基于高速单片机的弹载GPS信号采集

System Design for Missile-borne GPS Signal Acquisition Based on High-speed MCU

针对GPS技术在飞行弹丸上的应用,低速单片机由于其对信息的处理速度较慢,很难准确、实时的采集到运动弹丸的GPS定位信息,提出以C8051F单片机为处理核心的弹载GPS信号采集系统,主要对信号采集系统的天线、电源及硬件接口进行了改进。实验结果表明:利用高速单片机可以使信号采集和存储同步,较为准确地采集到弹丸的飞行参数,进而分析出弹丸的飞行轨迹,为提高弹药的打击精度提供帮助。

For the application of GPS technology on flying projectile, it is difficult for the low-speed MCU to get accurate and real-time GPS signal due to its low-speed signal processing. Therefore, a system for missile-borne GPS signal acquisition based on C8051F MCU is proposed. The antenna, the power supply and the hardware interface are improved. The test results show that： with the high-speed MCU, signal acquisition and storage can be synchronous, and accurate flying parameters can be got to analyze the flight path of the projectile. The given system can help to improve the strike precision of projectiles.