[1] VAIDYANATHAN M,BLASK S,HIGGINS T,et al.Jigsaw phase III:A miniaturized airborne 3-D imaging laser radar with photon-counting sensitivity for foliage penetration[C]//SPIE,2007,6550:1-12.

[2] BLANQUER E.Ladar proximity fuze-system study[D].Stockholm:Royal Institute of Technology(KTH),2007.

[5] ZHEN C G,HAN P,LIN B H.Improved BP network-based realtime monitor for NOx releasing from power planturnace[C]//IEEE International Conference on Machine Learning and Cybernetics,2003.doi:10.1109/ICMLC.2003.1259638.

[8] YEN J C,CHANG F J,CHANG S A.A new criterion for automatic multi-level threasholding[J].IEEE Transactions on Image Processing,1995,4(3):370-378.