哈尔滨工程大学学报2025，Vol.46Issue(4)：652-659,8.DOI:10.11990/jheu.202309029
载波功率稳定的参量阵预处理方法
Parameter array preprocessing method with stable carrier power
摘要
Abstract
The existing broadband parametric array preprocessing methods based on Berktay's far-field solution theo-ry cannot maintain stable carrier power.Aiming to address this issue,this paper proposes a new square root ampli-tude modulation method that ensures stable carrier power.The proposed method can adapt to changes in the modu-lation coefficient and the number of line spectra through adjustments in the DC component in the envelope expres-sion,thereby maintaining a stable carrier power.The paper analyzes the difference frequency consistency,control-lability of the relative difference frequency power,and the carrier power stability of the proposed method in compar-ison with the traditional single sideband amplitude modulation method and designs corresponding tank experiments.The study shows that,while maintaining stable carrier power,the new method can quantitatively control the relative difference frequency power,with carrier power fluctuations limited to within-1.5～1.5 dB.The proposed method not only enables control of the relative difference frequency power but also ensures stable control of the carrier pow-er,thereby guaranteeing the reliability of subsequent operations.关键词
非线性声学/水声参量阵/Bertkay远场解/参量阵预处理/载波功率/差频相对功率/单边带幅度调制/平方根幅度调制Key words
nonlinear acoustics/hydroacoustic parameter array/Berktay's far-field solution/preprocessing of pa-rameter array/carrier power/difference frequency relative power/single sideband amplitude modulation/square root amplitude modulation分类
信息技术与安全科学引用本文复制引用
樊博,时洁,施浩康,路正华..载波功率稳定的参量阵预处理方法[J].哈尔滨工程大学学报,2025,46(4):652-659,8.基金项目
国家自然科学基金项目(52271342,52171333) （52271342,52171333）
领军人才团队建设项目支持(3072022FSC0501) （3072022FSC0501）
国家自然科学基金原创探索计划项目(52250344) （52250344）
国家自然科学基金国家重大科研仪器研制项目(52327901). （52327901）
