jointly sponsored by the Baltimore Section of the Institute of Electrical and Electronis Engineers and the Professional Technical Group on Aerospace and Navigational Electronics. jointly sponsored by the Baltimore Section of the Institute of Electrical and Electronics Engineers and the Aerospace and Navigational Electronics Group. sponsored by the Sacramento to Section of the Institute of Electrical and Electronics Engineers and held April 25, 26, 27, 1979 ... Sacramento, California. sponsored by Communication Society of the Institute of Electrical and Electronics Engineers in cooperation with the Boston Section.