摘要
现有无人飞行器数据采集均由机载计算机主处理器完成,效率较低,为了提高效率,解决数据采集的可靠性、实时性及精度等问题,设计了一种基于DSP处理器的数据采集系统,该数据采集系统能够对54路模拟量进行巡回采集,给出了系统的软硬件实现方法,在数据采集结束后,系统通过双端口RAM与机载计算机主处理器进行数据传递;为了提高DSP片内ADC的采集精度,给出了片内ADC的软硬件校正方法;实验证明,该系统具有较高的可靠性,能够满足飞行控制系统对传感器数据采集的实时性及精度要求。
CPU of airborne computer implements existing data acquisition of unpiloted vehicle with low efficiency. To improve the efficiency and to solve problems on reliability, real time and precision, the design of acquisition system based on DSP which can make a circuit acquisition for 54 channels data is put forward. After acquisition, the data can transfer between the system and CPU of airborne computer through dual--port RAM. The software and hardware methods to revise ADC on DSP are described. Evidences show that the system can meet with the flight control system on reliability, real time and precision.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第2期434-436,共3页
Computer Measurement &Control
