声压和振速联合信号处理抗相干干扰

基金项目:

本文受高等学校全国优秀博士学位论文作者专项资金资助.

详细信息

With pressure and particle velocity a combined signal processing approach against coherent interference

摘要: 与传统的只利用声压信息的水声系统相比,组合传感器系统联合处理声场中的声压和振速信息。更多的信息量必然带来更好的处理结果。本文利用组合传感器本身所蕴含的空间方位信息,提出了相干干扰合成能量流抑制(CIES)技术,实现了对相干干扰的有效抑制,具备了良好的线谱信号和宽带连续谱信号检测能力。由计算机仿真的结果来看,其处理结果令人鼓舞,进一步的深入研究正在进行中。

Abstract: Comparing with traditional underwater acoustic system which just utilizes pressure information,combined-sensor system processes pressure and particle velocity information jointly in sound field.More information certainly brings nicer processing result.By using spatial directional information contained in combined-sensor,the Coherent Interference Energy Suppress (CIES for short) technology,which can effectively suppress coherent inference and detect linear spectrum signal and wide-band continuous-spectrum signal as well,is presented.Current research has shown inspiring result,and further research is going on.