In this paper ,we mainly investigate tacan system modulated by medium frequency , and how to implement down-conversion and digital signal processing algorithm . Finally we use FPGA to implement all the TACAN navigation airborne equipment .

• 本文主要研究了基于中频调制的塔康系统(TACAN)中的数字下变频技术及数字信号处理算法,并最终使用了FPGA硬件平台来实现整个TACAN系统。