracting them out of the composite in-band signal mix, is an attractive method to reduce the dynamic range of the received signal and thus the number of digital bits required to represent the signal.

* information listed above is at the time of submission.

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