【摘要】 主要讨论了有限字长 (FWL)数字控制器的一种最优实现问题 ,考察了一个典型的采样反馈系统 ,将实有理稳定半径测度应用到有限字长数字控制器的实现问题中 ,对实稳定半径测度进行优化 ,并由此得到控制器的最优状态变换矩阵和最优结构及最小字长 .数值算例验证了优化的结果是有效的 ,优化后较小字长的控制器就可以使系统取得较大的稳定半径更多还原

【Abstract】 An optimal realization algorithm is discussed for a finite_word_length (FWL) digital controller in a typical sampled_data feedback system. The FWL controller optimization is realized through a real closed_loop stability radius measure. The optimization produced an optimal state transformation matrix as well as the optimal structure and minimum word_length of the controller, The numerical example proves that a larger stability radius can be obtained using an optimal controller with smaller word length.更多还原