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《Laser & Infrared》 2003-01
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Frequency Analyzing of Backscattering Signals in Airborne Laser Bathymetry

ZHU Xiao 1,WANG Hua 1,QI Li-jun 1,ZHANG Yun-dong 2 (1.National Laboratory of Laser Technology,H.U.S.T.,Wuhan 430074,China; 2.Harbin Institute of Technology,Institute of Opto-electronics, National Key Lab of Tunable Laser Technology,Harbin 150001,China)  
In terms of Airborne laser bathymetry backscatter ing lider equation,the backscattering envelop is analyzed in the field of frequency.The frequency included in backscatter envelop would broad 236MHz and 220MHz when the attenuation coefficient of sea water changes from 0.2/m to 0.9/m and the albedo of the sea water changes from 0.1 to 0.9 respectively.The altitude of the plane and the optical receiver field of view have little effect on the frequency of backscattering signals.When the sensitivity of the detecting system is 1.56×10 -10 W,the frequency width of backscattering envelop is 0f5.6×10 8Hz,under the typical experimental parameters.
【Fund】: 可调谐激光国防重点实验室开放基金资助
【CateGory Index】: TN958.98
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【References】
Chinese Journal Full-text Database 1 Hits
1 JI Hang1,2,MA Yong1,2,LIANG Kun1,2,WANG Hong-yuan1(1.Department of Electronics and Information Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;2.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China);Study of bandwidth for suppressing seawater backscattering based on frequency filtering[J];Laser Technology;2008-04
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 LIU Ji-bin 1,2 , ZHAO Hui-chang 1, LU Jian-wei 2 (1. School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing,Jiangsu 210094, China;2. CPLA Air Denfense Forces Command Academy, Zhengzhou, Henan 450052, China);Performance Analysis Concering Antinoise for Several Pseudo-random Code Fuzes[J];Acta Armamentarii;2005-01
2 HOU Jian-gang, TAO Ran, SHAN Tao, QI Lin (Department of electronic Eng., Beijing Institute of Technology, Beijing 100081, China);Application of M-sequence in Laser Range Measuring Radar[J];Acta Armamentarii;2005-01
3 WANG Wei,DENG Jia-hao,HUANG Yan,YIN Jun (School of Mechatronics Engineering, Beijing Institute of Technology, Beijing100081, China);Laser Fuze Detection Technique Using the Pseudorandom Code[J];Journal of Beijing Institute of Technology;2003-06
4 HUANG Zeng-rong,QIN Hui-bin,HUANG Bo-zhi (CAE Institute,Hangzhou Dianzi University, Hangzhou 310018, China);Time of Flight Capture in Ultrasonic Pseudo Random Number Distance Measurement[J];Chinese Journal of Sensors and Actuators;2006-03
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7 FPGA ZHANG Bao-rong 1 (1. College of Information Science and Engineering, YanShan University, Qinhuangdao, Hebei 066004, China);Realization of correlation function for periodic pseudo-random sequences using[J];Journal of Yanshan University;2005-04
8 GAO Yuan,HOU Zhi(Changchun University of Science and Technology,Changchun 130022,China);The Application Research of Spread Spectrum Technology in Antenna Survey[J];Journal of Projectiles.Rockets.Missiles and Guidance;2005-04
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