Donald L. Folds

Diver-Portable Multi-Sensor Buried Mine-Hunter

Joseph L. Lopes, Robert Marciniak, Donald L. Folds, 1998 .

Controllable Sonar Lenses and Prisms Based on ERFs

Xiaoqi Bao, Zensheu Chang, Yoseph Bar-Cohen, 2004 .

Dual-frequency acoustic lens sonar system developments for the detection of both buried objects and objects proud of the bottom

Joseph L. Lopes, Donald L. Folds, Robert Marciniak, 1999, Defense, Security, and Sensing.

Acoustic lens-based swimmer's sonar

Donald L. Folds, Thomas E. Linnenbrink, Marshall K. Quick, 1999, Defense, Security, and Sensing.

Imaging capability of the higher-frequency subsystem of a dual-frequency acoustic lens sonar system

Joseph L. Lopes, Donald L. Folds, Iris C. Paustian, 2000, Defense + Commercial Sensing.