This thesis is devoted to a study on synchronization and equalization of OFDM, which are the critical technologies in the field, while laying emphasis on its application in HF.

• 在OFDM系统中,由于多径和各种因素引起的选择性衰落存在,需要均衡来补偿信道特性的不理想,以用来减小由此带来的系统性能的损失。