Adaptive Antenna Control (AAC) Program.
Abstract
A theoretical and empirical investigation of angle diversity for application on Defense Communications System (DCS) tropospheric scatter communication links has been completed. The major results are: (1) Development of a new propagation prediction model applicable at frequencies up to 5 GHz. (2) Development of a modem prediction model for calculating the bit error rate and fade outage on a fading multipath channel for the MD-918/GRC modem. (3) A trade-off analysis to determine the optimum angle diversity system. (4) Design and development of a 4.4-5.0 GHz (C-Band) angle diversity feedhorn which gives a beam separation within about 1/2 dB of optimum. (5) Theoretical and empirical evidence that angle diversity has a performance advantage over frequency diversity. (6) Discovery of reduced correlation effects in angle diversity when wideband signals are employed. (7) Development of a methodology and a statistical base for development of future angle diversity systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1980
- Accession Number
- ADA091764
Entities
People
- Peter Monsen
- Steen Parl