ZHANG Jianlan GAO Tianfu ZENG Juan LI Haifeng LIU Haijun

(Institute of Acoustics, The Chinese Academy of Sciences Beijing 100190)

Received Mar.15, 2007

Revised Apr.17, 2007

Abstract  A transient suppression method for piezoelectric ceramic transducer is presented. By adding some special pedestal pulses to the original transmitted signal, the transient effects in the output of the transducer can be just precisely canceled, thereby achieving the broadband transmission by use of a narrowband transducer. The experimental results show that the transient reposes of the sinusoid pulses and coded signals are suppressed successfully and the acoustic waveforms radiated into the surrounding water are improved significantly.

PACS numbers: 35.60, 35.38