中文摘要：

为了提高短波跳频系统数据传输的实时性和可靠性,提出了一种将比特交织编码调制（BICM）与正交频分复用（OFDM）相结合以获得编码增益的BICM-OFDM/FH系统,进行理论分析,并采用Matlab进行数值仿真.仿真结果表明：在比特误码率为1.0×10^-5条件下,BICM技术可有效地改善短波多径衰落信道的性能,使编码增益达到5dB;若辅以子载波快速跳频技术可获得10dB的编码增益.

英文摘要：

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 its coding gain is up to 10 dB under the condition of bit error rate of 1.0×10^-5 with the assistance of sub-carrier FFH technology.