A new technique is proposed for estimating the frequencies within carrier-wave interference (CWI) affecting Loran-C receivers. Its novelty lies in that interference samples are taken synchronously with the Loran-C pulses and ensemble-averaged in the time domain prior to conventional spectrum analysis. Each interferer is thus automatically weighted according to its effect on the phase tracking operation of the receiver. The new method substantially increases the efficiency with which the most insidious interferers may be pinpointed. It requires little additional computational power or memory in the receiver.
High-efficiency Loran-C interference identification by synchronous sampling
IEEE Transactions on Aerospace and Electronic Systems ; 33 , 1 ; 134-141
1997-01-01
1422190 byte
Article (Journal)
Electronic Resource
English
High-Efficiency Loran-C Interference Identification by Synchronous Sampling
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