基于非线性动力学对海洋混响建模,提出了一种自适应非线性预测方法,通过设计一个滤波器来逼近混响信号在相空间的演化轨迹;采用在不同海域进行的两次海上实验获取的混响信号,对自适应预测方法进行验证,其单步预测结果与实验信号符合较好;以模型的单步预测误差作为检验统计量来检测混响中的目标回波,可以在一定程度上抑制混响干扰,提高信混比。 Based on nonlinear dynamics modeling of ocean reverberation, an adaptive nonlinear prediction method is proposed. By designing a filter to approximate the evolution trajectory of the reverberation signal in the phase space, two marine experiments were conducted in different sea areas Obtained the reverberation signal to verify the adaptive prediction method, the single-step prediction results in good agreement with the experimental signal; single-step prediction error model as a test statistic to detect the target echo in the reverberation can be a certain To the extent of inhibition of reverberation interference, improve the letter mix ratio.