【摘要】 提出了一种基于自适应逆控制理论的单模激发闭环控制算法,采用ε-滤波LMS结构,以期望单模声压矢量作为控制指令,并引入抖动信号,通过误差抵消和误差过滤技术,自适应生成对象控制器。计算结果: (1)期望波形能量与均方误差能量之比SER曲线能较快地达以信噪比SNR为极限的平稳线; (2)控制器c的收敛不以对象Q的自适应准确为前提,即对对象的抖动不敏感。结果表明对于由声源阵列和水听器阵列构成的多输入多输出(MIMO)单模激发控制系统,算法简单、有效,能很好地消除海域对象的扰动和噪声,在浅海波导中激发预期单模。更多还原

【Abstract】 A feedback control algorithm is presented, based on adaptive inverse control theory. This approach introduces a e-filter structure, using the desired single mode vector and white disturbance as input, trying to attain an ideal controller by means of the special error filter and error elimination techniques. The simulation calculation result: (1) The Signal-to-Error Ratios (SERs) curves can reach the perfect SNR bound quickly; (2) The controller c can get convergence without needing the accurate replica Q. The results show that the proposed approach is simple, effective, and can eliminate plant disturbance and noise efficiently to excite the desired single mode by using the Multi-Input Multi-Output (MIMO) system consisting of a source array and a feedback array.更多还原