4Birt E A, Smith R A. A review of NDE methods for porosity measurement in fibre-reinforced polymer composites[J ]. Non- Destructive Testing and Condition Monitoring, 2004, 46(11) : 681-686.
5Reynolds W N. Nondestructive testing of fibre-reinforced composite materials[ J ]. Materials & Design, 1985, 5 (6) : 256- 270.
6Bayraktar E, Antolovich S D, Bathias C. New developments in non-destructive controls of the composite materials and ap- plications in manufacturing engineering[J]. Journal of Materials Processing Technology, 2008, 206: 30-44.
7Soumik Sarkar, Kushal Mukheriee, Asok Ray. Generalization of Hilbert transform for symbolic analysis of noisy signals[J ]. Signal Processing, 2009, 89. 1245-1251.
8Ivan W Selesnick. Hilbert Transform Pairs of Wavelet Bases[J ]. Signal Processing Letters, 2001, 8(6) : 170-173.
9Graeiet C, Hasten B. Simultaneous measurement of speed, attenuation, thickness and detrsity with reflected ultrasonic waves in plates[C]. Ultrasonic Symposium, 1994, 2: 1219-1222.
10Biwa S, Idekoba S, Ohno N. Wave attenuation in particulate polymer compcxsites[J ]. Mechanics of Materials, 2002, 34. 671-682.
