W, A j P~v;s NATIONAL ACADEMIES OF SCIENCE AND ENGINEERING NATIONAL RESEARCH COUNCIL of the UNITED STATES OF AMERICA UNITED STATES NATIONAL COMMITTEE International Union of Radio Science National Radio Science Meeting 6-9 November 1978 Sponsored by USNC/URSI in cooperation with Institute of Electrical and Electronics Engineers University of Colorado at Boulder Boulder, Colorado U.S.A. Price $5.00 --~--------~~-~-----~---- National Radio Science Meeting 6-9 November 1978 Condensed Technical Program SUNDAY, 5 NOVEMBER 2000 USNC/URSI Meeting UMC 159 MONDAY, 6 NOVEMBER 0900-1200 B-1 Scattering - I UMC West Ballroom B-2 Antenna Theory UMC Forum Room C-1 Signal Processing UMC 156 D-1 Power and Energy Measurements UMC 159 at FIR and Submillimeter Wavelengths F-1 Atmospheric Effects Above 10 GHz UMC East Ballroom 1330-1700 Combined Session UMC Center Ballroom 1715 Commission A Business Meeting UMC 158 Commission C Business Meeting UMC 156 Commission D Business Meeting UMC 159 1830-2030 Reception UMC West Ballroom and Glenn Miller Lounge TUESDAY, 7 NOVEMBER 0830-1200 A-1 Measurements and Standards UMC 158' Needs at Millimeter, Sub- Millimeter, and Far Infra- Red Frequencies B-3 New Concepts in Electromagnetics UMC West Ballroom C-2 Computer Networks UMC 156 F-2 Radiooceanography - SEASAT 1 UMC East Ballroom G-1 Ionospheric Heating Experimen- UMC Forum Room tal Results J-1 Radar Astronomy UMC 157 1330-1700 A-2 Nondestructive Electromagnetic UMC 158 Probing and Testing B-4 Earth Effects and Sommerfeld UMC West Ballroom Integral C-3 Satellite Communications UMC 156 F-3 Radiooceanography - Radar UMC East Ballroom Observations G-2 Ionospheric Behavior and UMC Forum Room Propagation J-2 Panel Discussion on UMC 157 Techniques of Very Long Baseline Interferometers 1715-1800 Commission F Business Meeting UMC East Ballroom United States N~tional Committee INTERNATIONAL UNION OF RADIO SCIENCE PROGRAM AND ABSTRACTS National Radio Science Meeting 6-9 November 1978 Sponsored by USNC/URSI in cooperation with IEEE groups and societies: Antennas and Propagation Circuits and Systems Communications Electromagnetic Compatibility Geoscience Electronics Information Theory Instrumentation and Measurement Microwave Theory and Techniques Nuclear and P~asma Sciences Quantum Electronics and Applications Hosted by: Nation.al Oceanic anc;l Atmospheric Administration National Bureau of Standards Institute for Telecommunication Sciences National Telecommunications and Information Administraticn Vniversity of Colorado at Boulder and The Denver-Boulder Chapter, IEEE/APS .,NOTE:. Programs and Abstraqts qf th.e. USNC/tiRSI }'leetings are available from: USNC/URSI Natioi:ia1 Acad,emy crE Sci~i;i.ces 2101 Constitution Ayenue, N.W. Was;hingtqn, ];i.e. ·2041,8 at $2 for meetings prior to 1970, $3 for 1971-75 meetings, and $5 for 1976-78 meetings. The full papers are not published in any collected format; requests. for , them. should b~ ~ddressed . to the. auj::hors who may have them published on their own initiative. Please note that these meetings are national c1.nd j::hey are not organized by in,t~rnational URSj:, no~ are the pr9grams available from the internationai Sec'ietariat. · · · . :_•i ii MEMBERSHIP United States National Committee INTERNATIONAL UNION OF RADIO SCIENCE Chairman: Dr. John V. Evans, Lincoln Laboratory, M.I.T.** Vice Chairman: Dr. C. Gordon Little, Environmental Researc~ Labs, NOAA#** Secretary: 'Dr. James R. Wait, Environmental Research Labs, NOAA#** Editor and Secretary Designate: Dr. Thomas B.A: Senior, University of Michigan Immediate Past Chairman: Dr. Francis S. Johnson, University of Texas, Dallas** Members Representing Societies, Groups and Institutes: American Astronomical Society Prof. Gart Westerhout American Geophysical Union Dr. Christopher T. Russel American Meteorological Society Dr. David Atlas Institute of Electrical & Dr. Ernst Weber+# Electronic Engineering IEEE Antennas & Propagation Dr. Robert C. Hansen Society IEEE Circuits & Systems Society Dr. Mohammed s. Ghausi IEEE Communications Society Mr. Amos Joel IEEE Information Theory Group Dr. Jack K. Wolf IEEE Microwave Theory & Dr. Ken J, Button Techniques IEEE Quantum Electronics Society Dr. Robert A.. Bartolini Optical Society of America Dr. Michael K. Barnoski Liaison Representatives from Government Agencies: National. Science Foundation Dr. W. Klemperper Department of Commerce vacant National Aeronautics & Dr. Erwin R. Schmerling Space Administration Federal Communications Mr. Harry Fine Commission Department of Defense Mr. Emil Paroulek Dept. of the Army Mr. Allan W. Anderson Dept. of the Navy Dr. Alan H. Schooley Dept. of the Air Force Mr. Allan C. Schell Members-At-Large: Mr. D.E. Barrick Mr. L.S. Taylor Mr. A.W. Guy iii Chairmen of the USNC-URSI Commissions: C9mmission A Dr. Raymond C. Baird Commission B Dr. Thomas A. Senior Commission C Dr. William F. Utlaut Commission