CAJ | 학술논문

为了实现垂直分置结构接收换能器接收的多通道远程海底混响信号仿真,在多通道体积混响相关函数基础上,推导了多通道海底混响的相关函数.并且针对经典多通道混响预测方法计算复杂的问题,开发了一种新的AR模型预测方法.与经典预测方法相比,待估计系数数量由K×K×N降为K×K+N. 最后,仿真试验了不同通道平稳混响信号的相关曲线.仿真结果显示:预测相关曲线与理论相关曲线能够较好的吻合,显示了新方法的有效性.
위료실현수직분치결구접수환능기접수적다통도원정해저혼향신호방진,재다통도체적혼향상관함수기출상,추도료다통도해저혼향적상관함수.병차침대경전다통도혼향예측방법계산복잡적문제,개발료일충신적AR모형예측방법.여경전예측방법상비,대고계계수수량유K×K×N강위K×K+N. 최후,방진시험료불동통도평은혼향신호적상관곡선.방진결과현시:예측상관곡선여이론상관곡선능구교호적문합,현시료신방법적유효성.
In order to simulating multi-channel long-range seafloor reverberation received by vertically placed recievers, based on the correlation function of multi-channel volume reverberation, the correlation function of multi-channel seafloor reverberation was induced. A novel AR model prediction method was put forward to reduce complexity of the classic multi-channel reverberation prediction method. Compared with the classic prediction method, estimated coefficient amount decreases from K×K×N to K×K+N. Finally, the stationary reverberation correlation curves of different channel were simulated, the simulated results show that the curves of predicted correlations fit with the theory correlations well which indicates the efficiency of the method.