基于FPGA的弹载测速方法研究

The Research on the Muzzle Velocity Self-measuring in the Projectile Based on FPGA

为了提高系统的测量精度和可靠性,文中利用FPGA(现场可编程门阵列)的可编程和运算速度快的特点,实现了弹载测速。本方法将Verilog HDL设计的计时电路和除法电路集成在FPGA中,通过XilinxISE Simulator的仿真和Synplify的综合,证明了该方法具有较高精度和可行性。该方法还可方便地在线修改,为弹丸精确定距起爆提供重要参数。

In order to improve the measurement precision and reliability of the system, a method based on field programmable gate array（FPGA） was introduced to achieve muzzle velocity self-measuring in the projectile, which has characteristic of high speed and programmable. This method was integrated timer and divider which designed by Verilog HDL on FPGA. Using simulation software of Xilinx ISE Simulator for simulation analysis and Synplify for synthesis analysis proved that this method has high precision and feasibility. This method was convenient modified on line and provided important parameters for fixed distance detonation.