导弹数字舵机多通道信号转换及传输系统设计

Design of Multi-channel Signal Conversion and Transmission System for Missile Digital Electromechanical Actuator[HS)]

摘要:

针对全数字电动舵机无法直接使用传统的模拟信号及数据传输过程中丢帧、串帧、等待时间过长等问题,设计了一种基于DSP的多通道信号转换及传输系统,该系统采用片外AD及DA转换器实现信号转换,并针对传统通信算法存在的弊端,提出新的方法,实时配置FIFO中断等级,实现存在扰动情况下的无丢帧、无串帧通信,且执行时间37 μs,提高了系统的稳定性、实时性。

Abstract:

In order to test the digital electromechanical actuator, designed a kind of multibus assistant testing equipment. This equipment uses AD and DA change-over circuits for signal conversion. The signal transmission system of multibus improved its versatility and reliability, which included RS-232/422/485 and CAN bus. The result indicates that this assistant testing equipment fits to the testing requirement of digital electromechanical actuators.