James Randa

According to our database, James Randa authored at least 16 papers between 1999 and 2013.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2013

A Geometric Error Model for Misaligned Calibration Target in Passive Microwave Remote-Sensing Systems.

Dazhen Gu, James Randa, David K. Walker

IEEE Geosci. Remote. Sens. Lett., 2013

2012

Extraction of Illumination Efficiency by Solely Radiometric Measurements for Improved Brightness-Temperature Characterization of Microwave Blackbody Target.

Dazhen Gu, Derek Houtz, James Randa, David K. Walker

IEEE Trans. Geosci. Remote. Sens., 2012

An investigation of antenna characterization techniques in microwave remote sensing calibration.

Derek Houtz, Dazhen Gu, David K. Walker, James Randa

Proceedings of the 2012 IEEE International Geoscience and Remote Sensing Symposium, 2012

Realization of a standard radiometer for microwave brightness-temperature measurements traceable to fundamental noise standards.

Dazhen Gu, Derek Houtz, James Randa, David K. Walker

Proceedings of the 2012 IEEE International Geoscience and Remote Sensing Symposium, 2012

2011

Verification of Noise-Parameter Measurements and Uncertainties.

James Randa, Joel Dunsmore, Dazhen Gu, Ken Wong, David K. Walker, Roger D. Pollard

IEEE Trans. Instrum. Meas., 2011

Reflectivity Study of Microwave Blackbody Target.

Dazhen Gu, Derek Houtz, James Randa, David K. Walker

IEEE Trans. Geosci. Remote. Sens., 2011

Extraction of reflectivity from microwave blackbody target with free-space measurements.

Dazhen Gu, Derek Houtz, James Randa, David K. Walker

Proceedings of the 2011 IEEE International Geoscience and Remote Sensing Symposium, 2011

2010

Comparison of microwave black-body target radiometric measurements.

David K. Walker, Dazhen Gu, Katherine MacReynolds, Randy Direen, James Randa, Amanda E. Cox, Derek Houtz, Robert L. Billinger

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2010

Reflectivity studies of passive microwave calibration targets and absorptive materials.

Dazhen Gu, Amanda E. Cox, Derek Houtz, David K. Walker, James Randa, Robert L. Billinger

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2010

2009

Uncertainty Analysis for Noise-Parameter Measurements at NIST.

James Randa

IEEE Trans. Instrum. Meas., 2009

Variable Termination Unit for Noise-Parameter Measurement.

Dazhen Gu, David K. Walker, James Randa

IEEE Trans. Instrum. Meas., 2009

2007

On-Wafer Measurement of Transistor Noise Parameters at NIST.

James Randa, David K. Walker

IEEE Trans. Instrum. Meas., 2007

2005

Errors resulting from the reflectivity of calibration targets.

James Randa, David K. Walker, Amanda E. Cox, Robert L. Billinger

IEEE Trans. Geosci. Remote. Sens., 2005

2004

Errors due to the reflectivity of calibration targets.

James Randa, David K. Walker, Amanda E. Cox, Robert L. Billinger

Proceedings of the 2004 IEEE International Geoscience and Remote Sensing Symposium, 2004

Standard radiometers and targets for microwave remote sensing.

James Randa, Amanda E. Cox, David K. Walker, Michael H. Francis, Jeffrey R. Guerrieri, Katherine MacReynolds

Proceedings of the 2004 IEEE International Geoscience and Remote Sensing Symposium, 2004

1999

On-wafer measurements of noise temperature.

James Randa, Robert L. Billinger, John L. Rice

IEEE Trans. Instrum. Meas., 1999