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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。
A closed-loop control algorithm for single-mode excitation based on adaptive inverse control theory is proposed. The ε-filtered LMS structure is adopted to expect the single-mode sound pressure vector as a control command, and the jitter signal is introduced. By using error cancellation and error filtering, Adapt to the generated object controller. The results of the calculation are as follows: (1) The SER curve of the desired waveform energy and the mean square error energy can reach the stationary line with the SNR as the limit more quickly. (2) The controller c does not converge to the adaptive accuracy of the object Q As a prerequisite, that is, the object is not sensitive to jitter. The results show that the proposed algorithm is simple and effective for MIMO single-mode excitation control system composed of sound source array and hydrophone array, which can well eliminate the disturbance and noise of objects in sea area and stimulate the expectation Single mode.