Loran data modulation: A primer

doi:10.1109/MAES.2007.4350283

2007-09-01

PRE

Sherman Lo *

Benjamin Peterson

Per Enge

DOI：10.1109/MAES.2007.4350283

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摘要

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Loran has provided navigation service since 1958. Though not originally designed with data broadcast capabilities, Loran's versatility has enabled data to be broadcast with great benefits. Research in the last two decades has resulted in a tremendous increase in the data capacity of Loran thereby increasing its utility. Currently, a modernized Loran is being evaluated for its capability to backup GPS and data modulation is an integral part of this Loran design. An overview and analysis of Loran modulation techniques is provided.