D Dr, Kenneth J. Button Commission E Mr. George H. Hagn Commission F Dr. A.H. LaGrone Commission G Dr. Thomas E. Vanzandt Commission H Dr. Frederick W. Crawford Commission J Dr. K.I. Kellermann Vice Chairmen of the USNC-URSI Commissions: Commission B G.A. Deschamps# Commission C M. Schwartz Commission E A.D. Spaulding Commission F R.K. Crane Commission G J. Aarons Commission J A.T. Moffet Officers of URSI resident in the United States: (including Honorary Presidents) Vice President Prof. William E. Gordon+/** Chairmen and Vice Chairmen of Commissions of URSI resident in the United States: Chairman of Commission A Dr. Helmut M. Altschuler Chairman of Commission J Prof. Gart Westerhout Vice Chairman of Commission B Prof. Leopold B. Felsen/f Vice Chairman of Commission E Mr. George H. Hagn Vice Chairman of Commission F Prof. Alan T. Waterman, Jr. Vice Chairman of Commission H Dr. Frederick w. Crawford Foreign Secretary of the U.S. National Academy of Sciences Dr. George S. Hammond+ Chairman, Office of Physical Sciences-NRG Dr. D. Allan Bromley NRC Staff Officer Richard Y. Dow Honorary Members: Dr. Harold H. Beverage Prof. Arthur H. Waynick# + NAS Member If NAE Member ** Member of USNC-URSI Executive Committee iv DESCRIPTION OF INTERNATIONAL UNION OF RADIO SCIENCE The International Union of Radio Science is one of 17 world scientific unions organized under the International Council of Scientific Unions (ICSU). It is commonly designated as URSI (from its French name, Union Radio Scientifique Internationale). Its aims are (1) to promote the scientific study of radio communica­ tions, (2) to aid and organize radio research requiring cooperation on an international scale and to encourage the discussion and pub­ lication of the results, (3) to facilitate agreement upon common methods of measurement and the standardization of measuring instru­ ments, and (4) to stimulate and to coordinate studies of the scien­ tific aspects of telecommunications using electromagnetic waves, guided and unguided. The International Union itself is an organi­ zational 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: J. Voge (France) Immediate Past President: Sir Granville Beynon (UK) Vice Presidents: W.N. Christiansen (Australia) W.E. Gordon (USA) V.V. Migulin (USSR) F.L.H.M. Stumpers (Netherlands) Secretary General: C.M. Minnis (Belgium) Honorary Presidents: 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 organiza­ tion are located at 7 Place Emile Danco, 1180 Brussels, Belgium. The Union is supported by contributions (dues) from 35 member countries. Additional funds for symposia and other scientific activities of the Union are provided by ICSU from contributions received for this purpose from UNESCO. The International Union, as of the XVIII General Assembly held in Helsinki, Finland, August, 1978, has nine bodies called Commissions for centralizing studies in the principal technical fields. The names of the Commissions and the chairmen follow. V A. Electromagnetic Metrology Altschuler (USA) B. Fields and Waves van Bladel (Belgium) C. Signals and Syst~ms Picinbono (France) D. Physical Electronics Smolinski (Pol~nd) E. Interference Environment Likhter (USSR) F. Wave Phenomena in Nonionized Media Eklund . (Sweden) G. Ionospheric Radio King (United Kingdom) H. Waves in Plasmas Gendrin (France) J. Radio Astronomy Westerhout (USA) 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., in August, 1981. The Secretari­ at prepares and distribµtes the Proceedings of these General As­ semblies. The Inte.~national Union arranges international symposia on specific subjects pertaining to the work of one Commission or to several Commissions. The International Union also cooperates with other Unions in international 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 pro­ grams, for many of the phenomena that must be studied are world­ wide in extent and yet are .in a measure subject to control by ex­ perimenters. Exploration of space and· the ext~nsion. of scientific observations to the. space environment is dependent:· on radio for its research. One. of its branches, radio. astronomy, involves cosmos­ wide phenomena. URSI has in .all this a distinct field of useful­ ness in furnishing a meeting ground for the numerous workers in the manifold aspects of radio research; it·s meetings and committee activities furnish valuable means of promoting research through exchange of ideas. · vi NATIONAL RADIO SCIENCE MEETING COMMITTEE MEMBERS: Steering Committee: S.W. Maley, Steering Committee Chairman T.B.A. Senior, Technical Program Committee Chairman R.H. Ott, Assistant Chairman, Technical Program Committee H.A. Patterson, Registration & Facilities Committee Chairman P.L. Jensen, Publications Chairwoman s.w. Maley E.F. Kuester R.C. Baird C.G. Little H.E. Bussey R.H. OU D.C. Chang H.A. Patterson R.Y. Dow T.B.A. Senior W.L. Flock A.D. Spaulding R.L. Gallawa W.F.