Laser Underwater Target Detection Based on Gabor Transform
In allusion to characteristics of low SNR target signal and complexity of background in underwater laser signal, a method of detecting underwater laser weak target based on Gabor transform is proposed. Firstly Gabor transform is processed on laser underwater complicated non-stationary signal to turn it to become an approximate stationary signal. Then triple correlation is computed with Gabor transform coefficient and it can eliminate random interference and extrude target signals correlation. Since triple correlation peak value of signal with target is far bigger than it of without target and so target can be easily detected. Experiment proves that the proposed method can efficiently detect weak target in low signal-to-noise ratio underwater laser signal with low false alarm rate.
laser underwater detection target detection Gabor transform triple correlation
YANG Shubin PENG Fuyuan
School of Electrical & Information Eng.Wuhan Institute of Technology Wuhan, China, 430073 Dept.of Electronics & Information Eng.Huazhong Univ.of Science and Technology Wuhan, China, 430074
国际会议
第四届国际计算机新科技与教育学术会议(2009 4th International Conference on Computer Science & Education)
南京
英文
95-97
2009-07-25（万方平台首次上网日期，不代表论文的发表时间）