以方波为基波的感应同步器快速高精度融合  

Fast and High-precision Fusion of Inductosyn Based on Square Wave

作　　者：李太平 黄巍 LI Taiping;HUANG Wei(Shanghai Institute of Satellite Equipment,Shanghai 200240,China)

机构地区：[1]上海卫星装备研究所,上海200240

出　　处：《宇航计测技术》2024年第4期72-75,102,共5页Journal of Astronautic Metrology and Measurement

摘　　要：根据感应同步器的粗精通道融合原理和精度要求,设计并实现了一种融合算法,该算法采用多次基波叠加,自动计算基函数的相位和幅值,减小了融合偏差,提高了系统融合的稳定性和裕度。采用方波作为基波,只使用加法器,不需要使用乘法器,可以快速地进行FPGA(Field Programmable Gate Array,现场可编程门阵列)应用,节约FPGA硬件资源和时钟周期,在其他MCU(Micro-Controller Unit,微控制单元)上应用时也可以节约时钟周期。According to the fusion principle and accuracy of the coarse and fine channels of the inductosyn,an algorithm is designed and implemented.Using multiple fundamental wave superposition methods,the phase and amplitude of the basis function is automatically calculated in the algorithm.The fusion function is reduced,and the stability and margin of system fusion is improved.Using square wave as the basis,only adders instead of multipliers is used,FPGA applications can be quickly implemented,FPGA on-chip resources can be saved,as well as clock cycles when applied on other MCUs.

关 键 词：感应同步器 角度融合 方波 加法器 现场可编程门阵列 

分 类 号：TN820.5[电子电信—信息与通信工程] V41[航空宇航科学与技术—航空宇航推进理论与工程]