Why this publication?

IEEE Aerospace & Electronic Systems Magazine articles apprise readers of new developments, new applications of old technology, and news of society members, meetings, and related items; IEEE Transactions on Aerospace and Electronic Systems publishes novel, previously unpublished material of a technical nature. What about those items that fall between these two diametric criteria? This publication is our answer. Future Tutorials will be forthcoming if they are useful and well received???as determined by your feedback. We want to hear from you! Please direct comments???pro and con???to Peter Willett as this publication is his idea; he assumed the task of obtaining and managing the refereeing of these initial contributions. Peter explains what a tutorial is???and is not???on the following page. Thanks are extended to Russ Lefevre, President, Ed Reedy, Vice-President of Publications, and the editorial and production staffs of both Transactions and Systems for their outstanding cooperation, knowledge, and assistance in bringing this initial issue to you.