National Academies of Science and Engineering National Research Council · ofthe United States of America UNITED STATES NATIONAL COMMITTEE International Union of Radio Science National Radio Science Meeting Bioelectromagnetics Symposium June 18- 22, 1979 Sponsored by USNC / URSI held jointly with International Symposium of Antennas and Propagation Society Institute of Electrical and Electronics Engineers University of Washington Seattle, Washington U.S.A. ;._, __ _ ..I! .. '·~?~N L I ' r Next year Visit historic Quebec Attend the 1980 INTERNATIONAL IEEE/AP-S SYMPOSIUM and NORTH AMERICAN RADIO SCIENCE MEETING at UNIVERSITE LA VAL, QUEBEC June 2-6, 1980 For information write to J.A. Cummins Departement de Genie Electrique Universite Laval Sainte-Foy Quebec, Canada GlK 7P4 United States National Committee INTERNATIONAL UNION OF RADIO SCIENCE PROGRAM A~D ABSTRACTS 1979 Spring Meeting June 18-22 Held Jointly with ANTENNAS AND PROPAGATION SOCIETY INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS Seattle, Washington i-1 NOTE: Programs and Abstracts of the USNC/URSI Meetings are available from: USNC/URSI National Academy of Sciences 2101 Constitution Avenue, N.W. Washington, D.C. 20418 The full papers are not published in any collected format; requests for them should be addressed to the authors who may have them published on their-own initiative. Please note that these meetings are national and they are not organized by international URSI, nor are the programs available from the international Secretariat. U.S. National Committee for the International Union of Radio Science MEMBERSHIP Officers Chairman *Dr. C. Gordon Little Vice-Chairman *Mr. George H. Hagn Secretary *Prof. Thomas B. A. Senior Members Representing Societies, Groups and Institutes American Geophysical Union Dr. Christopher T. Russell Institute of Electrical & Electronic Engineering Dr. Ernst Weber IEEE Antennas & Propagation Society Mr. Robert C. Hansen IEEE Circuits & Systems Society Dr. Mohammed S. Ghausi IEEE Communications Society Mr. Amos E. Joel IEEE Electromagnetic Compatibility Society (Vacant) IEEE Information Theory Group Dr. Aaron D. Wyner IEEE Microwave Theory & Techniques Society Dr. Kenneth J. Button IEEE Quantum Electronics Application Society Dr. Robert A. Bartolini Optical Society of America or. Steven F. Clifford Members-at-Large Professor Leonard S. Taylor Dr. Donald E. Barrick Professor Arthur W. Guy Liaison Representatives from Government Agencies National Telecommunications & Information Administration Mr. Samuel E. Probst National Science Foundation Dr. Wilfred K. Klemperer Department of Commerce (Vacant) National Aeronatutics & Space Administration Dr. Erwin R. Schmerling Federal Communications Commission (Vacant) Department of Defense Mr. Emil Paroulek Liaison Representatives from Government Agencies (Cont'd) Department of the Army Mr. Allan W. Anderson Department of the Navy Dr. Leo Young Department of the Air Force Dr. Allen C. Schell Voting Ex-Officio Members a. Chairmen of the USNC-URSI Commissions Commission A Dr. Ramon C. Baird Commission B Prof. George A. Deschamps Commission C Prof. Mischa Schwartz Commission D Dr. Kenneth J. Button Commission E Dr. Arthur D. Spaulding Commission F Dr. Robert K. Crane Commission G Dr. Jules Aarons Commission H Dr. Robert W. Fredricks Commission J Dr. Alan T. Moffet b. Foreign Secretary of the U.S. National Academy of Sciences Dr. Thomas F. Malone c. Chairman, Office of Physical Sciences - NRC Dr. Ralph O. Simmons Non-Voting Ex-Officio Members a. Immediate Past Chairman of USNC-URSI *Dr. John V. Evans b. Officers of URSI resident in the United States (including Honorary Presidents) Vice President *Prof. William E. Gordon Honorary President *Prof. Henry G. Booker c. Chairman & Vice Chairman of Commissions of URSI resident in the United States Chairman of Commission B Prof. Leopold B. Felsen Chairman of Commission C Prof. Jack K. Wolf Chairman of Commission E Mr. George H. Hagn Chairman of Commission F Prof. Alan T. Waterman, Jr. Chairman of Commission H Prof. Frederick W. Crawford Honorary Members Dr. Harold H. Beverage Prof. Arthur H. Waynick * Members of USNC-URSI Executive Committee i-4 DESCRIPTION OF INTERNATIONAL UNION OF RADIO SCIENCE The International Union of Radio Science is one of 18 world scientific unions organized under the International Council of Scientific Unions (!CSU). It is commonly designated as URS! (from its French name, Union Radio Scientifique Internationale). Its aims are (l) to promote the scientific study of radio communi­ cations, (2) to aid and organize radio research requiring co­ operation on an international scale and to encourage the discussion and publications of the results, (3) to facilitate agreement upon common methods of measurement and the standardization