【摘要】 为实现对机载IRM DME(无线电磁罗盘指示器 测距机 )系统的高精度测试 ,提出了一种通过软件算法提取信号角度信息的新型同步信号接收电路。电路以高性能C80 5 1F0 2 0片上系统为硬件核心 ,软件采用C5 1编程 ,由主程序、数据采集处理、按键中断、数据显示和串口通信中断等几大模块实现。给出了输入同步信号角度信息提取的计算方法更多还原

【Abstract】 In order to realize high-precisien measurement of the airborne IRM/DME(radio magnetic compass display/rangefinder)system, this paper proposes a new kind of synchronous signal receiver circuit in which the signal angle information is withdrawed by the software algorithm. The receiver circuit takes the high performance chip C8051F020 as the hardware core, and software uses C51 language, composed of several big modules such as main program, data acquisition processing program, pressed key interrupt program, data display program and string port communication interrupt program.The computational method of input synchronous signal angle information extraction are also given out.更多还原