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Scan to Return to the Clear-Path Value JPL Publication 94-1 9 Proceedings of the Eighteenth NASA Propagation Experimenters Meeting (NAPEX XVI II) and the Advanced Communications Technology Satellite (ACTS) Propagation Studies Miniworkshop Held in Vancouver, British Columbia, June 16-1 7,1994 Faramaz Davarian Editor (NASA-CR-196959) PROCEEDINGS OF THE EIGHTEENTH NASA PROPAGATION EXPERIMENTERS MfETfMG (MAPEX 18) AND.- - THE ADVANCED COMMUNICATIONS TECHNOLOGY SATELLITE (ACTS) August 1, 1994 PROPAPAION STUDIES MINI WORKSHOP (:JPt) 455 p G3f 32 0025990 NASA National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California JPY, Publication 94-19 Proceedings of the Eighteenth NASA Propagation Experimenters Meeting (NAPEX XVI II) and the Advanced Communications Technology Satellite (ACTS) Propagation Studies Miniworkshop Held in Vancouver, British Columbia, June 16-17,1994 Faramaz Davarian Editor August 1, 1994 National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California The research described in this publication was carried out by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California lnstitute of Technology. The NASA Propagation Experimenters [NAPEX) meeting is a forum convened each year to discuss studies supported by the NASA Propagation Program. The reports delivered at this meeting by program managers and investigators present our recent activities and future plans. Representatives from domestic and international organizations who have an interest in radio wave propagation studies are invited to NAPEX meetings for discussions and an exchange of information. This Proceedings records the content of NAPEX XVlll and the ACTS Propagation Studies miniworkshop that preceded it. NAPEX XVIII, which took place at Le Meridien Hotel, Vancouver, Canada, on June 17, 1994, consisted of opening remarks and two sessions. Faramaz Davarian made the opening remarks, which described last year's achievements and next year's plans. Session 1, entitled "Slant Path Propagation Studies and Experiments," was chaired by David Rogers of Communications Research Centre (CRC), Canada. Session 2, entitled "Propagation Studies for Mobile, Personal, and Sound Broadcast Systems," was jointly chaired by Rod Olsen of CRC and Faramaz Davarian of the Jet Propulsion Laboratory (JPL). The main objective of the NASA Propagation Program is to enable new satellite communication applications. This program has always enjoyed a high level of interaction with the space cbmmunications community. During these slow economic times with ever more stringent budgetary constraints, this program needs industry's support more than ever. We are looking to industry to share the cost of some of our most urgent studies. I would like to express my sincere gratitude to Professor Mos Kharadly and his staff for hosting this meeting. They did a splendid job in making this meeting a pleasant one. Thank you Professor Kharadly. Mardy Wilkins was also invaluable in helping us organize the meetings. Furthermore, I would like to thank the participants of both the workshop and NAPEX XVlll for their valuable contributions. Finally, I would like to express my appreciation to Janice Jones of the JPL Technical Information Section for coordinating the publication of this document. Professor V. N. Bringi of Colorado State University will host NAPEX XIX in June 1995. The exact date of this meeting will be announced later. The fifth ACTS Propagation Studies Workshop will take place in Florida on November 29 and 30, 1994. Professor Rudy Henning of the University of Southern Florida has kindly offered to be the local host for this meeting. Faramaz Davarian ABSTRACT The NASA Propagation Experimenters Meeting (NAPEX), supported by the NASA Propagation Program, is convened annually to discuss studies made on radio wave propagation by investigators from domestic and international organizations. NAPEX XVlll was held on June 17, 1994, in Vancouver, British Columbia, Canada. Participants included representatives from Canada, the Netherlands, England, and the United States, including researchers from universities, government agencies, and private industry. The meeting was organized into two technical sessions. The first session was dedicated to slant path propagation studies and experiments. The second session focused on propagation studies for mobile, personal, and sound broadcast systems. In total, 14 technical papers and some informal contributions were presented. Preceding NAPEX XVIII, the Advanced Communications Technology Satellite (ACTS) Propagation Studies Miniworkshop was held on June .I6, 1994, to review ACTS propagation activities with emphasis on ACTS experiments status and data collection, processing, and exchange. Eleven technical papers were presented by contributors from government agencies, private industry, and university research establishments. CONTENTS NAPEX XVlll MEETING OPENING REMARKS............................................................................................. 