CAJ | 학술논문

用海底反射损失对掠射角的斜率作为单个参数描述海底可以简化地声反演过程，快速获得海底的地声性质。基于单参数模型及其相干声场的反射相位近似关系，利用匹配场处理技术反演海底性质。通过Hamilton地声模型中的密度声速关系，同时获得海底的密度和声速值。对2001年中美东海联合实验(ASIAEX 2001)实验数据进行了反演，获得海底地声参数。最后利用反演结果进行传播损失预报及海底沉积物辨别，其效果证实了基于单参数海底模型反演方法的有效性及实用性。
용해저반사손실대략사각적사솔작위단개삼수묘술해저가이간화지성반연과정，쾌속획득해저적지성성질。기우단삼수모형급기상간성장적반사상위근사관계，이용필배장처리기술반연해저성질。통과Hamilton지성모형중적밀도성속관계，동시획득해저적밀도화성속치。대2001년중미동해연합실험(ASIAEX 2001)실험수거진행료반연，획득해저지성삼수。최후이용반연결과진행전파손실예보급해저침적물변별，기효과증실료기우단삼수해저모형반연방법적유효성급실용성。
@@@@Single parameter F dB referred to as the slope of bottom lose versus grazing angle has been used in inversion procedure for rapid extraction of seafloor geoacoustic information. In this paper, matched field inversion is performed on the basis of the single parameter model and reflection phase angle approximation. The sound speed and seabed density are obtained from Hamilton geoacoustic model. Experimental data in East China Sea (ASIAEX 2001) are inverted. In the final step, the validity and usefulness are evaluated by the results from transmission loss prediction and sediment property characterization.