CORRELATION OF GPS RECEIVER CHANNEL TRACK CONTINUITY WITH AIRCRAFT STRUCTURAL MASKING
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AbstractA GPS receiver with antennas located in an aircraft-mounted pod will be subject to signal blockage due to masking of the GPS satellite constellation by the aircraft structure. Analysis of aircraft flight test data involving a wing-mounted GPS antenna has shown that most of the receiver’s loss-of-lock occurrences can be correlated with the optical shadow of the aircraft. Shadow regions of various tactical aircraft are used to estimate the extent of tracking outages for GPS pod antennas with the full 18-satellite constellation.
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