反坦克弹光纤惯导嵌入式信号采集系统设计与实现

针对战术导弹通用惯性导航系统应用需求设计了一种基于光纤陀螺与石英加速度计传感器的信号同步采集与实时处理硬件系统,完成了方案设计,对各子模块进行了功能划分与指标分配,采用 DSP+FPGA的嵌入式硬件平台架构,实现了三通道电流到频率脉冲的高精度模/数转换,陀螺仪、加速度计敏感的载体三维角运动、线运动测量信号的同步采集与实时处理功能,具有小型化、通用性强的特点,对样机实现的性能指标验证和测试结果符合设计要求。

Design and implementation of embedded signal acquisition system for anti-tank missile fiber-optic inertial navigation

Aiming at the application requirement of general inertial navigation system for tactical missiles, a signal synchronization acquisition and real-time processing hardware system based on fiber optic gyroscope and quartz accelerometer sensor is designed, and the scheme is designed, function division and index allocation for each sub module is completed, using the embedded hardware platform architecture of DSP+FPGA. The system achieved a three channel high precision analog-digital conversion from current to pulse frequency, achieved synchronous acquisition and real-time processing function of gyroscope and accelerometer sensitive carrier three-dimensional angular motion and line motion measurement signal, has the characteristics of miniaturization and strong versatility. The performance index and test result of the prototype meet the design requirements.