Managing hard-disk PCs in the introductory laboratory. - David K. Walker; David S. Tucker (ACM SIGCSE Bull., 1991)

Lectureroom demonstration of serial data communications. - David K. Walker; Hamid Chahryar; Jamil Chaudri; Akhtar Lodgher; Elias Majdalani; David S. Tucker (SIGCSE, 1992)

Computer science lecture room demonstration experiment in event counting (abstract). - David K. Walker; Hamid Chahryar; James W. Moore; David S. Tucker (SIGCSE, 1994)

Standard radiometers and targets for microwave remote sensing. - James Randa; Amanda E. Cox; David K. Walker; Michael H. Francis; Jeffrey R. Guerrieri; Katherine MacReynolds (IGARSS, 2004)

Errors due to the reflectivity of calibration targets. - James Randa; David K. Walker; Amanda E. Cox; Robert L. Billinger (IGARSS, 2004)

Nonlinear modeling of tunnel diode detectors. - David K. Walker; Kevin J. Coakley; Jolene D. Splett (IGARSS, 2004)

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)

Systematic errors of noise parameter determination caused by imperfect source impedance measurement. - Wojciech Wiatr; David K. Walker (IEEE Trans. Instrum. Meas., 2005)

On-Wafer Measurement of Transistor Noise Parameters at NIST. - James Randa; David K. Walker (IEEE Trans. Instrum. Meas., 2007)

Variable Termination Unit for Noise-Parameter Measurement. - Dazhen Gu; David K. Walker; James Randa (IEEE Trans. Instrum. Meas., 2009)

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 (IGARSS, 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 (IGARSS, 2010)

Extraction of reflectivity from microwave blackbody target with free-space measurements. - Dazhen Gu; Derek Houtz; James Randa; David K. Walker (IGARSS, 2011)

Reflectivity Study of Microwave Blackbody Target. - Dazhen Gu; Derek Houtz; James Randa; David K. Walker (IEEE Trans. Geosci. Remote. Sens., 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)

Realization of a standard radiometer for microwave brightness-temperature measurements traceable to fundamental noise standards. - Dazhen Gu; Derek Houtz; James Randa; David K. Walker (IGARSS, 2012)

An investigation of antenna characterization techniques in microwave remote sensing calibration. - Derek Houtz; Dazhen Gu; David K. Walker; James Randa (IGARSS, 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)

A finite element thermal simulation of a microwave blackbody calibration target. - Derek Houtz; David K. Walker (IGARSS, 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)

Simulations to characterize a passive microwave blackbody design. - Derek A. Houtz; David K. Walker; Dazhen Gu (IGARSS, 2015)

Electromagnetic Design and Performance of a Conical Microwave Blackbody Target for Radiometer Calibration. - Derek A. Houtz; William J. Emery; Dazhen Gu; Karl Jacob; Axel Murk; David K. Walker; Richard J. Wylde (IEEE Trans. Geosci. Remote. Sens., 2017)

Brightness Temperature Calculation and Uncertainty Propagation for Conical Microwave Blackbody Targets. - Derek A. Houtz; William J. Emery; Dazhen Gu; David K. Walker (IEEE Trans. Geosci. Remote. Sens., 2018)

Microwave Radiometer Instability Due to Infrequent Calibration. - Kevin J. Coakley; Jolene D. Splett; David K. Walker; Mustafa Aksoy; Paul E. Racette (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2020)