Electronic Correlated Noise Calibration Standard for Interferometric and Polarimetric Microwave Radiometers

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNG04CA44C
Agency Tracking Number: 035365
Amount: $69,993.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
1340 Eisenhower Place, Ann Arbor, MI, 48108
DUNS: 836493759
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Kazem Sabet
 Principal Investigator
 (734) 973-6600
Business Contact
 Kazem Sabet
Title: President
Phone: (734) 973-6600
Email: ksabet@emagtech.com
Research Institution
A new type of calibration standard is proposed which produces a pair of microwave noise signals to aid in the characterization and calibration of correlating radiometers. The Correlated Noise Calibration Standard (CNCS) is able to generate pairs of broad bandwidth stochastic noise signals with a wide variety of statistical properties. The CNCS can be used with synthetic aperture interferometers to generate specific visibility functions. It can be used with fully polarimetric radiometers to generate specific 3rd and 4th Stokes parameters of brightness temperature. It can be used with spectrometers to generate specific power spectra and autocorrelations. It is also possible to combine these features and, for example, to generate the pair of signals that would be measured by a fully polarimetric, spectrally resolving, synthetic aperture radiometer at a particular pair of polarizations and antenna baselines for a specified scene over a specified frequency band. The CNCS covers those frequencies used for radiometric observations in the 1 to 40 GHz range. While intended for ground based characterization of radiometer systems, the technological approach is amenable to on-orbit calibration. Also, the CNCS can serve as an artificial radio frequency interference (RFI) generator for validating instrument performance in the presence of RFI.

* Information listed above is at the time of submission. *

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