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Passive localization algorithm based on underwater sensor networks

Author: LiuZuo
Tutor: XuZhiYong
School: Nanjing University of Technology and Engineering
Course: Signal and Information Processing
Keywords: Passive Positioning Underwater instant speed of sound Orientation Estimation Network Convergence
CLC: TN929.3
Type: Master's thesis
Year: 2012
Downloads: 42
Quote: 0
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The measurement of underwater targets can be used to locate the active sonar for finding and location . Active positioning system has the advantages of all-weather , high-precision , however , the active measurement to the positioning system relies on transmitting high-power detection signal to be detected , so that is likely to expose itself suffered the other electronic interference , positioning accuracy greatly affected , affect the security of the detection system . In order to compensate for the lack of active positioning system , improved active positioning method , and began passive measurements to locate the research . Stealth technology for the continuous improvement of the modern submarine , submerged , divers underwater target of the paper to the the underwater passive network detection technology with a focus on passive underwater target detection sensor network system . The structure of the network nodes using three - dimensional arrays to joint estimation and instant speed of sound underwater target network node based array measured performance is unaffected by the ups and downs of the impact of underwater sound velocity without the need for sound velocity measurements such as temperature and pressure sensing devices ; underwater speed of sound uneven conditions under multi-node network integration of sound source localization algorithm for fast time-varying and space- varying characteristics of the underwater speed of sound , a preliminary study . Underwater instant speed of sound is estimated to carry out research of the of passive underwater Network Detection Technology , the target sound source using a single network node and azimuth estimates , the key signal processing techniques , a detailed study of the sound source direction with underwater the instant sound velocity of joint estimation algorithm simultaneously fusion positioning research study based on a network of underwater sensor networks to achieve precise positioning of underwater target .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Underwater communication ( Sonar communication)
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