混响背景下单、双基地声纳的探测范围比较  

Comparison of Detectable Region for Bistatic and Monostatic Sonar in Reverberation Background

作　　者：杨丽[1] 蔡志明[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《系统仿真学报》2006年第11期3263-3266,3296,共5页Journal of System Simulation

摘　　要：收、发基地分置可以在一定程度上增大声纳的可探测范围,但由于双基地声纳面临较强的前向散射和侧向散射的影响,在基线延长线附近方位范围内其混响干扰强于单基地声纳。同时由于直达波对接收基地的干扰,双基地声纳在近距离上将出现盲区。在建模计算双基地声纳海底混响的基础上,以浅海为例分析了混响限制下不同位置上的目标在接收基地阵元输入端所形成的信噪比,并与单基地声纳做了比较,从而给出双基地声纳的有效探测范围。Bistatic sonar can expand the detectable area to the some extend, However, because of the influence of forward （in-plane） and out-of-plane scattering, Bistatic reverberation may be greater than the Monostatic.In addition, there would be a mask region with elliptically shape between the transmitter and the receiver due to the ＂direct blast＂. Quantitative analysis was made by accounting for Bistatic reverberation and mask effect of the ＂direct blast＂, The signal-to-interference at receiver was figured and the detectable area for the Bistatic and Monostatic was examined.

关 键 词：混响 双基地声纳 前向散射 侧向散射 探测范围 

分 类 号：TB566[交通运输工程—水声工程]