Passive detection of sea targets by using loran-c

The paper presents a passive detection method in which Loran-C signal is chosen as the noncooperative detection signal to detect sea targets. This method processes the echoes of the Loran-C signals from different stations to implement detection of large sea targets beyond long range. The Loran-C signal and any advantages it has with respect to the passive detection for sea targets are investigated in detail. The paper describes fully the signal processing scheme and the associated techniques. Moreover, simulations are presented in this paper to demonstrate that the method is indeed viable.