FPGA-based design of laser gyro signal acquisition circuit  

基于FPGA的激光陀螺信号采集电路设计

作　　者：CHEN Jing LI Jinming 陈静;李锦明(中北大学半导体与物理学院,山西太原030051)

机构地区：[1]School of Semiconductors and Physics,North University of China,Taiyuan 030051,China

出　　处：《Journal of Measurement Science and Instrumentation》2025年第1期107-118,共12页测试科学与仪器(英文版)

摘　　要：With the continuous evolution of electronic technology,field-programmable gate array(FPGA)has demonstrated significant advantages in the realm of signal acquisition and processing,and signal acquisition plays a pivotal role in the practical applications of laser gyros.By analysis of the output signals from a laser gyro and an accelerometer,this paper presents a circuit design for signal acquisition of the laser gyro based on domestic devices.The design incorporates a finite impulse response(FIR)filter to process the gyro signal and employs a small-volume,impact-resistant quartz flexible accelerometer for signal aquisition.Simulation results demonstrate that the errors in X,Y,and Z axes fall within acceptable ranges while meeting filtering requirements.The use of FPGA for signal acquisition and preprocessing enhances configuration flexibility,which provides an idea and method for optimizing performance and processing signals in laser gyro applications.随着电子技术的不断发展,现场可编程门阵列(Field-programmable gate array,FPGA)在信号采集和处理领域展现出显著优势,而信号采集是激光陀螺在实际应用中扮演的重要角色。通过深入分析激光陀螺和加速度计的输出信号,设计了一种基于全国产化器件实现的激光陀螺信号采集电路,使用有限脉冲响应(Finite impulse response,FIR)滤波器对陀螺信号滤波处理并采用体积小、抗冲击能力良好的石英挠性加速度计。仿真测试表明,X,Y,Z轴误差均在可接受范围且滤波效果符合设计要求。采用性能卓越的FPGA来完成信号的采集和预处理,提高了配置的灵活性,为激光陀螺应用系统的性能优化和信号处理提供了新的思路和方法。

关 键 词：laser gyro signal acquisition field-programmable gate array(FPGA) finite impulse response(FIR)filter ACCELEROMETER 

分 类 号：TN2[电子电信—物理电子学]