基于嵌入式技术的靶场破片测速系统设计

为了增强靶场破片测速系统的便携性和实时性，提出了一种基于嵌入式技术的靶场破片测速系统设计方法。系统硬件上采用ARM＋FPGA的架构，软件上不仅采用Qt／Embedded设计了图形界面，而且给出了嵌入式设备上Qt／Embedded程序的优化方法。经过多次野外破片测速试验检测，系统工作稳定，可实现破片飞行速度、速度降、末速度、破片速度分布等参数的获取。试验结果证明，系统能够满足靶场破片测速的大多数需要。

Design of Velocity-measuring System Based on Embedded Technology for Fragments in Shooting Range

In order to improve the portability and real-time performance of the velocity measurement system for the fragments in shooting range, a method to design the system based on embedded technology is presented, the ARM and FPGA architecture is adopted for the hardware of the system. As for the software, Qt/Embedded is employed to design the graphical interface. The optimization method of Qt/Embedded program on embedded platforms is presented. The system works well in the filed experiments for the fragment velocity-measuring test. Many essential parameters, such as the starting velocity, speed drop, terminal velocity, velocity distribution of a flying fragment, were acquired by the system. The experimental results prove that the system can meet almost all the need of range fragment velocity measurement.