Matched field noise suppression: an approach in beam domain

作者：Yang Kun De; Ma Yuan Liang; Zou Shi Xin

来源：Piezoelectrics & Acoustooptics, 2006, 28(1): 102-105.

• towed linear array
• noise suppression
• matched field processing(MFP)

Based on the response of the towed linear array to the noise from the tow ship, a novel approach named MFPIC (Matched Field Postbeamformer Interference Canceller) is proposed to cancel this strong interference. Matched Field Processing (MFP) correlates the replica field and measured field, while MFPIC directly uses the replica field vector to generate interference beam. For towed line array sonar system, MFPIC may provide significant improvement in tow-ship noise suppression, which in turn results in great performance enhancement, and particularly the dead zone of detection around the tow-ship direction could be eliminated. Experimental results based on simulated data for typical towed line array sonar have preliminarily verified the theory and shown great potential of the approach.

• 出版日期2006
• 单位西北工业大学