Charles S. Lorens."July 15, 1956." "This report is based on a thesis submitted to the Department of Electrical Engineering, M.I.T., July 1956, in partial fulfillment of the requirements for the dgree of Doctor of Science."Bibliography: p. 114.Army Signal Corps Contract DA36-039-sc-64637 Dept. of the Army Task 3-99-06-108 Project 3-99-00-100