摘要
本文研究水声换能器瞬态校准技术。用Ｐｒｏｎｙ参数模型来进行采样的瞬态信号的分析，大大扩展了由校准水域有限尺寸限定的可校准的低频限；提出了通过设计最小相位信号来补偿换能器发射特性起伏，而提高换能器校准精度的新方案；并由设计的模拟校准实验和实际校准实验证明了其有效性。
The technique of transient calibration of acoustic transducers is investigated. Thelow frequencyAnit imposed by confined water tank is prominently reduced by applying Prony'smodel to the sampled transient data. In this paper, a new conception that the fluctuation oftransmitting characteristics of transducers may be compensated by using devised minimum phasesignals is presented to improve the calibration accuracy of transducers with unflat transmittingresponse. And its effectiveness is demonstrated in both simulated and actual experiments.
出处
《声学学报》
EI
CSCD
北大核心
1996年第4期306-312,共7页
Acta Acustica
