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K/Ka-band channel characterization for mobile satellite systemsMobile satellite systems allow truly ubiquitous wireless communications to users anywhere and anytime. NASA's Advanced Communications Technology Satellite (ACTS) provides an ideal space-based platform for the measurement of K/Ka band propagation characteristics in a land mobile satellite application. Field tests conducted in Southern California during the first seven months of 1994 using JPL's ACTS Mobile Terminal (AMT) provided channel characterization data for the K/Ka-band link. A pilot tone was transmitted from a fixed station in Cleveland, Ohio through the satellite and downlinked at 20 GHz in the Southern California spot beam. The AMT was equipped with a narrow beam, high gain antenna which tracked the satellite in azimuth for a fixed elevation angle (46 degrees for this case). The field tests were conducted in three basic environments: clear line-of-sight (LOS) highways, lightly shadowed suburban, and heavily shadowed suburban. Preliminary results of these field tests indicate very little multipath for rural environments and for clear LOS links (as expected with a narrow beam antenna). Deep fades were experienced in shadowed areas, especially those where tree canopies covered the road.
Document ID
Document Type
Conference Paper
Pinck, Deborah S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Rice, Michael D. (Brigham Young Univ. Provo, UT United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Proceedings of the Fourth International Mobile Satellite Conference (IMSC 1995)
Subject Category
Communications and Radar
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19960022452Analytic PrimaryProceedings of the Fourth International Mobile Satellite Conference (IMSC 1995)
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