一种改进后的闭环解码算法

doi:10.16180/j.cnki.issn1007-7820.2024.03.004

摘要/Abstract

摘要：

针对传统的闭环解码算法量测方程、传递函数在加速时易造成稳态误差等问题,文中提出了一种改进后的闭环解码算法。在闭环解算之前,使用最小二乘法对旋转变压器输出的信号参数进行数据拟合,获得更加准确的旋转变压器信号,设计校正装置,避免抑制参数波动及非线性因素对系统性能的影响,增强系统的稳定性。利用仿真实验对解码算法进行了稳态误差、角位置和角速度误差分析,结果表明改进后的闭环解码算法更稳定、稳态误差更小,角位置误差波动从(-10,0)变为(-4.0,3.5),角速度误差波动从(-0.50,-0.25)变为(-0.15,0.10)。

关键词: 旋转变压器, 位置信号, 传递函数, 角位置, 闭环解码, 算法, 信号分析, 稳态误差

Abstract:

In view of the problem that the measurement equation and transfer function of the traditional closed-loop decoding algorithm are easy to cause steady-state errors during acceleration,an improved closed-loop decoding algorithm is proposed in this study.Before the closed-loop solution, the least square method is used to fit the output signal parameters of the rotating transformer to obtain a more accurate signal of the rotating transformer. The calibration device is designed to avoid the influence of parameter fluctuation and nonlinear factors on the system performance and enhance the stability of the system.The steady-state error, angular position error and angular velocity error of the decoding algorithm are analyzed by simulation experiment. The results show that the improved closed-loop decoding algorithm is more stable and the steady-state error is smaller.Angular position error fluctuation from (-10, 0) to (-4.0,3.5), the angular velocity error fluctuation from (-0.50,-0.25) to (-0.15,0.10).

Key words: rotating transformer, position signal, transfer function, angular position, closed loop decoding, algorithm, signal analysis, steady-state error

中图分类号:

TP212.9

颜亚灵, 王洛国, 阎瑞, 武明. 一种改进后的闭环解码算法[J]. 电子科技, 2024, 37(3): 26-33.

YAN Yaling, WANG Luoguo, YAN Rui, WU Ming. Research on An Improved Closed Loop Decoding Algorithm[J]. Electronic Science and Technology, 2024, 37(3): 26-33.

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