in the study of environment model-based processing, the thesis presents a signal enhancement method based on combination of the ocean acoustic propagation, measurement system and noise models . furthermore, a signal enhancement algorithm is developed on the basis of the model-based identifer ( mbid ) implemented by the the augmented gauss-markov process and corrsponding extended kalman filter 本文通過了對?;盘柼幚韺崿F(xiàn)信號增強的理論研究,提出了一種利用傳播模型、噪聲模型和陣測量模型、并注重環(huán)境信息來實現(xiàn)水聲信號增強的方法,繼而實現(xiàn)了基于增廣高斯?馬爾可夫過程和相應(yīng)的擴展卡爾曼濾波聯(lián)合的?;孀R器的信號增強算法。