大气机高度输出接口电路的设计

Design of Height Output Interface Circuit for Atmosphere Machine

为完成俄制大气机与国产航管应答机的交连,设计了由单片机、A/D转换器、电平转换电路、驱动电路、隔离电路和电源等电路组成的俄制大气机高度输出接口板电路。采取数据校准和抗干扰技术,简化硬件电路,提高高度数据转换精度和系统的抗干扰能力。实验表明,该接口电路实现了高度数据的数字化,能够将俄制大气机输出的模拟高度电平信号转换成满足国产航空应答机要求的数字编码信号。

In order to connect Russian-made atmosphere machine with the domestic ATC（Air Traffic Control）,a Russian-made height output interface circuit for atmosphere machine consisted of single chip microcomputer,A/D converter,level converter,driver circuit,isolator and electrical power was designed.The data correlation and anti-jamming technique were adopted to simplify hardware and to enhance conversion precision of height data and anti-jamming performance of the system.The test shows that the interface circuit can convert the analog height signal to digital encoding signal which is fit for the requirements of domestic ATC transponder.