基于FPGA的多路数据同步采编存储系统设计

Design of multi⁃channel synchronous data acquisition and storage system based on FPGA

传统采编存储系统体积庞大,传输效率不高,为提高飞行试验中飞行参数的测试水平,准确了解掌控飞行器的飞行姿态,设计一种基于FPGA的小型化多通道同步实时采编存储系统。该系统以FPGA为核心控制芯片,分别从总体方案设计、混合编帧、硬件电路设计和软件设计等方面展开论述。实验结果表明,该系统采集精度高、体积小、可以在高温、高压、高冲击、强振动等恶劣情况下工作,能高效地完成多路采集,其采样精度可达0.1%,采集路数也可根据实际情况进行扩展,并且已经在飞行试验动态测试中得到应用,性能良好,值得推广。

As the traditional acquisition and storage system has large volume and low transmission efficiency,a miniaturized multi⁃channel synchronizing real⁃time acquisition and storage system based on FPGA is designed to improve the test level of flight parameters in the flight test and accurately understand and control the flight attitude of the aerocraft.In this system,the FPGA is taken as the core control chip,and the discussion is performed from the overall scheme design,hybrid frame design,hardware circuit design,software design and other aspects.The experimental results show that the system has high acquisition precision and small volume,can work under the severe conditions such as high temperature,high pressure,high impact and strong vibration,can efficiently perform multi⁃channel acquisition with a sampling accuracy of 0.1%,and can expand the number of acquisition channels according to actual conditions.The system has been applied in the flight test of dynamic testing,and has good performance,which is worth promoting.