基于FPGA的惯导组合数据采集及控制系统设计

Design of inertial navigation data acquisition and control system based on FPGA

利用FPGA并行处理的特点及其丰富的I/O接口,在此设计了一种针对捷联惯导系统的组合数据采集和控制系统。该系统能够实时采集惯导系统所需的IMU和GPS数据,能够根据需要产生任意占空比的PWM控制信号,该系统预留了丰富的I/O接口,方便和DSP等处理器进行无缝连接。测试结果表明,通过这种方法设计的系统,体积小,可靠性高、实时性强。

Based on the characteristics of parallel processing and plenteous IO interfaces of FPGA, the combined data acquisition and control system was designed for the strapdown inertial navigation system. The system can execute the real-time acquisition and processing of IMU and GPS data needed by SINS, and generate PWM control signals with arbitrary duty cycle based on the requirement. The system presets plenteous IO interfaces to connect DSP and other processors. The testing results show that the system designed with this method has small volume, high reliability and better real-time performance.