of measur­ ing instruments, and (4) to stimulate and to coordinate studies of the scientific aspects of telecommunications using electro­ magnetic waves, guided and unguided. The International Union itslef is an organizational framework to aid in promoting these objectives. The actual technical work is largely done by the National Committees in the various countries. The officers of the International Union are: President: Prof. W. N. Christiansen (Australia) Past President: M. J. Voge (France) Vice-Presidents: Prof. W. E. Gordon (USA) Dr. A. P. Mitra (India) Prof. A. Smolinski (Poland) Prof. F. L. Stumpers (Netherlands) Secretary General: Prof. P. Hontoy (Belgium) Honorary Presidents: H. G. Booker (USA) B. Decaux (France) W. Dieminger (West Germany) J. A. Ratcliffe (UK) R. L. Smith-Rose (UK) The Secretary's office and the headquarters of the organi­ zation are located at Rue de Nieuwenhove, 81, B-1180 Brussels, Belgium. The Union is supported by contributions (dues) from 36 member countries. Additional funds for symposia and other scientific activities of the Union are provided by !CSU from contributions received for this purpose from UNESCO. The International Union, as of the XVIII General Assembly held in Lima, Peru, August 1975, has nine bodies called Commissions for centralizing studies in the principal technical fields. The names of the Commissions and the chairmen and vice­ chairmen follow. A. Electromagnetic Metrology Chairman: Prof. S. Okamura (Japan) Vice-Chairman: Prof. V. Koss (West Germany) B. Fields and Waves Chairman: Prof. L. B. Felsen {USA) Vice-Chairman: Prof. H. G. Unger (West Germany) C. Signals and Systems Chairman: Prof. V. Zima (Czechoslovakia) Vice-Chairman: Dr. J. K. Wolf (USA) D. Physical Electronics Chairman: Prof. G. W. Farnell (Canada) Vice-Chairman: Dr. J. LeMezec (France) E. Electromangentic Noise and Interference Chairman: Mr. G. Hagn (USA) Vice-Chairman: Prof. S. Lundquist (Sweden) F. Wave Phenomena in Non-ionized Media Chairman: Prof. A. T. Waterman {USA) Vice-Chairman: Dr. D. Gjessing (Norway) G. Ionospheric Radio and Propagation Chairman: Dr. B. Hultqvist (Sweden) Vice-Chairman: Dr. P. Bauer (France) H. Waves in Plasmas Chairman: Prof. F. W. Crawford (USA) Vice-Chairman: Dr. M. Petit (France) J. Radio Astronomy Chairman: Prof. H. Tanaka (Japan) Vice-Chairman: Dr. V. Radhakrishnan (India) Every three years, the International Union holds a meeting called the General Assembly. The next General Assembly, the XX will be held in Washington, D.C., USA in August 1981. The Secretariat prepares and distributes the Proceedings of these General Assemblies. The International Union arranges inter­ national symposia on specific subjects pertaining to the work of one Commission or to several Commissions. The International Union also cooperates with other Unions in internattonal symposia on subjects of joint interest. Radio is unique among the fields of scientific work in having a specific adaptability to large-scale international research programs, for many of the phenomena that must be studied are worldwide in extent and yet are in a measure subject to · control by experimenters. Exploration of space and the extension of scientific observations to the space environment is dependent on radio for its communication link and at the same time expands the scope of radio research. One of its branches, radio astron­ omy, involves cosmos-wide phenomena. URSI has in all this a distinct field of usefulness in furnishing a meeting ground for the numerous workers in the manifold aspects of radio research; its meetings and committee activities furnish valuable means of promoting research through exchange of ideas. STEERING COMMITTEE Technical Program Committee Irene C. Peden, Chairperson T. B. A. Senior & James Lambert, Vice Chairperson A. Ishimaru, Chairmen James Yee, Treasurer R. C. Baird R. K. Crane Technical Program G. A. Deschamps E. J. Fremouw Akira Ishimaru Thomas Senior H. Kobayashi Arthur Guy D. Ilic R. D. Martin Arrangements J. M. Morris Thomas Blakney Rubens Sigelmann A. D. Spaulding Registration Bioelectromagnetics Symposium Douglas Conne 11 A. W. Guy Publications Non-Linear Electromagnetics Mervin Vincent Hudson Burke Symposium P. L. E. Uslenghi Programs Eliza Wojtaszek Advisers C.-K. Chou Walter Curtis Thomas Dalby Vernon Westburg Donald Reynolds . Myron Swarm James Meditch Publicity Ronald Trainer i-7 i-8 Dr. Hendricus Bremmer The U.S. National Committee of URS!, together with the Antennas and Propagation Society of IEEE wish to honor the 75th birthday of Dr. Hendricus Bremmer, and welcome his presence at the 1979 combined meeting of these societies in Seattle, Washington. It is hardly necessary to list the many scientific and technical achievements of this man. Dr. Bremmer is recognized