基于FPGA的塔康中频信号模拟器设计

对机载塔康设备自动检测,需要模拟地面信标台的应答信号作为机载设备的激励,以检测机载设备的工作情况。提出了一种基于可编程逻辑器件,采用直接数字频率合成技术产生塔康导航设备信号的系统设计及实现。对系统的软硬件结构进行了详细描述。并给出了控制逻辑的时序仿真波形及最终输出信号波形。该设备能实现对塔康信标台发射信号的模拟,系统使用方便、结构简单,可以方便的搭建自动测试系统。

Design of intermediate frequency TACAN signal simulator based on FPGA

In order to detect the status of the airborne TACAN device,simulating signals of the TACAN beacon station need to be input.This paper introduces an IF TACAN signal simulator based on FPGA and direct digital frequency synthesis technology,and depicts the structure and function of the hardware and software in detail.This paper also gives the waveform of timing simulation of the control logic circuit in FPGA,and presents the final output signal.It can simulate the transmit signal of TACAN beacon station.This device is easy to use and convenient to structure automatic test system.