A Cross-Correlator Chip for a Spaceborne Synthetic Aperture Radiometer

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$596,698.00
Award Year:
2001
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
990306
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Spaceborne, Inc.
742 Foothill Blvd., Suite 2B, La Canada, CA, 91011
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Constantin Timoc
President
() -
ctimoc@aol.com
Business Contact:
Constantin Timoc
President
(818) 952-0126
ctimoc@aol.com
Research Institution:
n/a
Abstract
Future synthetic aperture interferometric radiometers, such as JPL's New Millenium Program, Geostationary Synthetic Aperture Microwave Sounder (GEO/SAMS) instrument, will employ a thinned array of hundreds of miniaturized receivers and a massively parallel cross-correlator system for digital signal processing. The objectives of Phase I are to develop, fabricate, and test a proof-of-design of a 64-baseline, 1-bit encoding, cross-correlator chip operating at clock frequency of 120 MHz to provide the critical design information for the development in Phase II of a radiation-hard, 1024-baseline correlator chip and of an engineering model of a 16,384-baseline cross-correlator system dissipating less than 8 W. To achieve the stated objectives, the following synergistic combination of approaches will be used: a) innovative expandable architecture to enable the construction of cross-correlator systems with any number of antennas , b) new bit-systolic arrays for operation at high frequency with low power consumption, c) novel radiation-hard digital circuit techniques, and d) advanced sub-micron CMOS fabrication technologies. The cross-correlator chip proposed in this project, if successfully realized, will enable the implementation of low-power cross-correlator systems for spaceborne synthetic aperture interferometric radiometers that will be capable of performing breakthrough measurements of the Earth's environment.

* information listed above is at the time of submission.

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