| 重建参数对平面近场声全息重建精度影响研究 |
| |
| 引用本文： | 刘强,王永生,苏永生. 重建参数对平面近场声全息重建精度影响研究[J]. 武汉理工大学学报(交通科学与工程版), 2014, 0(4): 811-815 |
| |
| 作者姓名： | 刘强 王永生 苏永生 |
| |
| 作者单位： | 海军工程大学动力工程学院,武汉430033 |
| |
| 摘 要： | 针对近场声全息重建结果不准确性问题,基于平面近场声全息的基本原理,分析了使用k-空间抽样格林函数逆向重构过程中产生重建误差的原因,并研究了重建距离、重建频率和采样点数等重建参数的变化对声压重建精度的影响.研究结果表明：重建精度随着重建距离的增加而降低;随着重建频率的增加,重建精度逐渐降低;在全息面大小不变时,采样点数越多,重建精度越高;在采样间隔不变时,重建精度随采样点数的增加而增大.
|
| 关 键 词： | 声全息 平面近场声全息 重建误差 重建参数 |
Research on Effect of Reconstructive Parameters on Precision by Planar Near-field Acoustical Holography |
| |
| LIU Qiang,WANG Yongsheng,SU Yongsheng. Research on Effect of Reconstructive Parameters on Precision by Planar Near-field Acoustical Holography[J]. journal of wuhan university of technology(transportation science&engineering), 2014, 0(4): 811-815 |
| |
| Authors: | LIU Qiang WANG Yongsheng SU Yongsheng |
| |
| Affiliation: | (College of Marine Power Engineering, Naval University of Engineering, Wuhan 430033, China) |
| |
| Abstract: | According to the inaccurate problem of reconstruction result by acoustic holography,the cause of reconstructive errors generated by using k-space sample Green＇s function are analyzed based on the principles of planar near field acoustical holography（PNAH）.It is possible to study the effect of pressure precision by simulation due to the variety of reconstructive parameters including reconstructive distance,reconstructive frequency and sampling numbers.The results show that,with the reconstructive distance increasing,the precision gets worse.In the reconstructive frequency range,the precision is more and more decreased.If the hologram size is unchangeable,the more sampling numbers are,the better the precision is and same trend appears with invariable sample interval. |
| |
| Keywords: | acoustical holography planar near field acoustical holography reconstructive error reconstructive p arameter |
| 本文献已被 维普 等数据库收录！ |
|
