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A node self-localization algorithm based on Chaos-PSO is proposed for higher precision. It improves PSO algorithm, and introduces chaos theory characterized by its randomness and ergodicity to keep the output value out of the local extreme interval. The result of simulation shows that the performance of the new algorithm is better than PSO algorithm. Compared with least squares method which is widely...
In this letter a novel method of scalar miss distance measurement is proposed, which can keep high estimation precision even in the noisy background with very low signal-to-noise. What's more, the good performance is not accompanied with heavy computation load. Simulation results demonstrate the effectiveness and feasibility of the proposed method.
Geographic routing, based on greedy forwarding, relies on topology knowledge of the node's neighbors and achieves short path in the well-connected sensor networks. However, because of the absence of the topology knowledge outside of the neighborhood, the forwarding technique fails in the presence of void area. With the void-handling techniques, the geographic routing will experience non-short path...
The bearings-only tracking based on recursive least squares theory is applied to the passive tracking of aerial maneuvering platform. The motion of target is analyzed. With the photoelectrical measurement of azimuth angle, elevation angle and navigation information induced from aerial platform, precise localization of target is accomplished. The problem of outlier removal is also discussed. The Monte-Carlo...
Location information of nodes is very meaningful to the building of underwater acoustic network. It can be used to fulfill a lot of work, such as partition of nodes' identities, building the routing table, and so on. Because of the restrictions of using GPS, a node localization algorithm based on the distance information is given in this paper, as well as a data transmitting algorithm which achieves...
Firstly, the elementary principle of passive estimation of target depth is studied, which is supported by underwater acoustic detection system of vertical linear array and is conducted in deep sea. Then, error sources of passive estimation of target depth are analysed theoretically from points of view of random error and deployment deviation of vertical linear array, and correlative formulae are deduced...
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