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This paper describes a radar system in which a measure of range is obtained as the phase difference between amplitude modulations on the transmitter and echo signals. Significant features of this AM radar system are simplicity and capability of accurately measuring very short ranges. For instance, an experimental unit ranges from zero to 50 feet with maximum error of six inches.
Aerospace and Navigational Electronics, IRE Transactions on (Volume:ANE-9 , Issue: 4 )
Date of Publication: Dec. 1962