| 2012 | IGARSS | Realization of a standard radiometer for microwave brightness-temperature measurements traceable to fundamental noise standards. | Dazhen Gu, Derek Houtz, James Randa, David K. Walker |
| 2012 | IGARSS | An investigation of antenna characterization techniques in microwave remote sensing calibration. | Derek Houtz, Dazhen Gu, David K. Walker, James Randa |
| 2011 | IGARSS | Extraction of reflectivity from microwave blackbody target with free-space measurements. | Dazhen Gu, Derek Houtz, James Randa, David K. Walker |
| 2010 | IGARSS | 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 |
| 2010 | IGARSS | 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 |
| 2004 | IGARSS | Standard radiometers and targets for microwave remote sensing. | James Randa, Amanda E. Cox, David K. Walker, Michael H. Francis, Jeffrey R. Guerrieri, Katherine MacReynolds |
| 2004 | IGARSS | Errors due to the reflectivity of calibration targets. | James Randa, David K. Walker, Amanda E. Cox, Robert L. Billinger |