[1] WANG Xiping,ROSS R J,MCCLELLAN M,et al. Nondestructive evaluation of standing trees with a stress wave method[J]. Wood Fiber Sci,2001,33(4):522-533. http://www.baidu.com/link?url=o_dvAHOS7bqOvEuHrinQMEuebqkt4P6br8uxBgxOg1noUFGw9B-40UafvHUF4GdM2CjmkUobjh5S4gRR6erMe0_ketkrJDibkm1Bwzub4bHb3Q10NyWgY747iwqk-7gO2xlVOgLUoBhXqImdehjHznE5dR-NHHc2JaUhsQ_AVfDt4LZtGwewol--dDJT-U4t7jbJGa9ZC0qTbnv4979zr24_3loX_Cb8tjPYKcdhxayICssI-AlUmdRga0jZCZE8Xr2jyex6BiPVs1fN1bBLuJfa5SYagjQvITH54dSqbOm9-J1012PD3J_dnN4huot0o46CprNwZCbnbuHePmCliq&wd=&eqid=c8e574140001570b00000005582673f9
[2] 李光辉,尹建新. 基于应力波的木材无损检测技术研究进展[C]//中国自动化学会制造技术专门委员会. 第6届制造业自动化与信息化技术研讨会论文集. 桂林:[出版者不祥],2007:189-193.
[3] 孟瑞华,胡勤龙,刘毅. 应力波时间仪的研制和应用[J]. 南京化工大学学报:自然科学版,2000,22(6):55-57. http://www.cnki.com.cn/Article/CJFDTOTAL-NHXB200006015.htm

MENG Ruihua,HU Qinlong,LIU Yi. Research and design of stress wave time instrument and its applications[J]. J Nanjing Univ Chem Technol Nat Sci Ed,2000,22(6):55-57. http://www.cnki.com.cn/Article/CJFDTOTAL-NHXB200006015.htm
[4] 冯国红,王立海,杨慧敏,等. 应力波木材无损检测信号采集系统[J]. 森林工程,2008,24(2):22-24. http://www.cnki.com.cn/Article/CJFDTOTAL-SSGC200802006.htm

FENG Guohong,WANG Lihai,YANG Huimin,et al. Signal collection system of stress wave nondestructive testing of wood[J]. For Eng,2008,24(2):22-24. http://www.cnki.com.cn/Article/CJFDTOTAL-SSGC200802006.htm
[5] 肖江,杨建华,李黎. 基于单片机的单板层积材抗弯强度应力波波速检测系统[J]. 木材加工机械,2008,19(1):1-5. http://www.cnki.com.cn/Article/CJFDTOTAL-MCJG200801003.htm

XIAO Jiang,YANG Jianhua,LI Li. The detecting system of stress velocity for laminated veneer lumber bending strength based on single chip[J]. Wood Proc Mach,2008,19(1):1-5. http://www.cnki.com.cn/Article/CJFDTOTAL-MCJG200801003.htm
[6] HAYES M P,CHEN J. A portable stress wave measurement system for timber inspection[C]//ENZC. Proceedings of the Electronics New Zealand Conference. Wellington:[s. n.],2003:1-6.
[7] 何涛. 基于DSP的小波降噪技术研究及应用[D]. 郑州:河南工业大学,2011.

HE Tao. Research and Application on Technology of Wavelet Denoising Based on DSP[D]. Zhengzhou:Henan University of Technology,2011.
[8] 栾风虎,李玉峰,于学明,等. 基于高阶累计量的时延估计研究[J]. 黑龙江大学自然科学学报,2010,27(2):260-263. http://www.cnki.com.cn/Article/CJFDTOTAL-HLDZ201002029.htm

LUAN Fenghu,LI Yufeng,YU Xueming,et al. Research of time delay estimation based on higher-order cumulant[J]. J Nat Sci Heilongjiang Univ,2010,27(2):260-263. http://www.cnki.com.cn/Article/CJFDTOTAL-HLDZ201002029.htm
[9] KNAPPY C H,CARTER G C. Generalized correlation method or estimation of time delay[J]. IEEE Trans Acoust Speech Sign Proc,1976,24(4):320-327. doi:  10.1109/TASSP.1976.1162830
[10] HERO A O,SCHWARTZ S C. New generalized cross correlator[J]. IEEE Trans Acoust Speech Sign Proc,1985,33(1):38-45. doi:  10.1109/TASSP.1985.1164515