摘要
本文采用一种改进的MonteCarlo方法对水下目标信号进行了模拟 .结果表明 ,除单次散射外 ,第二、三次散射对目标信号的作用最大 .而对水下目标时的有效衰减系数Keff进行研究后发现 ,Keff与无水下目标的后向散射包络的有效衰减系数Kb 是不相同的 ,即Keff≠Kb.并由不同参数条件下的模拟结果得出了它们之间的多个简单线性关系式 .
A modified Monte Carlo method is used to simulate the returned signals of underwater target. The results show that the contributions of the second and third scattering to the received target signal are very great in addition to the single scattering. Moreover, a new opinion that the effective attenuation coefficient of the target signal (Keff) is larger than the attenuation coefficient of backscattering (Kb) is proposed. The simple linear relationships between Keff and Kb, are set up based on various parameters.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2003年第12期1815-1819,共5页
Acta Electronica Sinica
基金
国家自然科学基金 (No .699750 0 6)