1 F. Davarian SESSION 1. SLANT PATH PROPAGATION STUDIES AND EXPERIMENTS .......................................................................................................... 5 D. Rogers, Chair PROGRESS REPORT ON OLYMPUS PROPAGATION EXPERIMENTS.............. 7 B. Arbesser-Rastburg (ESA) SLANT PATH PROPAGATION MODELS RESULTING FROM OLYMPUS EXPERIMENTS IN THE U.S ...................................................................1 W. Stutzman (VPI) PROPAGATION CHARACTERISTICS OF 20130 GHz LINKS WITH A 400 MASKING ANGLE .............................................................................................47 F, Davarian, A. Kantak, C. Le (JPL) PROPAGATION DATA AT 20140 GHz AND THE PROPAGATION NEEDS OF MILSTAR ..................................................................................................................77 F.I. Shimabukuro, Y.S. Kim, P. Ayotte (Aerospace & USN) THE 40 AND 50 GHz PROPAGATION EXPERIMENTS AT THE RUTHERFORD APPLETON LABORATORY, UK, USING THE ITALSAT BEACONS .....................................................................................................83 <. J. M. Woodroffe, P.G. Davies, D.N. Ladd, J.R. Norbury (RAL) A DATABASE FOR PROPAGATION MODELS ........................................................87 A. V, Kantak, K. Suwitra, C. Le (JPL) SESSION 2. PROPAGATION STUDIES FOR MOBILE, PERSONAL, AND SOUND BROADCAST SYSTEMS .............................103 R. Olsen and F. Davarian, Chairs CHANNEL CHARACTERISATION FOR FUTURE KA-BAND MOBILE SATELLITE SYSTEMS AND PRELIMINARY RESULTS .....................105 M. Sforza, S. Buonomo, B. Arbesser-Rastburg (ESA) ACTS MOBILE EXPERIMENTS SUMMARY ..........................................................I 17 D.S. Pinck (JPL) ACTS MOBILE PROPAGATION CAMPAIGN......................................................... 135 J. Goldhirsh, W.J. Vogel, G. W Torrence (APL & Texas) SLANT PATH L- AND S-BAND TREE SHADOWING MEASUREMENTS ......................................................................................................151 W.J. Vogel, G. W. Torrence (Texas) PROTOGRAMMETRIC MOBILE SATELLITE SERVICE PREDICTION ..............1 59 R. Akturan, W. J. Vogel (Texas) PROPAGATION CONSlDERATlONS FOR THE ODYSSEY SYSTEM DESIGN .....................................................................................................165 H. H. Ho (TR W) COMMUNICATIONS AVAILABILITY: ESTIMATION STUDIES AT AMSC.. ...................................................................................................................I 8 1 C.E. Sigler, Jr. (AMSC) S-BAND PROPAGATION MEASUREMENTS (Not Presented) ..........................2 1 1 R.D. Briskman (CD Radio) SATELLITE FADE STATISTICS AND DIVERSITY GAIN FOR PERSONAL AND BROADCAST SATELLITE COMMUNICATIONS SYSTEMS DERIVED FROM TDRS OBSERVATIONS .........................................223 W. J. Vogel, G. W. Torrence (Texas) CONTENTS ACTS MINIWORKSHOP OPENING REMARKS............................................................................................. 239 F. Davarian, Chair ADVANCED COMMUNICATIONS TECHNOLOGY SATELLITE (ACTS) PROGRAM..................................................................................................................... 243 R. Bauer (NASA Lewis) ACTS PROPAGATION TERMINAL MAINTENANCE, SUPPORT AND UPDATES............................................................................................................ 267 D. Westenhaver (WWW, Inc.) RADIOMETER CALIBRATION PROCEDURE AND BEACON ATTENUATION ESTIMATION REFERENCE LEVEL ............................................ 273 R.K. Crane (Oklahoma) DATA CENTER STATUS REPORT ..........................................................................287 W.J. Vogel, A. Syed (Texas) ALASKA ACTS PROPAGATION TERMINAL: DATA ANALYSIS PROCEDURE, SYSTEM STATUS, AND RESULTS ............................................297 B. Jaeger, C. Mayer (Alaska) U.B.C. ACTS PROPAGATION EXPERIMENT......................................................... 323 I. Dommel, R. Hulays, M. Kharadly (British Columbia) KA-BAND PROPAGATION MEASUREMENTS USING THE ACTS PROPA- GATION TERMINAL AND CSU-CHILL MULTIPARAMETER RADAR ................ 35 1 V.N. Bringi,
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