农机化研究Issue(7)：43-47,5.
基于小波包变换的小麦硬度声学检测方法研究
Study of Wheat Hardness Acoustic Detection Based on Wavelet Packet Transform
摘要
Abstract
A new acoustic method based on wavelet packet transform was proposed for the wheat hardness detection .The system collected the ultrasound signal of the wheat and exploded it by using the wavelet packet transform , got the sub-band energy of signal and extracted some characteristic parameters .Through linear regression analysis ,the regression mod-el between wheat hardness and the characteristic parameters was established. The linear correlation coefficientr 2 has reached 0 .9589 .关键词
声学检测/小麦硬度/小波包变换/频带能量/回归分析Key words
acoustic detection/wheat hardness/wavelet packet transform/band energy/regression analysis分类
农业科技引用本文复制引用
郭建铭,王爱民,杨红卫..基于小波包变换的小麦硬度声学检测方法研究[J].农机化研究,2013,(7):43-47,5.基金项目
“十一五”国家科技支撑计划项目 （）
