April 1969 | NTIA Technical Memo ERL TM ITS 163

Effects of sea reflections on phase of arrival of line-of-sight Signals

M. C. Thompson Jr.; H. B. Janes

Abstract: Continuous wave signals at 9. 6 GHz were propagated over a 97 -KM overwater path extending from 80 m to 3000 IT) above mean sea level. Variations in phase of arrival of the signals received by antennas having 1. 2 and 5* beam widths were recorded simultaneously. The broad-beam antenna received a contribution reflected from the sea surface, while the narrow-beam antenna largely discriminated against such reflections. The broad-beam signal displayed consistently higher spectral density than did the narrow-beam signal over the fluctuation frequency range of from O. 1 Hz to the limit of the analysis at about 10Hz.

To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

Back to Search Results