Paper selection criteria

All papers published in this Conference Record are considered as "Publications of Record." An abstract of each paper will appear in the September 1972 issue of the IEEE Transactions on Aerospace and Electronic Systems, Volume AES 8 Number 5. The abstracts and the papers in this volume will be included in the 1972 Index to this publication. Each paper published in this Record was reviewed by the Session Chairman for appropriateness and technical soundness. Because of the nature of the subject matter, most of the papers were invited.