In order to improve the real-time performance and reliability of data transmission of short-wave frequency-hopping system,a BICM-OFDM/FH system is proposed based on the combination of bit interleaved encoding modulation(BICM)and orthogonal frequency division multiplexing(OFDM)to acquire coding gain.Relevant theories analyzed and numerical simulation tests performed by using Matlab illustrate that the BICM can improve the performance of shortwave multipath fading channels,whose coding gain is up to 5dB;and i...