南京大学学报（自然科学版）Issue(z1)：1-5,5.DOI:10.13232/j.cnki.jnju.2015.07.001
Simulink 仿真实现声参量阵系统中信号调制
Study of signal processing in parametric acoustic array based on Simulink
摘要
Abstract
In the field of acoustics,a parametric array is a nonlinear effect that generates narrow,nearly side-lobe-free beam of low frequency sound wave with high directivity,through the mixing and interaction of high frequency sound wave,effectively overcoming the diffraction effect limit associated with linear acoustics.In this paper,three signal processing schemes used in parametric acoustic array,DSB-AM,SSB-AM and SRAM,are presented and analyzed using Simulink.Results show that,despite of the drawback of lower amplitude of output signal,SRAM has the much lower harmonic distortion,when compared to DSB-AM or SSB-AM.关键词
声参量阵/信号调制/SimulinkKey words
parametric acoustic array/signal modulation/Simulink分类
数理科学引用本文复制引用
孙娜,钱枫,刘晓宙..Simulink 仿真实现声参量阵系统中信号调制[J].南京大学学报（自然科学版）,2015,(z1):1-5,5.基金项目
国家自然科学基金(11474160,11274166) （11474160,11274166）
