Research on propagation delay correction method based on scaled model of enhanced Loran transmitting antenna

The enhanced Loran signal transmits the signal through the atmospheric channel. Considering the obstacles and other factors, the radio wave will be affected by path loss, shadow fading and multipath fading. Therefore, the signal power at different distances from the transmitting point is different. The scaled model antenna is used to transmit and receive the enhanced Loran signal, and the Loran receiver is used to receive. According to the different power of the received signal of the receiver, the signal propagation distance can be deduced by using the correlation model, so as to correct the path delay, that is, the timing accuracy can be improved.