H. D. Eckhardt

Miniature Laser Obstacle Warning Systems for Helicopters

H. D. Eckhardt, N. A. Luce, 1970 .

STUDY OF TACTICAL ARMY AIRCRAFT (TAALS). TASK 1 ATMOSPHERIC STUDIES.

H. D. Eckhardt, J. S. Newell, 1964 .

Command, Control, and Communications for Unmanned Air Vehicles in Tactical Air Operations. Volume IV. Modifications/Improvements Evolutionary Program (MIEP).

Frank D. Brown, H. D. Eckhardt, David Wellinger, 1973 .

Mathematical Modelling of Textile Weave Room Sound Propagation

H. D. Eckhardt, 1979 .

Correction to: Simple Model of Corner Reflector Phenomena.

H. D. Eckhardt, 1971, Applied optics.

Simple model of corner reflector phenomena.

H. D. Eckhardt, H D Eckhardt, 1971, Applied optics.