基于PXI的水下目标辐射噪声和信号模拟器

文中以宽带和多目标信号为模型,在虚拟仪器开发环境LabWindows/CVI下,设计和开发了基于PXI总线的水下目标模拟器。目标模拟器产生24阵元平面水声基阵的接收信号,在实验室里模拟海洋环境下的目标回波、混响和环境噪声,提供测试水声设备所需的各种目标信号。最后给出了该系统在水声自导系统调试和性能测试应用中的结果。

Radiation noise from underwater target and signal simulator based on PXI bus

In this paper,an underwater target simulator is designed for wideband and multi-target model based on the PXI bus in LabWindows/CVI.The simulator generates 24-channel analog signals of an under-water acoustic planar array,which can simulate signal target echo,reverberation,and environmental noise in a laboratory marine environment.The simulator provides various target information for test of under-water acoustic devices.Application in developing and testing an underwater acoustic homing system is presented.