【摘要】 介绍了一种具有速度预估特性的近似最小二乘测速算法。从频率特性分析的角度阐述了该算法在低精度编码器下测速的优势与不足,并通过合理选择拟合点数、设计低通滤波器,改善了测速总模块的频率特性。实验表明,改进后的测试法可应用于低精度编码器下作速度测量,并具有良好的测速表现。更多还原

【Abstract】 A motor speed measurement method using least-square algorithm is presented.Firstly,its performance under low line encoder is shown,through frequency-response analysis.Secondly,methods,such as choosing suitable fit-point number and designing low-pass filter,are proposed to improve the performance. Experimental results prove its better performance.更多还原