摘要
由受控航行体的非线性微分方程组导出小扰动线性方程；按实际可行的量测方案建立观测方程：根据极大似然原理导出辨识非线性动力学系统参数的全部算式；利用模拟观测数据作仿真辨识，求得７个水动参数。
Linear perturbated equations are derived from nonlinear differential eqautions of controled navigating body. Identificability of hydraulic parameters is demonstrated. Observation equations according to a realistic observation scheme are established. Identification algorithm of nonlinear dynamic system is developed by maximum likelihood principle. Seven hydraulic parameters of controled navigating body are estimated by simulative observed data.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1992年第2期89-95,共7页
Journal of Tsinghua University(Science and Technology)
关键词
受控航行体
水动参数
参数辨识
parameter identification, maximum likelihood method, nonlinear dynamic system, controled navigating body, hydraulic parameter
