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综合模块化航空电子系统(IMA)的时间同步设计是系统设计的一项重要内容。针对典型的IMA系统,提出了一种“软件授时、硬件同步”的时间同步方法,同步精度达到微秒级。该方法实现简单,可直接应用于工程化的IMA系统时间同步设计。
The time synchronization design of an integrated modular avionics system (IMA) is an important part of system design. For a typical IMA system, a time synchronization method of “software timing and hardware synchronization” is proposed, and the synchronization precision reaches the microsecond level. The method is simple to implement and can be directly applied to the time synchronization design of an engineering IMA system.