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.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2006年第11期3263-3266,3296,共5页
Journal of System Simulation
关键词
混响
双基地声纳
前向散射
侧向散射
探测范围
reverberation
Bistatic sonar
forward scattering
out-of-plane scattering
detectable area
